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Gong X, Dal Corso A. Pressure and temperature dependent ab- initioquasi-harmonic thermoelastic properties of tungsten. J Phys Condens Matter 2024; 36:285702. [PMID: 38574670 DOI: 10.1088/1361-648x/ad3ac3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 04/04/2024] [Indexed: 04/06/2024]
Abstract
We present theab-initiotemperature and pressure dependent thermoelastic properties of body-centered cubic tungsten. The temperature dependent quasi-harmonic elastic constants (ECs) are computed at several reference volumes including both the phonon and the electronic excitations contribution to the free energy and interpolated at different temperatures and pressures. Good agreement with the experimental ECs on a single crystal at ambient pressure is found. The pressure and temperature dependence of the shear sound velocity measured on polycrystalline tungsten by Qiet alis also in agreement with theory. Some discrepancies are found instead for the compressional velocity at high temperature and this is attributed to the temperature derivative of the bulk modulus, higher in theory than in experiment. These conclusions are reached both by PBE and by PBEsol functionals. The two give elastic properties with a similar pressure and temperature dependence although the latter is closer to experiment at 0 K.
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Affiliation(s)
- Xuejun Gong
- SISSA, Via Bonomea 265, I-34136 Trieste, Italy
- IOM-CNR, Trieste, Italy
| | - Andrea Dal Corso
- SISSA, Via Bonomea 265, I-34136 Trieste, Italy
- IOM-CNR, Trieste, Italy
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2
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Zou Y, Li P, Su C, Yan J, Zhao H, Zhang Z, You Z. Flexible High-Temperature MoS 2 Field-Effect Transistors and Logic Gates. ACS Nano 2024; 18:9627-9635. [PMID: 38489156 DOI: 10.1021/acsnano.3c13220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/17/2024]
Abstract
High-temperature-resistant integrated circuits with excellent flexibility, a high integration level (nanoscale transistors), and low power consumption are highly desired in many fields, including aerospace. Compared with conventional SiC high-temperature transistors, transistors based on two-dimensional (2D) MoS2 have advantages of superb flexibility, atomic scale, and ultralow power consumption. However, MoS2 cannot survive at high temperature and drastically degrades above 200 °C. Here, we report MoS2 field-effect transistors (FETs) with top/bottom hexagonal boron nitride (h-BN) encapsulation and graphene electrodes. With the protection of the h-BN/h-BN structure, the devices can survive at much higher temperature (≥500 °C in air) than those of the MoS2 devices ever reported, which provides us an opportunity to explore the electrical properties and working mechanism of MoS2 devices at high temperature. Unlike the relatively low-temperature situation, the on/off ratio and subthreshold swing of MoS2 FETs show drastic variation at elevated temperature due to the injection of thermal emission carriers. Compared with metal electrode, devices with a graphene electrode demonstrate superior performance at high temperature (∼1-order-larger current on/off ratio, 3-7 times smaller subthreshold swing, and 5-9 times smaller threshold voltage shift). We further realize that the flexible CMOS NOT gate based on the above technique, and demonstrate logic computing at 550 °C. This work may stimulate the fundamental research of properties of 2D materials at high temperature, and also creates conditions for next-generation flexible harsh-environment-resistant integrated circuits.
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Affiliation(s)
- Yixuan Zou
- Department of Precision Instruments, Tsinghua University, Beijing 100084, China
| | - Peng Li
- School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Caizhen Su
- Beijing Information Science & Technology University, Beijing 100192, China
| | - Jiawen Yan
- Department of Precision Instruments, Tsinghua University, Beijing 100084, China
| | - Haojie Zhao
- Department of Precision Instruments, Tsinghua University, Beijing 100084, China
| | - Zekun Zhang
- Department of Precision Instruments, Tsinghua University, Beijing 100084, China
| | - Zheng You
- Department of Precision Instruments, Tsinghua University, Beijing 100084, China
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3
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Mumithrakamatchi AK, Alagarswamy S, Anitha K, Djanaguiraman M, Kalarani MK, Swarnapriya R, Marimuthu S, Vellaikumar S, Kanagarajan S. Melatonin imparts tolerance to combined drought and high-temperature stresses in tomato through osmotic adjustment and ABA accumulation. Front Plant Sci 2024; 15:1382914. [PMID: 38606062 PMCID: PMC11007154 DOI: 10.3389/fpls.2024.1382914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Accepted: 03/05/2024] [Indexed: 04/13/2024]
Abstract
In recent years, environmental stresses viz., drought and high-temperature negatively impacts the tomato growth, yield and quality. The effects of combined drought and high-temperature (HT) stresses during the flowering stage were investigated. The main objective was to assess the effects of foliar spray of melatonin under both individual and combined drought and HT stresses at the flowering stage. Drought stress was imposed by withholding irrigation, whereas HT stress was imposed by exposing the plants to an ambient temperature (AT)+5°C temperature. The drought+HT stress was imposed by exposing the plants to drought first, followed by exposure to AT+5°C temperature. The duration of individual and combined drought or HT stress was 10 days. The results showed that drought+HT stress had a significant negative effect compared with individual drought or HT stress alone. However, spraying 100 µM melatonin on the plants challenged with individual or combined drought and HT stress showed a significant increase in total chlorophyll content [drought: 16%, HT: 14%, and drought+HT: 11%], Fv/Fm [drought: 16%, HT: 15%, and drought+HT: 13%], relative water content [drought: 10%, HT: 2%, and drought+HT: 8%], and proline [drought: 26%, HT: 17%, and drought+HT: 14%] compared with their respective stress control. Additionally, melatonin positively influenced the stomatal and trichome characteristics compared with stress control plants. Also, the osmotic adjustment was found to be significantly increased in the melatonin-sprayed plants, which, in turn, resulted in an increased number of fruits, fruit set percentage, and fruit yield. Moreover, melatonin spray also enhanced the quality of fruits through increased lycopene content, carotenoid content, titratable acidity, and ascorbic acid content, compared with the stress control. Overall, this study highlights the usefulness of melatonin in effectively mitigating the negative effects of drought, HT, and drought+HT stress, thus leading to an increased drought and HT stress tolerance in tomato.
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Affiliation(s)
| | - Senthil Alagarswamy
- Department of Crop Physiology, Tamil Nadu Agricultural University (TNAU), Coimbatore, India
| | - Kuppusamy Anitha
- Department of Crop Physiology, Tamil Nadu Agricultural University (TNAU), Coimbatore, India
| | | | | | | | - Subramanian Marimuthu
- Department of Agronomy, Agricultural College and Research Institute (AC&RI), Eachangkottai, Thanjavur, India
| | - Sampathrajan Vellaikumar
- Centre for Plant Molecular Biology and Biotechnology, Tamil Nadu Agricultural University, Coimbatore, India
| | - Selvaraju Kanagarajan
- Department of Plant Breeding, Swedish University of Agricultural Sciences, Lomma, Sweden
- School of Science and Technology, The Life Science Centre, Örebro University, Örebro, Sweden
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4
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Chen G, Zhao F, Zeng Y, Su Z, Xu L, Shao C, Wu C, He G, Chen Q, Zhao Y, Sun D, Hai Z. Conformal Fabrication of Thick Film Platinum Strain Gauge Via Error Regulation Strategies for In Situ High-Temperature Strain Detection. ACS Appl Mater Interfaces 2024; 16:966-974. [PMID: 38109359 DOI: 10.1021/acsami.3c10866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2023]
Abstract
Monitoring high-temperature strain on curved components in harsh environments is a challenge for a wide range of applications, including in aircraft engines, gas turbines, and hypersonic vehicles. Although there are significant improvements in the preparation of high-temperature piezoresistive film on planar surfaces using 3D printing methods, there are still difficulties with poor surface compatibility and high-temperature strain testing on curved surfaces. Herein, a conformal direct ink writing (CDIW) system coupled with an error feedback regulation strategy was used to fabricate high-precision, thick films on curved surfaces. This strategy enabled the maximum amount of error in the distance between the needle and the substrate on a curved surface to be regulated from 155 to 4 μm. A conformal Pt thick-film strain gauge (CPTFSG) with a room-temperature strain coefficient of 1.7 was created on a curved metallic substrate for the first time. The resistance drift rate at 800 °C for 1 h was 1.1%, which demonstrated the excellent stability and oxidation resistance of the CPTFSG. High-temperature dynamic strain tests up to 769 °C revealed that the sensor had excellent high-temperature strain test performance. Furthermore, the CPTFSG was conformally deposited on an aero-engine turbine blade to perform in situ tensile and compressive strain testing at room temperature. High-temperature strain tests were conducted at 100 and 200 °C for 600 and 580 με, respectively, demonstrating a high steady-state response consistent with the commercial high-temperature strain transducer. In addition, steady-state strain tests at high temperatures up to 496 °C were tested. The CDIW error modulation strategy provides a highly promising approach for the high-precision fabrication of Pt thick films on complex surfaces and driving in situ sensing of high-temperature parameters on curved components toward practical applications.
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Affiliation(s)
- Guochun Chen
- Pen-Tung Sah Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen 361005, P. R. China
- Fujian Micro/Nano Manufacturing Engineering Technology Research Center, Xiamen University, Xiamen 361102, P. R. China
| | - Fuxin Zhao
- Pen-Tung Sah Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen 361005, P. R. China
- Fujian Micro/Nano Manufacturing Engineering Technology Research Center, Xiamen University, Xiamen 361102, P. R. China
| | - Yingjun Zeng
- Pen-Tung Sah Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen 361005, P. R. China
- Fujian Micro/Nano Manufacturing Engineering Technology Research Center, Xiamen University, Xiamen 361102, P. R. China
| | - Zhixuan Su
- Department of Mechanical & Electrical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Lida Xu
- Pen-Tung Sah Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen 361005, P. R. China
- Fujian Micro/Nano Manufacturing Engineering Technology Research Center, Xiamen University, Xiamen 361102, P. R. China
| | - Chenhe Shao
- Pen-Tung Sah Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen 361005, P. R. China
- Fujian Micro/Nano Manufacturing Engineering Technology Research Center, Xiamen University, Xiamen 361102, P. R. China
| | - Chao Wu
- Pen-Tung Sah Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen 361005, P. R. China
- Fujian Micro/Nano Manufacturing Engineering Technology Research Center, Xiamen University, Xiamen 361102, P. R. China
| | - Gonghan He
- Pen-Tung Sah Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen 361005, P. R. China
- Fujian Micro/Nano Manufacturing Engineering Technology Research Center, Xiamen University, Xiamen 361102, P. R. China
| | - Qinnan Chen
- Pen-Tung Sah Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen 361005, P. R. China
- Fujian Micro/Nano Manufacturing Engineering Technology Research Center, Xiamen University, Xiamen 361102, P. R. China
| | - Yang Zhao
- Pen-Tung Sah Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen 361005, P. R. China
- Fujian Micro/Nano Manufacturing Engineering Technology Research Center, Xiamen University, Xiamen 361102, P. R. China
| | - Daoheng Sun
- Pen-Tung Sah Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen 361005, P. R. China
- Fujian Micro/Nano Manufacturing Engineering Technology Research Center, Xiamen University, Xiamen 361102, P. R. China
| | - Zhenyin Hai
- Fujian Micro/Nano Manufacturing Engineering Technology Research Center, Xiamen University, Xiamen 361102, P. R. China
- Department of Mechanical & Electrical Engineering, Xiamen University, Xiamen 361005, P. R. China
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Yalcin O, Sourav S, Wachs IE. Design of Cr-Free Promoted Copper-Iron Oxide-Based High-Temperature Water-Gas Shift Catalysts. ACS Catal 2023; 13:12681-12691. [PMID: 37822859 PMCID: PMC10563126 DOI: 10.1021/acscatal.3c02474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/19/2023] [Indexed: 10/13/2023]
Abstract
The effect of Ce addition to the Cr-free Al-promoted Cu-Fe oxide-based catalysts is investigated. Catalyst characterization (X-ray diffraction (XRD), in situ Raman spectroscopy, high-sensitivity low-energy ion scattering (HS-LEIS), Brunauer-Emmett-Teller (BET) analysis), CO-temperature-programmed reduction chemical probing, and steady-state WGS activity reveal that (i) in the absence of Al, Ce addition via coprecipitation has a detrimental effect on the catalytic activity related to the poor thermostability and formation of less active Ce-Cu-O NPs, (ii) the addition of Ce via coprecipitation also does not improve the performance of the CuAlFe catalyst because of the formation of a thick CeOx overlayer on the active Cu-FeOx interface, and (iii) impregnation of Ce onto the CuAlFe catalyst exhibits significant improvement in catalytic performance due to the formation of a highly active CeOx-FeOx-Cu interfacial area. In summary, Al does not surface-segregate and serves as a structural promoter, while Ce and Cu surface-segregate and act as functional promoters in Ce/CuAlFe mixed oxide catalysts.
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Affiliation(s)
- Ozgen Yalcin
- College
of Engineering and Technology, American
University of the Middle East, Egaila 54200, Kuwait
| | - Sagar Sourav
- Operando
Molecular Spectroscopy & Catalysis Laboratory, Department of Chemical
and Biomolecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Israel E. Wachs
- Operando
Molecular Spectroscopy & Catalysis Laboratory, Department of Chemical
and Biomolecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
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Kumar A, Sirohi S, Pandey SM, Kumar P, Fydrych D, Pandey C. High-Temperature Tensile Behaviour of GTAW Joints of P92 Steel and Alloy 617 for Two Different Fillers. Materials (Basel) 2023; 16:5880. [PMID: 37687573 PMCID: PMC10488703 DOI: 10.3390/ma16175880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 08/18/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023]
Abstract
This study explores the high-temperature (HT) tensile rupture characteristics of a dissimilar gas-tungsten-arc-welded (GTAW) joint between P92 steel and Alloy 617, fabricated using ER62S-B9 and ERNiCrCoMo-1 fillers. The high-temperature tensile tests were performed at elevated temperatures of 550 °C and 650 °C. An optical microscope (OM) and a field emission scanning electron microscope (FESEM) were utilized to characterize the joint. The high-temperature test results indicated that the specimen failed at the P92 base metal/intercritical heat-affected zone (ICHAZ) rather than the weld metal for the ERNiCrCoMo-1(IN617) filler. This finding confirmed the suitability of the joint for use in the Indian advanced ultra-supercritical (A-USC) program. The fracture surface morphology and presence of precipitates were analysed using an SEM equipped with energy dispersive spectroscopy (EDS). The appearance of the dimples and voids confirmed that both welded fillers underwent ductile-dominant fracture. EDS analysis revealed the presence of Cr-rich M23C6 phases, which was confirmed on the fracture surface of the ER62S-B9 weld (P92-weld). The hardness plot was analysed both in the as-welded condition and after the fracture.
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Affiliation(s)
- Amit Kumar
- Mechanical Department, Indian Institute of Technology Jodhpur, N.H. 62 Nagaur Road, Karwar 342037, India; (A.K.); (C.P.)
| | - Sachin Sirohi
- Mechanical Department, SRM Institute of Science and Technology, Delhi NCR Campus, Modinagar 201204, India
| | - Shailesh Mani Pandey
- Department of Mechanical Engineering, National Institute of Technology, Patna 800005, India
| | - Pradeep Kumar
- Mechanical and Industrial Engineering Department, Indian Institute of Technology Roorkee, Roorkee 247667, India
| | - Dariusz Fydrych
- Institute of Manufacturing and Materials Technology, Faculty of Mechanical Engineering and Ship Technology, Gdańsk University of Technology, Gabriela Narutowicza Street 11/12, 80-233 Gdańsk, Poland
| | - Chandan Pandey
- Mechanical Department, Indian Institute of Technology Jodhpur, N.H. 62 Nagaur Road, Karwar 342037, India; (A.K.); (C.P.)
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Wang Y, Bao X, Wang W, Xu X, Liu X, Li Z, Yang J, Yuan T. Exploration of anti-stress mechanisms in high temperature exposed juvenile golden cuttlefish ( Sepia esculenta) based on transcriptome profiling. Front Physiol 2023; 14:1189375. [PMID: 37234426 PMCID: PMC10206265 DOI: 10.3389/fphys.2023.1189375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Accepted: 04/28/2023] [Indexed: 05/28/2023] Open
Abstract
Sepia esculenta is a cephalopod widely distributed in the Western Pacific Ocean, and there has been growing research interest due to its high economic and nutritional value. The limited anti-stress capacity of larvae renders challenges for their adaptation to high ambient temperatures. Exposure to high temperatures produces intense stress responses, thereby affecting survival, metabolism, immunity, and other life activities. Notably, the molecular mechanisms by which larval cuttlefish cope with high temperatures are not well understood. As such, in the present study, transcriptome sequencing of S. esculenta larvae was performed and 1,927 differentially expressed genes (DEGs) were identified. DEGs were subjected to functional enrichment analyses using the Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) databases. The top 20 terms of biological processes in GO and 20 high-temperature stress-related pathways in KEGG functional enrichment analysis were identified. A protein-protein interaction network was constructed to investigate the interaction between temperature stress-related genes. A total of 30 key genes with a high degree of participation in KEGG signaling pathways or protein-protein interactions were identified and subsequently validated using quantitative RT-PCR. Through a comprehensive analysis of the protein-protein interaction network and KEGG signaling pathway, the functions of three hub genes (HSP90AA1, PSMD6, and PSMA5), which belong to the heat shock protein family and proteasome, were explored. The present results can facilitate further understanding of the mechanism of high temperature resistance in invertebrates and provide a reference for the S. esculenta industry in the context of global warming.
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Affiliation(s)
- Yongjie Wang
- School of Agriculture, Ludong University, Yantai, China
| | - Xiaokai Bao
- School of Agriculture, Ludong University, Yantai, China
| | - Weijun Wang
- School of Agriculture, Ludong University, Yantai, China
| | - Xiaohui Xu
- School of Agriculture, Ludong University, Yantai, China
| | - Xiumei Liu
- College of Life Sciences, Yantai University, Yantai, China
| | - Zan Li
- School of Agriculture, Ludong University, Yantai, China
| | - Jianmin Yang
- School of Agriculture, Ludong University, Yantai, China
| | - Tingzhu Yuan
- School of Agriculture, Ludong University, Yantai, China
- Marine Economy Promotion Center of Changdao County Marine Ecological Civilization Comprehensive Experimental Zone, Yantai, China
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Nahar L, Aycan M, Lopes Hornai EM, Baslam M, Mitsui T. Tolerance with High Yield Potential Is Provided by Lower Na + Ion Accumulation and Higher Photosynthetic Activity in Tolerant YNU31-2-4 Rice Genotype under Salinity and Multiple Heat and Salinity Stress. Plants (Basel) 2023; 12:plants12091910. [PMID: 37176968 PMCID: PMC10180928 DOI: 10.3390/plants12091910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 04/18/2023] [Accepted: 05/03/2023] [Indexed: 05/15/2023]
Abstract
The yield-reduction effect of abiotic stressors such as salinity and heat stresses with the growing world population threatens food security. Although adverse effects of salinity and heat stress on plant growth and production parameters have been documented, in nature, abiotic stresses occur sequentially or simultaneously. In this study, the stress tolerance and yield capacity of Yukinkomai, YNU31-2-4, and YNU SL rice genotypes tested under control (26 °C, 0 mM NaCl), salinity (26 °C, 75 mM NaCl), heat (31 °C, 0 mM NaCl), and heat and salinity (31 °C, 75 mM NaCl) stress combinations at vegetative and reproductive stages with six different scenarios. The results show that salinity and the heat and salinity combination stresses highly reduce plant growth performance and yield capacity. Heat stress during reproduction does not affect the yield but reduces the grain quality. The YNU31-2-4 genotype performs better under heavy salt and heat and salinity stress then the Yukinkomai and YNU SL genotypes. YNU31-2-4 genotypes accumulate less Na+ and more K+ under salt and multiple stresses. In the YNU31-2-4 genotype, low Na+ ion accumulation increases photosynthetic activity and pigment deposition, boosting the yield. Stress lowers the glucose accumulation in dry seeds, but the YNU31-2-4 genotype has a higher glucose accumulation.
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Affiliation(s)
- Lutfun Nahar
- Department of Life and Food Science, Graduate School of Science and Technology, Niigata University, Niigata 950-2181, Japan
- Department of Agricultural Botany, Sher-e-Bangla Agricultural University, Dhaka 1207, Bangladesh
| | - Murat Aycan
- JSPS International Research Fellow, Graduate School of Science and Technology, Niigata University, Niigata 950-2181, Japan
- Laboratory of Biochemistry, Faculty of Agriculture, Niigata University, Niigata 950-2181, Japan
| | - Ermelinda Maria Lopes Hornai
- Department of Life and Food Science, Graduate School of Science and Technology, Niigata University, Niigata 950-2181, Japan
- National Division of Research and Statistics, Timor-Leste Ministry of Agriculture and Fisheries, Dili 626, Timor-Leste
| | - Marouane Baslam
- Laboratory of Biochemistry, Faculty of Agriculture, Niigata University, Niigata 950-2181, Japan
- Centre d'Agrobiotechnologie et Bioinge' Nierie, Unite' deRecherche labellise' e CNRST (Centre AgroBio-tech-URL-CNRST-05), Universite' Cadi Ayyad, Marrakech 40000, Morocco
- Laboratory of Agro-Food, Biotechnologies, and Valorization of PlantBioresources (AGROBIOVAL), Department of Biology, Faculty of Science Semlalia, Cadi Ayyad University (UCA), Marrakesh 40000, Morocco
| | - Toshiaki Mitsui
- Department of Life and Food Science, Graduate School of Science and Technology, Niigata University, Niigata 950-2181, Japan
- Laboratory of Biochemistry, Faculty of Agriculture, Niigata University, Niigata 950-2181, Japan
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9
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Cheng H, Gao S, Duan D, Yang S, Xue W, Wu B, Zhu Z. Study on the Tribological Behavior and the Interaction between Friction and Oxidation of Graphite Reinforced by Impregnated Phosphate at High Temperatures. Materials (Basel) 2023; 16:ma16093517. [PMID: 37176399 PMCID: PMC10180183 DOI: 10.3390/ma16093517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 04/24/2023] [Accepted: 04/26/2023] [Indexed: 05/15/2023]
Abstract
The stability of the graphite seal device is a key factor for the normal operation of aero engines. However, conventional graphite exhibits poor comprehensive performance due to its porous structure, which limits its application at high temperatures. Therefore, in this paper, phosphate was used to impregnated graphite pores, and the interaction between the friction, wear, and oxidation of phosphate-impregnated graphite against superalloy at high temperatures was studied through pin-on-disk friction tests. The results revealed that the coefficient of friction (COF) of matrix graphite fluctuated greatly, from 0.07 to 0.17, in the range of 100 °C to 500 °C, while the COF of impregnated graphite was stable, at around 0.13, from 100 °C to 500 °C. The wear rates of the two types of graphite were close from 20 °C to 300 °C, while the wear rate of the impregnated graphite was significantly lower than that of the matrix graphite at higher temperatures, from 400 °C and 500 °C. The reason was that the impregnated phosphate reacted with graphite at a high temperature, forming the inert site which helped to inhibit the oxidation and maintain the mechanical properties of the impregnated graphite at high temperatures. In addition, the impregnated graphite could maintain better integrity of the contact surface and reduce the inclusion of large hard metal oxides, thus effectively reducing the abrasive wear of the disk. Therefore, the wear depth of the superalloy disk samples with impregnated graphite was significantly lower than that of the matrix graphite. The results promote the application of phosphate-impregnated graphite under the high temperature conditions of aero engines.
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Affiliation(s)
- Hao Cheng
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
- Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
| | - Siyang Gao
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
- Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
| | - Deli Duan
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
- Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
| | - Shuai Yang
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
- Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
| | - Weihai Xue
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
- Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
| | - Bi Wu
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
- Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
| | - Zhenguo Zhu
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
- Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
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10
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Li R, Li P, Rocca P, Salas Sánchez AÁ, Song L, Li X, Xu W, Fan Z. Design of Wideband High-Gain Patch Antenna Array for High-Temperature Applications. Sensors (Basel) 2023; 23:3821. [PMID: 37112162 PMCID: PMC10143479 DOI: 10.3390/s23083821] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 03/31/2023] [Accepted: 04/06/2023] [Indexed: 06/19/2023]
Abstract
A low-profile, wideband, and high-gain antenna array, based on a novel double-H-shaped slot microstrip patch radiating element and robust against high temperature variations, is proposed in this work. The antenna element was designed to operate in the frequency range between 12 GHz and 18.25 GHz, with a 41.3% fractional bandwidth (FBW) and an obtained peak gain equal to 10.2 dBi. The planar array, characterized by a feed network with a flexible 1 to 16 power divider, comprised 4 × 4 antenna elements and generated a pattern with a peak gain of 19.1 dBi at 15.5 GHz. An antenna array prototype was fabricated, and the measurements showed good agreement with the numerical simulations as the manufactured antenna operated in the range of 11.4-17 GHz, with a 39.4% FBW, and the peak gain at 15.5 GHz was 18.7 dBi. The high-temperature simulated and experimental results, performed in a temperature chamber, demonstrated that the array performance was stable in a wide temperature range, from -50 °C to 150 °C.
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Affiliation(s)
- Ruibo Li
- Key Laboratory of Electronic Equipment Structure Design, Xidian University, Xi’an 710071, China (P.R.)
| | - Peng Li
- Key Laboratory of Electronic Equipment Structure Design, Xidian University, Xi’an 710071, China (P.R.)
| | - Paolo Rocca
- Key Laboratory of Electronic Equipment Structure Design, Xidian University, Xi’an 710071, China (P.R.)
- DICAM—Department of Civil, Environmental, and Mechanical Engineering, Trento University, 38123 Trento, Italy
| | - Aarón Ángel Salas Sánchez
- DICAM—Department of Civil, Environmental, and Mechanical Engineering, Trento University, 38123 Trento, Italy
| | - Liwei Song
- Key Laboratory of Electronic Equipment Structure Design, Xidian University, Xi’an 710071, China (P.R.)
| | - Xinghua Li
- Key Laboratory of Electronic Equipment Structure Design, Xidian University, Xi’an 710071, China (P.R.)
| | - Wanye Xu
- Key Laboratory of Electronic Equipment Structure Design, Xidian University, Xi’an 710071, China (P.R.)
| | - Zijiao Fan
- Key Laboratory of Electronic Equipment Structure Design, Xidian University, Xi’an 710071, China (P.R.)
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Jiang H, Gao W, Jiang BL, Liu X, Jiang YT, Zhang LT, Zhang Y, Yan SN, Cao JJ, Lu J, Ma CX, Chang C, Zhang HP. Identification and validation of coding and non-coding RNAs involved in high-temperature-mediated seed dormancy in common wheat. Front Plant Sci 2023; 14:1107277. [PMID: 36818881 PMCID: PMC9929302 DOI: 10.3389/fpls.2023.1107277] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 01/16/2023] [Indexed: 06/18/2023]
Abstract
INTRODUCTION Seed dormancy (SD) significantly decreases under high temperature (HT) environment during seed maturation, resulting in pre-harvest sprouting (PHS) damage under prolonged rainfall and wet weather during wheat harvest. However, the molecular mechanism underlying HT-mediated SD remains elusiveSeed dormancy (SD) significantly decreases under high temperature (HT) environment during seed maturation, resulting in pre-harvest sprouting (PHS) damage under prolonged rainfall and wet weather during wheat harvest. However, the molecular mechanism underlying HT-mediated SD remains elusive. METHODS Here, the wheat landrace 'Waitoubai' with strong SD and PHS resistance was treated with HT from 21 to 35 days post anthesis (DPA). Then, the seeds under HT and normal temperature (NT) environments were collected at 21 DPA, 28 DPA, and 35 DPA and subjected to whole-transcriptome sequencing. RESULTS The phenotypic data showed that the seed germination percentage significantly increased, whereas SD decreased after HT treatment compared with NT, consistent with the results of previous studies. In total, 5128 mRNAs, 136 microRNAs (miRNAs), 273 long non-coding RNAs (lncRNAs), and 21 circularRNAs were found to be responsive to HT, and some of them were further verified through qRT-PCR. In particular, the known gibberellin (GA) biosynthesis gene TaGA20ox1 (TraesCS3D02G393900) was proved to be involved in HT-mediated dormancy by using the EMS-mutagenized wheat cultivar Jimai 22. Similarly, a novel gene TaCDPK21 (TraesCS7A02G267000) involved in the calcium signaling pathway was validated to be associated with HT-mediated dormancy by using the EMS mutant. Moreover, TaCDPK21 overexpression in Arabidopsis and functional complementarity tests supported the negative role of TaCDPK21 in SD. We also constructed a co-expression regulatory network based on differentially expressed mRNAs, miRNAs, and lncRNAs and found that a novel miR27319 was located at a key node of this regulatory network. Subsequently, using Arabidopsis and rice lines overexpressing miR27319 precursor or lacking miR27319 expression, we validated the positive role of miR27319 in SD and further preliminarily dissected the molecular mechanism of miR27319 underlying SD regulation through phytohormone abscisic acid and GA biosynthesis, catabolism, and signaling pathways. DISCUSSION These findings not only broaden our understanding of the complex regulatory network of HT-mediated dormancy but also provide new gene resources for improving wheat PHS resistance to minimize PHS damage by using the molecular pyramiding approach.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Cheng Chang
- *Correspondence: Cheng Chang, ; Hai-ping Zhang,
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12
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Yang J, Zhao D, Liu T, Zhang S, Wang W, Yan L, Gu JD. Growth and genome-based insights of Fe(III) reduction of the high-temperature and NaCl-tolerant Shewanella xiamenensis from Changqing oilfield of China. Front Microbiol 2022; 13:1028030. [PMID: 36545192 PMCID: PMC9760863 DOI: 10.3389/fmicb.2022.1028030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 11/17/2022] [Indexed: 12/09/2022] Open
Abstract
Introduction A facultative anaerobe bacterium Shewanella xiamenensis CQ-Y1 was isolated from the wastewater of Changqing oilfield in Shaanxi Province of China. Shewanella is the important dissimilatory metal-reducing bacteria. It exhibited a well potential application in biodegradation and bioremediation. Methods Genome sequencing, assembling and functional annotation were conducted to explore the genome information of CQ-Y1. The effect of temperatures and NaCl concentrations on the CQ-Y1 growth and Fe(III) reduction were investigated by UV visible spectrophotometry, SEM and XRD. Results Genomic analysis revealed its complete genome was a circular chromosome of 4,710,887 bp with a GC content of 46.50% and 4,110 CDSs genes, 86 tRNAs and 26 rRNAs. It contains genes encoding for Na+/H+ antiporter, K+/Cl- transporter, heat shock protein associated with NaCl and high-temperature resistance. The presence of genes related to flavin, Cytochrome c, siderophore, and other related proteins supported Fe(III) reduction. In addition, CQ-Y1 could survive at 10% NaCl (w/v) and 45°C, and temperature showed more pronounced effects than NaCl concentration on the bacterial growth. The maximum Fe(III) reduction ratio of CQ-Y1 reached 70.1% at 30°C without NaCl, and the reduction reaction remained active at 40°C with 3% NaCl (w/v). NaCl concentration was more effective than temperature on microbial Fe(III) reduction. And the reduction products under high temperature and high NaCl conditions were characterized as Fe3(PO4)2, FeCl2 and Fe(OH)2. Discussion Accordingly, a Fe(III) reduction mechanism of CQ-Y1 mediated by Cytochrome c and flavin was hypothesised. These findings could provide information for a better understanding of the origin and evolution of genomic and metabolic diversity of S. xiamenensis.
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Affiliation(s)
- Jiani Yang
- Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo-Waste in Cold Region, College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Dan Zhao
- Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo-Waste in Cold Region, College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Tao Liu
- Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo-Waste in Cold Region, College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, China,Key Laboratory of Low-Carbon Green Agriculture in Northeastern China, Ministry of Agriculture and Rural Affairs, Daqing, China
| | - Shuang Zhang
- Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo-Waste in Cold Region, College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Weidong Wang
- Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo-Waste in Cold Region, College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, China,Key Laboratory of Low-Carbon Green Agriculture in Northeastern China, Ministry of Agriculture and Rural Affairs, Daqing, China
| | - Lei Yan
- Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo-Waste in Cold Region, College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, China,*Correspondence: Lei Yan,
| | - Ji-Dong Gu
- Environmental Science and Engineering Research Group, Guangdong Technion – Israel Institute of Technology, Shantou, Guangdong, China,Guangdong Provincial Key Laboratory of Materials and Technologies for Energy Conversion, Guangdong Technion – Israel Institute of Technology, Shantou, Guangdong, China
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Ashfaq W, Brodie G, Fuentes S, Gupta D. Infrared Thermal Imaging and Morpho-Physiological Indices Used for Wheat Genotypes Screening under Drought and Heat Stress. Plants (Basel) 2022; 11:3269. [PMID: 36501309 PMCID: PMC9739054 DOI: 10.3390/plants11233269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 11/20/2022] [Accepted: 11/21/2022] [Indexed: 06/17/2023]
Abstract
Bread wheat, one of the largest broadacre crops, often experiences various environmental stresses during critical growth stages. Terminal drought and heat stress are the primary causes of wheat yield reduction worldwide. This study aimed to determine the drought and heat stress tolerance level of a group of 46 diverse wheat genotypes procured from the Australian Grains Gene Bank, Horsham, VIC Australia. Two separate drought stress (DS) and heat stress (HS) pot experiments were conducted in separate growth chambers. Ten days after complete anthesis, drought (40 ± 3% field capacity for 14 days) and heat stress (36/22 °C for three consecutive days) were induced. A significant genotype × environment interaction was observed and explained by various morpho-physiological traits, including rapid, non-destructive infrared thermal imaging for computational water stress indices. Except for a spike length in DS and harvest index in HS, the analysis of variance showed significant differences for all the recorded traits. Results showed grains per spike, grains weight per spike, spike fertility, delayed flag leaf senescence, and cooler canopy temperature were positively associated with grain yield under DS and HS. The flag leaf senescence and chlorophyll fluorescence were used to measure each genotype's stay-green phenotype and photosystem II activity after DS and HS. This study identified the top ten best and five lowest-performing genotypes from drought and heat stress experiments based on their overall performance. Results suggest that if heat or drought adaptive traits are brought together in a single genotype, grain yield can be improved further, particularly in a rainfed cropping environment.
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Affiliation(s)
- Waseem Ashfaq
- School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Melbourne, VIC 3010, Australia
| | - Graham Brodie
- College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia
| | - Sigfredo Fuentes
- School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Melbourne, VIC 3010, Australia
| | - Dorin Gupta
- School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Melbourne, VIC 3010, Australia
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Cui Y, Li X, Zhang T, Ding W, Yin J. Development of High-Temperature Wire-Grid Thin Film Strain Gauges. Sensors (Basel) 2022; 22:7595. [PMID: 36236695 PMCID: PMC9573541 DOI: 10.3390/s22197595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 10/02/2022] [Accepted: 10/03/2022] [Indexed: 06/16/2023]
Abstract
Aero-engine turbine stator blades are often used in harsh environments with high temperatures and high pressure and are prone to fatigue fractures. Real-time and accurate monitoring of blade surface stress and strain is critical to ensure safe operation. In this study, thin-film strain gauges (TFSGs) that can be used in high-temperature environments above 1000 °C were designed and fabricated using a PtRh6 thin film as the sensitive material. The hysteresis effect of the stress transfer upon establishing a thermo-mechanical coupling finite element model of the Inconel718 high-temperature nickel-based alloy equal-strength beam PtRh6 TFSGs was analyzed and the optimal combination of thin-film thickness and longitudinal grid length of wire-grid TFSGs was determined. In order to solve the problem of high-temperature insulation, the insulating properties of a single-layer Al2O3 insulating film, a single-layer ZrO2 insulating film, a double-layer Al2O3/ZrO2 composite insulating film, and a four-layer Al2O3/ZrO2/Al2O3/ZrO2 composite insulating film at high temperature were compared and studied using scanning electron microscopy to analyze the microscopic morphology and composition of the four insulating film structures. The results showed that the four-layer Al2O3/ZrO2/Al2O3/ZrO2 composite insulating film had the best insulating properties at high temperatures. On this basis, an Al2O3/ZrO2/Al2O3/ZrO2 composite insulating film, PtRh6 sensitive layer, and Al2O3 protective film were sequentially deposited on a high-temperature nickel-based alloy equal-strength beam using DC pulsed magnetron sputtering technology to obtain an Inconel718 high-temperature nickel-based alloy equal-strength beam PtRh6 TFSG. Its gauge factor (GF) and temperature coefficient of resistance (TCR) were calibrated, and the results showed that the sensor could be used in harsh environments of 1000 °C. The above results provide new ideas for measuring stress and strain in aerospace under high-temperature and high-pressure environments.
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Affiliation(s)
- Yunxian Cui
- School of Mechanical Engineering, Dalian Jiaotong University, Dalian 116028, China
| | - Xin Li
- School of Mechanical Engineering, Dalian Jiaotong University, Dalian 116028, China
| | - Tenglun Zhang
- Nanjing Kangni Mechanical & Electrical Co., Ltd., Nanjing 210013, China
| | - Wanyu Ding
- School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, China
| | - Junwei Yin
- School of Mechanical Engineering, Dalian Jiaotong University, Dalian 116028, China
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15
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Liu Q, Liu YT, Zhao C, Weng QS, Deng J, Hwang I, Jiang Y, Sun C, Li T, Xu W, Du K, Daali A, Xu GL, Amine K, Chen G. Conformal PEDOT Coating Enables Ultra-High-Voltage and High-Temperature Operation for Single-Crystal Ni-Rich Cathodes. ACS Nano 2022; 16:14527-14538. [PMID: 36098636 DOI: 10.1021/acsnano.2c04959] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Single-crystal Ni-rich Li[NixMnyCo1-x-y]O2 (SC-NMC) cathodes represent a promising approach to mitigate the cracking issue of conventional polycrystalline cathodes. However, many reported SC-NMC cathodes still suffer from unsatisfactory cycling stability, particularly under high charge cutoff voltage and/or elevated temperature. Herein, we report an ultraconformal and durable poly(3,4-ethylenedioxythiophene) (PEDOT) coating for SC-NMC cathodes using an oxidative chemical vapor deposition (oCVD) technique, which significantly improves their high-voltage (4.6 V) and high-temperature operation resiliency. The PEDOT coated SC LiNi0.83Mn0.1Co0.07O2 (SC-NMC83) delivers an impressive capacity retention rate of 96.7% and 89.5% after 100 and 200 cycles, respectively. Significantly, even after calendar aging at 45 °C and 4.6 V, the coated cathode can still retain 85.3% (in comparison with 59.6% for the bare one) of the initial capacity after 100 cycles at a 0.5 C rate. Synchrotron X-ray experiments and interface characterization collectively reveal that the conformal PEDOT coating not only effectively stabilizes the crystallographic structure and maintains the integrity of the particles but also significantly suppresses the electrolyte's corrosion, resulting in improved electrochemical/thermal stability. Our findings highlight the promise of an oCVD PEDOT coating for single-crystal Ni-rich cathodes to meet the grand challenge of high-energy batteries under extreme conditions.
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Affiliation(s)
- Qiang Liu
- Department of Mechanical Engineering and Research Institute for Smart Energy (RISE), The Hong Kong Polytechnic University, Kowloon, Hong Kong, China
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Yu-Tong Liu
- Department of Mechanical Engineering and Research Institute for Smart Energy (RISE), The Hong Kong Polytechnic University, Kowloon, Hong Kong, China
| | - Chen Zhao
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Qing-Song Weng
- Department of Mechanical Engineering and Research Institute for Smart Energy (RISE), The Hong Kong Polytechnic University, Kowloon, Hong Kong, China
- Songshan Lake Materials Laboratory, Dongguan 523808, China
| | - Junjing Deng
- X-ray Sciences Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Inhui Hwang
- X-ray Sciences Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Yi Jiang
- X-ray Sciences Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Chengjun Sun
- X-ray Sciences Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Tianyi Li
- X-ray Sciences Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Wenqian Xu
- X-ray Sciences Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Ke Du
- School of Metallurgy and Environment, Central South University, 932 Lushan South Road, Yuelu District, Changsha, Hunan 410017, China
| | - Amine Daali
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Gui-Liang Xu
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Khalil Amine
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Materials Science and Engineering, Stanford University, Stanford, California 94305, United States
- Materials Science and Nanoengineering, Mohammed VI Polytechnic University, Lot 660 Hay Moulay Rachid, Ben Guerir 43150, Morocco
| | - Guohua Chen
- Department of Mechanical Engineering and Research Institute for Smart Energy (RISE), The Hong Kong Polytechnic University, Kowloon, Hong Kong, China
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Zhou M, Yao Z, Zhao M, Fang Q, Ji X, Chen H, Zhao Y. Molecular Cloning and Expression Responses of Jarid2b to High-Temperature Treatment in Nile Tilapia ( Oreochromis niloticus). Genes (Basel) 2022; 13:1719. [PMID: 36292604 PMCID: PMC9602145 DOI: 10.3390/genes13101719] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 09/12/2022] [Accepted: 09/20/2022] [Indexed: 10/27/2023] Open
Abstract
Nile tilapia is a GSD + TE (Genetic Sex Determination + Temperature Effect) fish, and high-temperature treatment during critical thermosensitive periods (TSP) can induce the sex reversal of Nile tilapia genetic females, and brain transcriptomes have revealed the upregulation of Jarid2 (Jumonji and AT-rich domain containing 2) expression after 36 °C high-temperature treatment for 12 days during TSP. It was shown that JARID2 forms a complex with polycomb repressive complex 2 (PRC2) that catalyzed H3K27me3, which was strongly associated with transcriptional repression. In this study, Jarid2b was cloned and characterized in Nile tilapia, which was highly conserved among the analyzed fish species. The expression of Jarid2b was upregulated in the gonad of 21 dpf XX genetic females after 12-day high-temperature treatment and reached a similar level to that of males. Similar responses to high-temperature treatment also appeared in the brain, heart, liver, muscle, eye, and skin tissues. Interestingly, Jarid2b expression was only in response to high-temperature treatment, and not to 17α-methyltestosterone (MT) or letrozole treatments; although, these treatments can also induce the sex reversal of genetic Nile tilapia females. Further studies revealed that Jarid2b responded rapidly at the 8th hour after high-temperature treatment. Considering that JARID2 can recruit PRC2 and establish H3K27me3, we speculated that it might be an upstream gene participating in the regulation of Nile tilapia GSD + TE through regulating the H3K27 methylation level at the locus of many sex differentiation-related genes.
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Affiliation(s)
| | | | | | | | | | | | - Yan Zhao
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Taian 271000, China
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17
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Zhang T, Song X, Qi G, An B, Dong W, Zhao Y, Wang Z, Yi X, Yuan Z, Zhao Y, Sun L, Mao H. Investigation of High-Temperature Normal Infrared Spectral Emissivity of ZrO 2 Thermal Barrier Coating Artefacts by the Modified Integrated Blackbody Method. Materials (Basel) 2021; 15:235. [PMID: 35009381 PMCID: PMC8746090 DOI: 10.3390/ma15010235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 12/22/2021] [Accepted: 12/24/2021] [Indexed: 06/14/2023]
Abstract
Zirconium oxide (ZrO2) is widely used as the thermal barrier coating in turbines and engines. Accurate emissivity measurement of ZrO2 coating at high temperatures, especially above 1000 °C, plays a vital role in thermal modelling and radiation thermometry. However, it is an extremely challenging enterprise, and very few high temperature emissivity results with rigorously estimated uncertainties have been published to date. The key issue for accurately measuring the high temperature emissivity is maintaining a hot surface without reflection from the hot environment, and avoiding passive or active oxidation of material, which will modify the emissivity. In this paper, a novel modified integrated blackbody method is reported to measure the high temperature normal spectral emissivity of ZrO2 coating in the temperature range 1000 °C to 1200 °C and spectral range 8 μm to 14 μm. The results and the associated uncertainty of the measurement were estimated and a relative standard uncertainty better than 7% (k = 2) is achieved.
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Affiliation(s)
- Tong Zhang
- Department of Materials Science and Engineering, Beihang University, Beijing 100191, China; (T.Z.); (Y.Z.)
- Beijing Institute of Aeronautical Materials, Beijing 100195, China; (Z.W.); (X.Y.)
| | - Xuyao Song
- Beijing Aeronautical Technology Research Center, Beijing 102213, China; (G.Q.); (H.M.)
- National Institute of Metrology (NIM), Beijing 100029, China; (B.A.); (Z.Y.); (Y.Z.); (L.S.)
| | - Gongjin Qi
- Beijing Aeronautical Technology Research Center, Beijing 102213, China; (G.Q.); (H.M.)
| | - Baolin An
- National Institute of Metrology (NIM), Beijing 100029, China; (B.A.); (Z.Y.); (Y.Z.); (L.S.)
| | - Wei Dong
- National Institute of Metrology (NIM), Beijing 100029, China; (B.A.); (Z.Y.); (Y.Z.); (L.S.)
| | - Yan Zhao
- Department of Materials Science and Engineering, Beihang University, Beijing 100191, China; (T.Z.); (Y.Z.)
| | - Zhiyong Wang
- Beijing Institute of Aeronautical Materials, Beijing 100195, China; (Z.W.); (X.Y.)
| | - Xiaosu Yi
- Beijing Institute of Aeronautical Materials, Beijing 100195, China; (Z.W.); (X.Y.)
- Department of Composites, University of Nottingham Ningbo China, Ningbo 315048, China
| | - Zundong Yuan
- National Institute of Metrology (NIM), Beijing 100029, China; (B.A.); (Z.Y.); (Y.Z.); (L.S.)
| | - Yunlong Zhao
- National Institute of Metrology (NIM), Beijing 100029, China; (B.A.); (Z.Y.); (Y.Z.); (L.S.)
| | - Luge Sun
- National Institute of Metrology (NIM), Beijing 100029, China; (B.A.); (Z.Y.); (Y.Z.); (L.S.)
- Department of Energy and Environment, Beijing University of Civil Engineering and Architecture (BUCEA), Beijing 100191, China
| | - Hongyu Mao
- Beijing Aeronautical Technology Research Center, Beijing 102213, China; (G.Q.); (H.M.)
- National Institute of Metrology (NIM), Beijing 100029, China; (B.A.); (Z.Y.); (Y.Z.); (L.S.)
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Sodol KA, Kaczmarek Ł, Szer J, Miszczak S, Stegliński M. Impact of Elevated Temperatures on Strength Properties and Microstructure of Calcium Sulfoaluminate Paste. Materials (Basel) 2021; 14:6751. [PMID: 34832153 DOI: 10.3390/ma14226751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 10/28/2021] [Accepted: 11/05/2021] [Indexed: 11/17/2022]
Abstract
This article is motivated by civil fire safety. Fire-prevention engineering demands a wide range of information about building materials including alternative cements, for instance CSA-cement. Because of exposure of the cement-base material to a high temperature, its strength properties deteriorate due to dehydration connected with phase and microstructure changes. Previous research indicated that the main endothermic reaction of CSA-based composite, dehydration of ettringite, might be used as a cooling system for a metal structure during fire-load. This article examines visual assessment, microstructure, density, as well as flexural and compressive strength parameters of CSA-based composite after isothermal heating at temperatures from 23 °C to 800 °C. The results of SEM/EDS investigations showed that the calcium sulfoaluminate paste may start partially re-sintering above 600 °C. Mechanical tests revealed significant reduction of strength parameters but residual compressive strength was maintained in the whole temperature range e.g., 8 MPa at 800 °C. Additionally, visual assessment of the specimens indicated that it might be possible to predict the material temperature heating based on the specific surface color. These findings add to the evidence of general knowledge about CSA hydrates.
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Chen M, Fu Y, Mou Q, An J, Zhu X, Ahmed T, Zhang S, Basit F, Hu J, Guan Y. Spermidine Induces Expression of Stress Associated Proteins (SAPs) Genes and Protects Rice Seed from Heat Stress-Induced Damage during Grain-Filling. Antioxidants (Basel) 2021; 10:antiox10101544. [PMID: 34679679 PMCID: PMC8533277 DOI: 10.3390/antiox10101544] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 09/26/2021] [Accepted: 09/26/2021] [Indexed: 01/10/2023] Open
Abstract
Heat stress during seed maturation significantly reduced seed size and quality. Polyamines, especially spermidine (Spd), were reported to be closely related to seed development and plant heat tolerance. Stress-associated proteins (SAPs) also played a critical role in plant heat resistance, but the relationship between Spd and SAPs in improving rice tolerance to heat stress during grain filling has not been reported. Our results showed that the external spraying Spd (1.5 mM) significantly increased seed germination rate, germination index, vigor index and 1000-grain weight, significantly increased endogenous Spd, spermine (Spm) content and peroxidase activity; significantly reduced MDA content; and greatly alleviated the impact of heat stress on rice seed quality during grain filling stage as compared with high temperature control. OsSAP5 was the most upregulated expression induced by Spd, and may be mainly involved in the Spd-mediated enhancement of high-temperature resistance during rice seed development. Overexpression of OsSAP5 in Arabidopsis enhanced 1000-grain weight and seed heat resistance. Exogenous Spd alleviated the survival rate and seedling length, reduced MDA content, and upregulated the expression levels of SPDS and SPMS in Atsap4 mutant under high temperature during seed germination. In all, exogenous Spd alleviated the heat damage on seed quality during the grain filling stage and seed germination stage by improving endogenous Spd and Spm. OsSAP5, a key gene induced by Spd, might be involved in the rice heat resistance and seed quality in coordination with Spd and Spm.
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Affiliation(s)
- Min Chen
- Institute of Crop Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China; (M.C.); (Q.M.); (J.A.); (F.B.); (J.H.)
| | - Yuying Fu
- Institute of Horticulture, Anhui Academy of Agricultural Sciences, Hefei 230041, China;
| | - Qingshan Mou
- Institute of Crop Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China; (M.C.); (Q.M.); (J.A.); (F.B.); (J.H.)
| | - Jianyu An
- Institute of Crop Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China; (M.C.); (Q.M.); (J.A.); (F.B.); (J.H.)
| | - Xiaobo Zhu
- Hainan Research Institute, Zhejiang University, Sanya 572025, China;
| | - Temoor Ahmed
- State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China;
| | - Sheng Zhang
- Taizhou Agricultural Technology Extension Center, Taizhou 318000, China;
| | - Farwa Basit
- Institute of Crop Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China; (M.C.); (Q.M.); (J.A.); (F.B.); (J.H.)
| | - Jin Hu
- Institute of Crop Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China; (M.C.); (Q.M.); (J.A.); (F.B.); (J.H.)
- Hainan Research Institute, Zhejiang University, Sanya 572025, China;
| | - Yajing Guan
- Institute of Crop Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China; (M.C.); (Q.M.); (J.A.); (F.B.); (J.H.)
- Correspondence:
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20
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Zhang Q, Li X, Zhao J, Sun Z, Lu Y, Liu T, Zhang J. Effect of High-Temperature Nitridation and Buffer Layer on Semi-Polar (10-13) AlN Grown on Sapphire by HVPE. Micromachines (Basel) 2021; 12:1153. [PMID: 34683204 DOI: 10.3390/mi12101153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 09/22/2021] [Accepted: 09/23/2021] [Indexed: 12/21/2022]
Abstract
We have investigated the effect of high-temperature nitridation and buffer layer on the semi-polar aluminum nitride (AlN) films grown on sapphire by hydride vapor phase epitaxy (HVPE). It is found the high-temperature nitridation and buffer layer at 1300 °C are favorable for the formation of single (10–13) AlN film. Furthermore, the compressive stress of the (10–13) single-oriented AlN film is smaller than polycrystalline samples which have the low-temperature nitridation layer and buffer layer. On the one hand, the improvement of (10–13) AlN crystalline quality is possibly due to the high-temperature nitridation that promotes the coalescence of crystal grains. On the other hand, as the temperature of nitridation and buffer layer increases, the contents of N-Al-O and Al-O bonds in the AlN film are significantly reduced, resulting in an increase in the proportion of Al-N bonds.
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21
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Zhao H, Zhang H, Wang Z, Jiang X, Xie Y, Xu Z, Wang Y, Yang W. Chain-Elongated Ionic Liquid Electrolytes for Low Self-Discharge All-Solid-State Supercapacitors at High Temperature. ChemSusChem 2021; 14:3895-3903. [PMID: 34288541 DOI: 10.1002/cssc.202101294] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/12/2021] [Indexed: 06/13/2023]
Abstract
High power and good stability enable supercapacitors to work efficiently at high temperatures. However, the high-temperature-induced excessive ion transfer of the electrolyte would lead to severe self-discharge behavior, which has often been overlooked but can be highly detrimental. In this study, solid electrolytes consisting of poly(ethylene oxide) (PEO), bentonite clay, and ionic liquids (IL)-PEO-clay@[EMIM][BF4 ] (PCE), PEO-clay@[BMIM][BF4 ] (PCB), and PEO-clay@[HMIM][BF4 ] (PCH) lead to dramatic decreases in self-discharge when used in all-solid-state supercapacitors at high temperature of 70 °C, which correlate with chain elongation (i. e., [EMIM+ ]<[BMIM+ ]<[HMIM+ ]). Benefiting from both cation adsorption and high-temperature stabilization by bentonite clay, PCH-based supercapacitors (IL=[HMIM][BF4 ]) deliver an extremely low self-discharge rate, with only a 30.7 % voltage drop over 10 h at 70 °C (44.5 % for 38 h), which is much lower than that of traditional liquid supercapacitors (63.7 % drop over 10 h at 70 °C). This improvement in high-temperature self-discharge behavior is found to be from the decrease in diffusion-controlled faradaic process. Based on the longer-chain [HMIM+ ], soft-packaged supercapacitors exhibit a low self-discharge rate and work consistently at 70 °C. This chain-elongation strategy provides a new possibility for the suppression of self-discharge behavior in supercapacitors and further aids long-term energy storage by supercapacitors at high temperatures.
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Affiliation(s)
- Haibo Zhao
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, P. R. China
| | - Haitao Zhang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, P. R. China
| | - Zixing Wang
- Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology, Hunan University, Changsha, 410006, P. R. China
| | - Xinglin Jiang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, P. R. China
| | - Yanting Xie
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, P. R. China
| | - Zhong Xu
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, P. R. China
| | - Yuchen Wang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, P. R. China
| | - Weiqing Yang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, P. R. China
- State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, 610031, P. R. China
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22
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Xia P, Tan Y, Yang C, Zhou Z, Yun K. A Composite Fabry-Perot Interferometric Sensor with the Dual-Cavity Structure for Simultaneous Measurement of High Temperature and Strain. Sensors (Basel) 2021; 21:4989. [PMID: 34372225 DOI: 10.3390/s21154989] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/14/2021] [Accepted: 07/15/2021] [Indexed: 11/30/2022]
Abstract
In this paper, an optical fiber composite Fabry-Perot interferometric (CFPI) sensor capable of simultaneous measurement of high temperature and strain is presented. The CFPI sensor consists of a silica-cavity intrinsic Fabry-Perot interferometer (IFPI) cascading an air-cavity extrinsic Fabry-Perot interferometer (EFPI). The IFPI is constructed at the end of the transmission single-mode fiber (SMF) by splicing a short piece of photonic crystal fiber (PCF) to SMF and then the IFPI is inserted into a quartz capillary with a reflective surface to form a single-ended sliding EFPI. In such a configuration, the IFPI is only sensitive to temperature and the EFPI is sensitive to strain, which allows the achieving of temperature-compensated strain measurement. The experimental results show that the proposed sensor has good high-temperature resistance up to 1000 °C. Strain measurement under high temperatures is demonstrated for high-temperature suitability and stable strain response. Featuring intrinsic safety, compact structure and small size, the proposed CFPI sensor may find important applications in the high-temperature harsh environment.
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23
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Hulbert BS, McCormack SJ, Tseng KP, Kriven WM. Thermal expansion and phase transformation in the rare earth di-titanate (R 2Ti 2O 7) system. Acta Crystallogr B Struct Sci Cryst Eng Mater 2021; 77:397-407. [PMID: 34096522 DOI: 10.1107/s2052520621004479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 04/27/2021] [Indexed: 06/12/2023]
Abstract
Characterization of the thermal expansion in the rare earth di-titanates is important for their use in high-temperature structural and dielectric applications. Powder samples of the rare earth di-titanates R2Ti2O7 (or R2O3·2TiO2), where R = La, Pr, Nd, Sm, Gd, Dy, Er, Yb, Y, which crystallize in either the monoclinic or cubic phases, were synthesized for the first time by the solution-based steric entrapment method. The three-dimensional thermal expansions of these polycrystalline powder samples were measured by in situ synchrotron powder diffraction from 25°C to 1600°C in air, nearly 600°C higher than other in situ thermal expansion studies. The high temperatures in synchrotron experiments were achieved with a quadrupole lamp furnace. Neutron powder diffraction measured the monoclinic phases from 25°C to 1150°C. The La2Ti2O7 member of the rare earth di-titanates undergoes a monoclinic to orthorhombic displacive transition on heating, as shown by synchrotron diffraction in air at 885°C (864°C-904°C) and neutron diffraction at 874°C (841°C-894°C).
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Affiliation(s)
- Benjamin S Hulbert
- Materials Science and Engineering, University of Illinois at Urbana-Champaign, 1304 W Green St, Urbana, Illinois 61801, USA
| | - Scott J McCormack
- Materials Science and Engineering, University of Illinois at Urbana-Champaign, 1304 W Green St, Urbana, Illinois 61801, USA
| | - Kuo Pin Tseng
- Materials Science and Engineering, University of Illinois at Urbana-Champaign, 1304 W Green St, Urbana, Illinois 61801, USA
| | - Waltraud M Kriven
- Materials Science and Engineering, University of Illinois at Urbana-Champaign, 1304 W Green St, Urbana, Illinois 61801, USA
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24
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Feng F, Jia P, Qian J, Hu Z, An G, Qin L. High-Consistency Optical Fiber Fabry-Perot Pressure Sensor Based on Silicon MEMS Technology for High Temperature Environment. Micromachines (Basel) 2021; 12:mi12060623. [PMID: 34071225 PMCID: PMC8228703 DOI: 10.3390/mi12060623] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 05/13/2021] [Accepted: 05/25/2021] [Indexed: 11/16/2022]
Abstract
This paper proposes a high-temperature optical fiber Fabry–Perot pressure sensor based on the micro-electro-mechanical system (MEMS). The sensing structure of the sensor is composed of Pyrex glass wafer and silicon wafer manufactured by mass micromachining through anodic bonding process. The separated sensing head and the gold-plated fiber are welded together by a carbon dioxide laser to form a fiber-optic Fabry–Perot high temperature pressure sensor, which uses a four-layer bonding technology to improve the sealing performance of the Fabry–Perot cavity. The test system of high temperature pressure sensor is set up, and the experimental data obtained are calculated and analyzed. The experimental results showed that the maximum linearity of the optical fiber pressure sensor was 1% in the temperature range of 20–400 °C. The pressure sensor exhibited a high linear sensitivity of about 1.38 nm/KPa at room temperature at a range of pressures from approximarely 0-to 1 MPa. The structure of the sensor is characterized by high consistency, which makes the structure more compact and the manufacturing process more controllable.
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25
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Gao K, Wang B, Shirani A, Chang Q, Berman D. Macroscale Superlubricity Accomplished by Sb 2O 3-MSH/C Under High Temperature. Front Chem 2021; 9:667878. [PMID: 33937204 PMCID: PMC8083055 DOI: 10.3389/fchem.2021.667878] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 03/23/2021] [Indexed: 11/13/2022] Open
Abstract
Here, we report the high-temperature superlubricity phenomenon accomplished in coatings produced by burnishing powders of antimony trioxide (Sb2O3) and magnesium silicate hydroxide coated with carbon (MSH/C) onto the nickel superalloy substrate. The tribological analysis performed in an open-air experimental setup revealed that with the increase of testing temperature, the coefficient of friction (COF) of the coating gradually decreases, finally reaching the superlubricity regime (the COF of 0.008) at 300°C. The analysis of worn surfaces using in-situ Raman spectroscopy suggested the synergistic effect of the inner Sb2O3 adhesion layer and the top MSH/C layer, which do not only isolate the substrate from the direct exposure to sliding but also protect it from oxidation. The cross-sectional transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) results indicated the tribochemically-activated formation of an amorphous carbon layer on the surface of the coating during sliding. Formation of the film enables the high-temperature macroscale superlubricity behavior of the material system.
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Affiliation(s)
- Kai Gao
- State Key Laboratory of Tribology, Tsinghua University, Beijing, China.,School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing, China
| | - Bin Wang
- State Key Laboratory of Tribology, Tsinghua University, Beijing, China
| | - Asghar Shirani
- Materials Science and Engineering Department, University of North Texas, Denton, TX, United States
| | - Qiuying Chang
- School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing, China
| | - Diana Berman
- Materials Science and Engineering Department, University of North Texas, Denton, TX, United States
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26
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MacLeod SG, Errandonea D, Cox GA, Cynn H, Daisenberger D, Finnegan SE, McMahon MI, Munro KA, Popescu C, Storm CV. The phase diagram of Ti-6Al-4V at high-pressures and high-temperatures. J Phys Condens Matter 2021; 33:154001. [PMID: 33498030 DOI: 10.1088/1361-648x/abdffa] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 01/26/2021] [Indexed: 06/12/2023]
Abstract
We report results from a series of diamond-anvil-cell synchrotron x-ray diffraction and large-volume-press experiments, and calculations, to investigate the phase diagram of commercial polycrystalline high-strength Ti-6Al-4V alloy in pressure-temperature space. Up to ∼30 GPa and 886 K, Ti-6Al-4V is found to be stable in the hexagonal-close-packed, orαphase. The effect of temperature on the volume expansion and compressibility ofα-Ti-6Al-4V is modest. The martensiticα→ω(hexagonal) transition occurs at ∼30 GPa, with both phases coexisting until at ∼38-40 GPa the transition to theωphase is completed. Between 300 K and 844 K theα→ωtransition appears to be independent of temperature.ω-Ti-6Al-4V is stable to ∼91 GPa and 844 K, the highest combined pressure and temperature reached in these experiments. Pressure-volume-temperature equations-of-state for theαandωphases of Ti-6Al-4V are generated and found to be similar to pure Ti. A pronounced hysteresis is observed in theω-Ti-6Al-4V on decompression, with the hexagonal structure reverting back to theαphase at pressures below ∼9 GPa at room temperature, and at a higher pressure at elevated temperatures. Based on our data, we estimate the Ti-6Al-4Vα-β-ωtriple point to occur at ∼900 K and 30 GPa, in good agreement with our calculations.
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Affiliation(s)
- S G MacLeod
- AWE, Aldermaston, Reading, RG7 4PR, United Kingdom
- SUPA, School of Physics and Astronomy, and Centre for Science at Extreme Conditions, The University of Edinburgh, Peter Guthrie Tait Road, Edinburgh, EH9 3FD, United Kingdom
| | - D Errandonea
- Departmento de Física Aplicada-ICMUV, Universidad de Valencia, MALTA Consolider Team, Edificio de Investigación, C/Dr. Moliner 50, 46100 Burjassot, Valencia, Spain
| | - G A Cox
- AWE, Aldermaston, Reading, RG7 4PR, United Kingdom
| | - H Cynn
- Lawrence Livermore National Laboratory, Livermore, California 94550, United States of America
| | - D Daisenberger
- Diamond Light Source Ltd., Harwell Science & Innovation Campus, Didcot, Oxfordshire, OX11 0DE, United Kingdom
| | - S E Finnegan
- SUPA, School of Physics and Astronomy, and Centre for Science at Extreme Conditions, The University of Edinburgh, Peter Guthrie Tait Road, Edinburgh, EH9 3FD, United Kingdom
| | - M I McMahon
- SUPA, School of Physics and Astronomy, and Centre for Science at Extreme Conditions, The University of Edinburgh, Peter Guthrie Tait Road, Edinburgh, EH9 3FD, United Kingdom
| | - K A Munro
- SUPA, School of Physics and Astronomy, and Centre for Science at Extreme Conditions, The University of Edinburgh, Peter Guthrie Tait Road, Edinburgh, EH9 3FD, United Kingdom
| | - C Popescu
- CELLS-ALBA Synchrotron Light Facility, Cerdanyola del Vallès 08290, Barcelona, Spain
| | - C V Storm
- SUPA, School of Physics and Astronomy, and Centre for Science at Extreme Conditions, The University of Edinburgh, Peter Guthrie Tait Road, Edinburgh, EH9 3FD, United Kingdom
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Ren Z, Mujib SB, Singh G. High-Temperature Properties and Applications of Si-Based Polymer-Derived Ceramics: A Review. Materials (Basel) 2021; 14:ma14030614. [PMID: 33572765 PMCID: PMC7866281 DOI: 10.3390/ma14030614] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 01/20/2021] [Accepted: 01/26/2021] [Indexed: 11/16/2022]
Abstract
Ceramics derived from organic polymer precursors, which have exceptional mechanical and chemical properties that are stable up to temperatures slightly below 2000 °C, are referred to as polymer-derived ceramics (PDCs). These molecularly designed amorphous ceramics have the same high mechanical and chemical properties as conventional powder-based ceramics, but they also demonstrate improved oxidation resistance and creep resistance and low pyrolysis temperature. Since the early 1970s, PDCs have attracted widespread attention due to their unique microstructures, and the benefits of polymeric precursors for advanced manufacturing techniques. Depending on various doping elements, molecular configurations, and microstructures, PDCs may also be beneficial for electrochemical applications at elevated temperatures that exceed the applicability of other materials. However, the microstructural evolution, or the conversion, segregation, and decomposition of amorphous nanodomain structures, decreases the reliability of PDC products at temperatures above 1400 °C. This review investigates structure-related properties of PDC products at elevated temperatures close to or higher than 1000 °C, including manufacturing production, and challenges of high-temperature PDCs. Analysis and future outlook of high-temperature structural and electrical applications, such as fibers, ceramic matrix composites (CMCs), microelectromechanical systems (MEMSs), and sensors, within high-temperature regimes are also discussed.
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28
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Eisner SR, Chapin CA, Lu R, Yang Y, Gong S, Senesky DG. A Laterally Vibrating Lithium Niobate MEMS Resonator Array Operating at 500 °C in Air. Sensors (Basel) 2020; 21:s21010149. [PMID: 33383685 PMCID: PMC7795216 DOI: 10.3390/s21010149] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 12/16/2020] [Accepted: 12/23/2020] [Indexed: 11/16/2022]
Abstract
This paper reports the high-temperature characteristics of a laterally vibrating piezoelectric lithium niobate (LiNbO3; LN) MEMS resonator array up to 500 °C in air. After a high-temperature burn-in treatment, device quality factor (Q) was enhanced to 508 and the resonance shifted to a lower frequency and remained stable up to 500 °C. During subsequent in situ high-temperature testing, the resonant frequencies of two coupled shear horizontal (SH0) modes in the array were 87.36 MHz and 87.21 MHz at 25 °C and 84.56 MHz and 84.39 MHz at 500 °C, correspondingly, representing a −3% shift in frequency over the temperature range. Upon cooling to room temperature, the resonant frequency returned to 87.36 MHz, demonstrating the recoverability of device performance. The first- and second-order temperature coefficient of frequency (TCF) were found to be −95.27 ppm/°C and 57.5 ppb/°C2 for resonant mode A, and −95.43 ppm/°C and 55.8 ppb/°C2 for resonant mode B, respectively. The temperature-dependent quality factor and electromechanical coupling coefficient (kt2) were extracted and are reported. Device Q decreased to 334 and total kt2 increased to 12.40% after high-temperature exposure. This work supports the use of piezoelectric LN as a material platform for harsh environment radio-frequency (RF) resonant sensors (e.g., temperature and infrared) incorporated with high coupling acoustic readout.
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Affiliation(s)
- Savannah R. Eisner
- Department of Electrical Engineering, Stanford University, 350 Serra Mall, Stanford, CA 94305, USA
- Correspondence: ; Tel.: +1-908-619-6337
| | - Cailin A. Chapin
- Department of Aeronautics and Astronautics, Stanford University, 496 Lomita Mall, Stanford, CA 94305, USA; (C.A.C.); (D.G.S.)
| | - Ruochen Lu
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, 306 N Wright St, Urbana, IL 61801, USA; (R.L.); (Y.Y.); (S.G.)
| | - Yansong Yang
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, 306 N Wright St, Urbana, IL 61801, USA; (R.L.); (Y.Y.); (S.G.)
| | - Songbin Gong
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, 306 N Wright St, Urbana, IL 61801, USA; (R.L.); (Y.Y.); (S.G.)
| | - Debbie G. Senesky
- Department of Aeronautics and Astronautics, Stanford University, 496 Lomita Mall, Stanford, CA 94305, USA; (C.A.C.); (D.G.S.)
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29
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Wen J, Zhang R, Zhao Q, Liu W, Lu G, Hu X, Sun J, Wang R, Jiang X, Hu N, Liu J, Liu X, Xu C. Hydroxyapatite Nanowire-Reinforced Poly(ethylene oxide)-Based Polymer Solid Electrolyte for Application in High-Temperature Lithium Batteries. ACS Appl Mater Interfaces 2020; 12:54637-54643. [PMID: 33226206 DOI: 10.1021/acsami.0c15692] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Hybrid polymer electrolytes with excellent performance at high temperatures are very promising for developing solid-state lithium batteries for high-temperature applications. Herein, we use a self-supporting hydroxyapatite (HAP) nanowire membrane as a filler to improve the performance of a poly(ethylene oxide) (PEO)-based solid-state electrolyte. The HAP membrane could comprehensively improve the properties of the hybrid polymer electrolyte, including the higher room-temperature ionic conductivity of 1.05 × 10-5 S cm-1, broad electrochemical windows of up to 5.9 V at 60 °C and 4.9 V at 160 °C, and a high lithium-ion migration of 0.69. In addition, the LiFePO4//Li full battery with a solid electrolyte possesses good rate capability, cycling, and Coulomb efficiency at extreme high temperatures, that is, after 300 continuous charge and discharge cycles at 4 C rate, the discharge capacity retention rate is 77% and the Coulomb efficiency is 99%. The use of the flexible self-supporting HAP nanowire membrane to improve the PEO-based solid composite electrolyte provides new strategies and opportunities for developing rechargeable lithium batteries in extreme high-temperature applications.
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Affiliation(s)
- Jie Wen
- College of Aerospace Engineering, and College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
| | - Rui Zhang
- Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology, Hunan University, Changsha 410082, China
| | - Qiannan Zhao
- College of Aerospace Engineering, and College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
| | - Wei Liu
- College of Aerospace Engineering, and College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
| | - Guanjie Lu
- College of Aerospace Engineering, and College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
| | - Xiaolin Hu
- College of Aerospace Engineering, and College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
| | - Jing Sun
- Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China
| | - Ronghua Wang
- College of Aerospace Engineering, and College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
- Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China
| | - Xiaoping Jiang
- College of Aerospace Engineering, and College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
| | - Ning Hu
- College of Aerospace Engineering, and College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
| | - Jilei Liu
- Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology, Hunan University, Changsha 410082, China
| | - Xingjiang Liu
- Science and Technology on Power Sources Laboratory, Tianjin Institute of Power Sources, Tianjin 300384, China
| | - Chaohe Xu
- College of Aerospace Engineering, and College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
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Klaas D, Ottermann R, Dencker F, Wurz MC. Development, Characterisation and High-Temperature Suitability of Thin-Film Strain Gauges Directly Deposited with a New Sputter Coating System. Sensors (Basel) 2020; 20:s20113294. [PMID: 32531874 PMCID: PMC7308930 DOI: 10.3390/s20113294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 05/21/2020] [Accepted: 05/27/2020] [Indexed: 06/11/2023]
Abstract
New sensor and sensor manufacturing technologies are identified as a key factor for a successful digitalisation and are therefore economically important for manufacturers and industry. To address various requirements, a new sputter coating system has been invented at the Institute of Micro Production Technology. It enables the deposition of sensor systems directly onto technical surfaces. Compared to commercially available systems, it has no spatial limitations concerning the maximum coatable component size. Moreover, it enables a simultaneous structuring of deposited layers. Within this paper, characterisation techniques, results and challenges concerning directly deposited thin film strain gauges with the new sputter coating system are presented. Constantan (CuNiMn 54/45/1) and NiCr 80/20 are used as sensor materials. The initial resistance, temperature coefficient of resistance and gauge factor/k-factor of quarter-bridge strain gauges are characterised. The influence of a protective layer on sensor behaviour and layer adhesion is investigated as well. Moreover, the temperature compensation quality of directly deposited half-bridge strain gauges is evaluated, optimised with an external trimming technology and benchmarked against commercial strain gauges. Finally, the suitability for high-temperature strain measurement is investigated. Results show a maximum operation temperature of at least 400 °C, which is above the current state-of-the-art of commercial foil-based metal strain gauges.
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Crnjac A, Skukan N, Provatas G, Rodriguez-Ramos M, Pomorski M, Jakšić M. Electronic Properties of a Synthetic Single-Crystal Diamond Exposed to High Temperature and High Radiation. Materials (Basel) 2020; 13:ma13112473. [PMID: 32485829 PMCID: PMC7321309 DOI: 10.3390/ma13112473] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 05/19/2020] [Accepted: 05/26/2020] [Indexed: 11/17/2022]
Abstract
Diamond, as a wide band-gap semiconductor material, has the potential to be exploited under a wide range of extreme operating conditions, including those used for radiation detectors. The radiation tolerance of a single-crystal chemical vapor deposition (scCVD) diamond detector was therefore investigated while heating the device to elevated temperatures. In this way, operation under both high-temperature and high-radiation conditions could be tested simultaneously. To selectively introduce damage in small areas of the detector material, a 5 MeV scanning proton microbeam was used as damaging radiation. The charge collection efficiency (CCE) in the damaged areas was monitored using 2 MeV protons and the ion beam induced charge (IBIC) technique, indicating that the CCE decreases with increasing temperature. This decreasing trend saturates in the temperature range of approximately 660 K, after which CCE recovery is observed. These results suggest that the radiation hardness of diamond detectors deteriorates at elevated temperatures, despite the annealing effects that are also observed. It should be noted that the diamond detector investigated herein retained its very good spectroscopic properties even at an operation temperature of 725 K (≈2% for 2 MeV protons).
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Affiliation(s)
- Andreo Crnjac
- Division of Experimental Physics, Ruđer Bošković Institute, 10000 Zagreb, Croatia; (N.S.); (G.P.); (M.R.-R.); (M.J.)
- Correspondence: ; Tel.: +385-1-4561012
| | - Natko Skukan
- Division of Experimental Physics, Ruđer Bošković Institute, 10000 Zagreb, Croatia; (N.S.); (G.P.); (M.R.-R.); (M.J.)
| | - Georgios Provatas
- Division of Experimental Physics, Ruđer Bošković Institute, 10000 Zagreb, Croatia; (N.S.); (G.P.); (M.R.-R.); (M.J.)
| | - Mauricio Rodriguez-Ramos
- Division of Experimental Physics, Ruđer Bošković Institute, 10000 Zagreb, Croatia; (N.S.); (G.P.); (M.R.-R.); (M.J.)
| | - Michal Pomorski
- CEA-LIST, Diamond Sensors Laboratory, F91191 Gif-sur-Yvette, France;
| | - Milko Jakšić
- Division of Experimental Physics, Ruđer Bošković Institute, 10000 Zagreb, Croatia; (N.S.); (G.P.); (M.R.-R.); (M.J.)
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Cui G, Liu H, Li S, Gao G, Hassani M, Kou Z. Effect of Ni, W and Mo on the microstructure, phases and high-temperature sliding wear performance of CoCr matrix alloys. Sci Technol Adv Mater 2020; 21:229-241. [PMID: 32489482 PMCID: PMC7241466 DOI: 10.1080/14686996.2020.1752113] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 03/28/2020] [Accepted: 04/02/2020] [Indexed: 06/11/2023]
Abstract
CoCrNi, CoCrW and CoCrMo alloys were fabricated by powder metallurgy technology. The effect of nickel, tungsten and molybdenum, as alloying elements, on the microstructure, phase, mechanical and high-temperature tribological properties of CoCr matrix alloys were systematically studied. The wear and friction behaviors were investigated from room temperature (23 °C) to 1000 °C. The alloys were found to contain different ratios of γ(fcc) and ε(hcp) phases; Ni stabilized γ(fcc), while W and Mo stabilized ε(hcp). The hardness measurements showed that the strengthening effect increased with the addition of Ni, W, and Mo, respectively. Addition of Mo and W resulted in the lowest and highest friction coefficients with the addition of Ni resulting in a friction coefficient between the two. The wear and friction behaviors of the three alloys depended on the phase, alloying elements and oxidation from room temperature to 1000 °C. Coefficients of friction of the alloys were not directly correlated with the wear rates. CoCr matrix alloys reinforced with Mo showed the highest hardness and the best high-temperature tribological performance. It was attributed to the high hardness, stable oxide film, and in situ formed high-temperature solid lubricants. With an increase in temperature, the wear mechanism was found to change from abrasive wear to oxidative wear.
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Affiliation(s)
- Gongjun Cui
- College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan, PR China
- National-Local Joint Engineering Laboratory for Mine Fluid Control, Taiyuan, PR China
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY, USA
| | - Huiqiang Liu
- College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan, PR China
- National-Local Joint Engineering Laboratory for Mine Fluid Control, Taiyuan, PR China
| | - Sai Li
- College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan, PR China
- National-Local Joint Engineering Laboratory for Mine Fluid Control, Taiyuan, PR China
| | - Guijun Gao
- College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan, PR China
- National-Local Joint Engineering Laboratory for Mine Fluid Control, Taiyuan, PR China
| | - Mostafa Hassani
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY, USA
| | - Ziming Kou
- College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan, PR China
- National-Local Joint Engineering Laboratory for Mine Fluid Control, Taiyuan, PR China
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Li H, Lv K, Huang X, Lu Z, Dong X. The Synthesis of Polymeric Nanospheres and the Application as High-Temperature Nano-Plugging Agent in Water Based Drilling Fluid. Front Chem 2020; 8:247. [PMID: 32373580 PMCID: PMC7179661 DOI: 10.3389/fchem.2020.00247] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 03/16/2020] [Indexed: 11/14/2022] Open
Abstract
Nanoscale plugging agent is essential to wellbore stability of troublesome shale formation in the drilling of oil and gas wells. In this paper, polymeric nanospheres (PNS) with a double cross-linked structure were synthesized using monomers of styrene (ST), acrylamide (AM), 2-Acrylamide- 2-methylpropanesulfonic acid (AMPS), and dimethyl diallyl ammonium chloride (DMDAAC). PNS were characterized by FTIR, SEM and TGA. The plugging performance of PNS was analyzed using nitrogen adsorption experiments and SEM. And compatibility with water based drilling fluid (WBM) was studied. Experimental results showed that PNS had a mean particle size of 133 nm, and could retain about half of the original size after high temperature treatment under 150-200°C. TGA showed that the initial decomposition temperature of PNS is around 315°C. After plugging by PNS, both the specific surface area and pore volume of the shale cuttings decreased substantially compared with those of shale samples treated with water. Thus, PNS was thermal stable in WBM under high temperature and could effectively plug shale pores. Besides, PNS was beneficial to reduce both API and HTHP fluid loss of WBM.
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Affiliation(s)
- He Li
- Key Laboratory of Unconventional Oil & Gas Development, China University of Petroleum (East China), Ministry of Education, Qingdao, China
- School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, China
| | - Kaihe Lv
- Key Laboratory of Unconventional Oil & Gas Development, China University of Petroleum (East China), Ministry of Education, Qingdao, China
- School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, China
| | - Xianbin Huang
- Key Laboratory of Unconventional Oil & Gas Development, China University of Petroleum (East China), Ministry of Education, Qingdao, China
- School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, China
| | - Zhen Lu
- Key Laboratory of Unconventional Oil & Gas Development, China University of Petroleum (East China), Ministry of Education, Qingdao, China
- School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, China
| | - Xiaodong Dong
- Key Laboratory of Unconventional Oil & Gas Development, China University of Petroleum (East China), Ministry of Education, Qingdao, China
- School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, China
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Jung J, Lee JY, Lee H, Kim H. Predicted Future Mortality Attributed to Increases in Temperature and PM 10 Concentration under Representative Concentration Pathway Scenarios. Int J Environ Res Public Health 2020; 17:E2600. [PMID: 32290146 DOI: 10.3390/ijerph17072600] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 04/07/2020] [Accepted: 04/07/2020] [Indexed: 12/15/2022]
Abstract
As climate change progresses, understanding the impact on human health associated with the temperature and air pollutants has been paramount. However, the predicted effect on temperature associated with particulate matter (PM10) is not well understood due to the difficulty in predicting the local and regional PM10. We compared temperature-attributable mortality for the baseline (2003-2012), 2030s (2026-2035), 2050s (2046-2055), and 2080s (2076-2085) based on a distributed lag non-linear model by simultaneously considering assumed levels of PM10 on historical and projected temperatures under representative concentration pathway (RCP) scenarios. The considered projected PM10 concentrations of 35, 50, 65, 80, and 95 μg/m3 were based on historical concentration quantiles. Our findings confirmed greater temperature-attributable risks at PM10 concentrations above 65 μg/m3 due to the modification effect of the pollutants on temperature. In addition, this association between temperature and PM10 was higher under RCP8.5 than RCP4.5. We also confirmed regional heterogeneity in temperature-attributable deaths by considering PM10 concentrations in South Korea with higher risks in heavily populated areas. These results demonstrated that the modification association of air pollutants on health burdens attributable to increasing temperatures should be considered by researchers and policy makers.
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Dai L, Hu H, Jiang J, Sun W, Li H, Wang M, Vallianatos F, Saltas V. An Overview of the Experimental Studies on the Electrical Conductivity of Major Minerals in the Upper Mantle and Transition Zone. Materials (Basel) 2020; 13:E408. [PMID: 31952310 DOI: 10.3390/ma13020408] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 12/31/2019] [Accepted: 01/08/2020] [Indexed: 11/17/2022]
Abstract
In this paper, we present the recent progress in the experimental studies of the electrical conductivity of dominant nominally anhydrous minerals in the upper mantle and mantle transition zone of Earth, namely, olivine, pyroxene, garnet, wadsleyite and ringwoodite. The main influence factors, such as temperature, pressure, water content, oxygen fugacity, and anisotropy are discussed in detail. The dominant conduction mechanisms of Fe-bearing silicate minerals involve the iron-related small polaron with a relatively large activation enthalpy and the hydrogen-related defect with lower activation enthalpy. Specifically, we mainly focus on the variation of oxygen fugacity on the electrical conductivity of anhydrous and hydrous mantle minerals, which exhibit clearly different charge transport processes. In representative temperature and pressure environments, the hydrogen of nominally anhydrous minerals can tremendously enhance the electrical conductivity of the upper mantle and transition zone, and the influence of trace structural water (or hydrogen) is substantial. In combination with the geophysical data of magnetotelluric surveys, the laboratory-based electrical conductivity measurements can provide significant constraints to the water distribution in Earth’s interior.
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Karakashov B, Fierro V, Mathieu S, Gadonneix P, Medjahdi G, Celzard A. Structural Characterisation and Chemical Stability of Commercial Fibrous Carbons in Molten Lithium Salts. Materials (Basel) 2019; 12:ma12244232. [PMID: 31861115 PMCID: PMC6947428 DOI: 10.3390/ma12244232] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 11/23/2019] [Accepted: 12/13/2019] [Indexed: 11/16/2022]
Abstract
The growing trend towards sustainable energy production, while intermittent, can meet all the criteria of energy demand through the use and development of high-performance thermal energy storage (TES). In this context, high-temperature hybrid TES systems, based upon the combination of fibrous carbon hosts and peritectic phase change materials (PCMs), are seen as promising solutions. One of the main conditions for the operational viability of hybrid TES is the chemical inertness between the components of the system. Thus, the chemical stability and compatibility of several commercial carbon felts (CFs) and molten lithium salts are discussed in the present study. Commercial CFs were characterised by elemental analysis, X-ray diffraction (XRD) and Raman spectroscopy before being tested in molten lithium salts: LiOH, LiBr, and the LiOH/LiBr peritectic mixture defined as our PCM of interest. The chemical stability was evaluated by gravimetry, gas adsorption and scanning electron microscopy (SEM). Among the studied CFs, the materials with the highest carbon purity and the most graphitic structure showed improved stability in contact with molten lithium salts, even under the most severe test conditions (750 °C). The application of the Arrhenius law allowed calculating the activation energy (in the range of 116 to 165 kJ mol-1), and estimating the potential stability of CFs at actual application temperatures. These results confirmed the applicability of CFs as porous hosts for stabilising peritectic PCMs based on molten lithium salts.
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Affiliation(s)
- Blagoj Karakashov
- Institut Jean Lamour, Université de Lorraine, CNRS, IJL, F-88000 Epinal, France; (B.K.); (V.F.); (P.G.)
| | - Vanessa Fierro
- Institut Jean Lamour, Université de Lorraine, CNRS, IJL, F-88000 Epinal, France; (B.K.); (V.F.); (P.G.)
| | - Sandrine Mathieu
- Institut Jean Lamour, Université de Lorraine, CNRS, IJL, F-54000 Nancy, France; (S.M.); (G.M.)
| | - Philippe Gadonneix
- Institut Jean Lamour, Université de Lorraine, CNRS, IJL, F-88000 Epinal, France; (B.K.); (V.F.); (P.G.)
| | - Ghouti Medjahdi
- Institut Jean Lamour, Université de Lorraine, CNRS, IJL, F-54000 Nancy, France; (S.M.); (G.M.)
| | - Alain Celzard
- Institut Jean Lamour, Université de Lorraine, CNRS, IJL, F-88000 Epinal, France; (B.K.); (V.F.); (P.G.)
- Correspondence: ; Tel.: +33-372-74-96-14
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Weidner A, Ranglack-Klemm Y, Zienert T, Aneziris CG, Biermann H. Mechanical High-Temperature Properties and Damage Behavior of Coarse-Grained Alumina Refractory Metal Composites. Materials (Basel) 2019; 12:E3927. [PMID: 31783591 PMCID: PMC6926657 DOI: 10.3390/ma12233927] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 11/22/2019] [Accepted: 11/24/2019] [Indexed: 12/01/2022]
Abstract
The present study provides the mechanical properties of a new generation of refractory composites based on coarse-grained Al2O3 ceramic and the refractory metals Nb and Ta. The materials were manufactured by refractory castable technology and subsequently sintered at 1600 °C for 4 h. The mechanical properties and the damage behavior of the coarse-grained refractory composites were investigated at high temperatures between 1300 and 1500 °C. The compressive strength is given as a function of temperature for materials with two different volume fractions of the refractory metals Ta and Nb. It is demonstrated that these refractory composites do not fail in a completely brittle manner in the studied temperature range. The compressive strength for all materials significantly decreases with increasing temperature. Failure occurred due to the formation of cracks along the ceramic/metal interfaces of the coarse-grained Al2O3 particles. In microstructural observations of sintered specimens, the formation of tantalates, as well as niobium oxides, were observed. The lower compressive strength of coarse-grained Nb-Al2O3 refractory composites compared to Ta-Al2O3 is probably attributed to the formation of niobium oxides. The formation of tantalates, however, seems to have no detrimental effect on compressive strength.
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Affiliation(s)
- Anja Weidner
- Institute of Materials Engineering, Technische Universität Bergakademie Freiberg, 09599 Freiberg, Germany; (Y.R.-K.); (H.B.)
| | - Yvonne Ranglack-Klemm
- Institute of Materials Engineering, Technische Universität Bergakademie Freiberg, 09599 Freiberg, Germany; (Y.R.-K.); (H.B.)
| | - Tilo Zienert
- Institute of Ceramic, Glass and Construction Materials, Technische Universität Bergakademie Freiberg, 09599 Freiberg, Germany; (T.Z.); (C.G.A.)
| | - Christos G. Aneziris
- Institute of Ceramic, Glass and Construction Materials, Technische Universität Bergakademie Freiberg, 09599 Freiberg, Germany; (T.Z.); (C.G.A.)
| | - Horst Biermann
- Institute of Materials Engineering, Technische Universität Bergakademie Freiberg, 09599 Freiberg, Germany; (Y.R.-K.); (H.B.)
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Jin X, Tan H, Wu Z, Liang J, Miao W, Lian CS, Wang J, Liu K, Wei H, Feng C, Liu P, Wei Y, Li Q, Wang J, Liu L, Li X, Fan S, Duan W, Jiang K. Continuous, Ultra-lightweight, and Multipurpose Super-aligned Carbon Nanotube Tapes Viable over a Wide Range of Temperatures. Nano Lett 2019; 19:6756-6764. [PMID: 31203631 DOI: 10.1021/acs.nanolett.9b01629] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In extreme environments, such as at ultrahigh or ultralow temperatures, the amount of tape used should be minimal so as to reduce system contamination and unwanted residues. However, tapes made from conventional materials typically lose their adhesiveness or leave residues difficult to remove under such conditions. Thus, the development of more versatile, lightweight, and easily removable tapes for applications in such extreme environments has received considerable attention. Here, we report that horizontally superaligned carbon nanotube (SACNT) tapes can be used to provide perfect van der Waals (vdW) interface contacts over a wide range of temperatures (from -196 to 1000 °C), yielding outstanding adhesiveness with specific adhesion strengths up to ∼1.1 N/μg. With a surface density of only 0.5-5 μg/cm2, hundreds of times lighter than the vertically aligned CNT adhesives, the SACNT tapes can be cost-effectively provided in hundreds of meters. They have multipurpose adhesive abilities for versatile materials and are also easily separated from samples even after exposure to extreme temperature regimes. First-principles calculations confirm the mechanism of vdW adhesion and reveal that ultraflat and nanometer-thick SACNT tapes may yield far greater adhesive abilities. These SACNT tapes show great potential for use in mechanical bonding, electrical bonding, and thermal dissipation in electronic devices.
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Affiliation(s)
- Xiang Jin
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics and Tsinghua-Foxconn Nanotechnology Research Center , Tsinghua University , Beijing 100084 , China
| | - Hengxin Tan
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics and Tsinghua-Foxconn Nanotechnology Research Center , Tsinghua University , Beijing 100084 , China
| | - Zipeng Wu
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics and Tsinghua-Foxconn Nanotechnology Research Center , Tsinghua University , Beijing 100084 , China
| | - Jiecun Liang
- School of Aerospace Engineering , Tsinghua University , Beijing 100084 , China
| | - Wentao Miao
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics and Tsinghua-Foxconn Nanotechnology Research Center , Tsinghua University , Beijing 100084 , China
| | - Chao-Sheng Lian
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics and Tsinghua-Foxconn Nanotechnology Research Center , Tsinghua University , Beijing 100084 , China
- International Laboratory for Quantum Functional Materials of Henan and School of Physics and Engineering , Zhengzhou University , Zhengzhou 450001 , China
| | - Jiangtao Wang
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics and Tsinghua-Foxconn Nanotechnology Research Center , Tsinghua University , Beijing 100084 , China
| | - Kai Liu
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering , Tsinghua University , Beijing 100084 , China
| | - Haoming Wei
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics and Tsinghua-Foxconn Nanotechnology Research Center , Tsinghua University , Beijing 100084 , China
| | - Chen Feng
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics and Tsinghua-Foxconn Nanotechnology Research Center , Tsinghua University , Beijing 100084 , China
| | - Peng Liu
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics and Tsinghua-Foxconn Nanotechnology Research Center , Tsinghua University , Beijing 100084 , China
| | - Yang Wei
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics and Tsinghua-Foxconn Nanotechnology Research Center , Tsinghua University , Beijing 100084 , China
| | - Qunqing Li
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics and Tsinghua-Foxconn Nanotechnology Research Center , Tsinghua University , Beijing 100084 , China
| | - Jiaping Wang
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics and Tsinghua-Foxconn Nanotechnology Research Center , Tsinghua University , Beijing 100084 , China
| | - Liang Liu
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics and Tsinghua-Foxconn Nanotechnology Research Center , Tsinghua University , Beijing 100084 , China
| | - Xide Li
- School of Aerospace Engineering , Tsinghua University , Beijing 100084 , China
| | - Shoushan Fan
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics and Tsinghua-Foxconn Nanotechnology Research Center , Tsinghua University , Beijing 100084 , China
| | - Wenhui Duan
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics and Tsinghua-Foxconn Nanotechnology Research Center , Tsinghua University , Beijing 100084 , China
| | - Kaili Jiang
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics and Tsinghua-Foxconn Nanotechnology Research Center , Tsinghua University , Beijing 100084 , China
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Lyu X, Xu Y, Xu Q, Yu Y. Axial Compression Performance of Square Thin Walled Concrete-Filled Steel Tube Stub Columns with Reinforcement Stiffener under Constant High-Temperature. Materials (Basel) 2019; 12:ma12071098. [PMID: 30987064 PMCID: PMC6480070 DOI: 10.3390/ma12071098] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 03/30/2019] [Accepted: 04/01/2019] [Indexed: 11/16/2022]
Abstract
This study investigated the axial compressive performance of six thin-walled concrete-filled steel tube (CFST) square column specimens with steel bar stiffeners and two non-stiffened specimens at constant temperatures of 20 °C, 100 °C, 200 °C, 400 °C, 600 °C and 800 °C. The mechanical properties of the specimens at different temperatures were analyzed in terms of the ultimate bearing capacity, failure mode, and load-displacement curve. The experiment results show that at high temperature, even though the mechanical properties of the specimens declined, leading to a decrease of the ultimate bearing capacity, the ductility and deformation capacity of the specimens improved inversely. Based on finite element software ABAQUS, numerical models were developed to calculate both temperature and mechanical fields, the results of which were in good agreement with experimental results. Then, the stress mechanism of eight specimens was analyzed using established numerical models. The analysis results show that with the increase of temperature, the longitudinal stress gradient of the concrete in the specimen column increases while the stress value decreases. The lateral restraint of the stiffeners is capable of restraining the steel outer buckling and enhancing the restraint effect on the concrete.
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Affiliation(s)
- Xuetao Lyu
- Transportation and Civil Buildings College, Foshan University, Foshan 528000, China.
- College of Civil Engineering, Liaoning Technical University, Fuxin 123000, China.
| | - Yang Xu
- College of Civil Engineering, Liaoning Technical University, Fuxin 123000, China.
| | - Qian Xu
- College of Civil Engineering, Liaoning Technical University, Fuxin 123000, China.
| | - Yang Yu
- School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia.
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Brachmann E, Seifert M, Neumann N, Alshwawreh N, Uhlemann M, Menzel SB, Acker J, Herold S, Hoffmann V, Gemming T. Electroless-Deposited Platinum Antennas for Wireless Surface Acoustic Wave Sensors. Materials (Basel) 2019; 12:E1002. [PMID: 30934663 DOI: 10.3390/ma12071002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 03/13/2019] [Accepted: 03/15/2019] [Indexed: 11/30/2022]
Abstract
In an effort to develop a cost-efficient technology for wireless high-temperature surface acoustic wave sensors, this study presents an evaluation of a combined method that integrates physical vapor deposition with electroless deposition for the fabrication of platinum-based planar antennas. The proposed manufacturing process becomes attractive for narrow, thick, and sparse metallizations for antennas in the MHz to GHz frequency range. In detail, narrow platinum-based lines of a width down to 40 μm were electroless-deposited on γ-Al2O3 substrates using different seed layers. At first, the electrolyte chemistry was optimized to obtain the highest deposition rate. Films with various thickness were prepared and the electrical resistivity, microstructure, and chemical composition in the as-prepared state and after annealing at temperatures up to 1100 ∘C were evaluated. Using these material parameters, the antenna was simulated with an electromagnetic full-wave simulation tool and then fabricated. The electrical parameters, including the S-parameters of the antenna, were measured. The agreement between the simulated and the realized antenna is then discussed.
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Guo Q, Lu F, Tan Q, Zhou T, Xiong J, Zhang W. Al₂O₃-Based a-IGZO Schottky Diodes for Temperature Sensing. Sensors (Basel) 2019; 19:E224. [PMID: 30634474 DOI: 10.3390/s19020224] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 12/29/2018] [Accepted: 01/04/2019] [Indexed: 11/18/2022]
Abstract
High-temperature electronic devices and sensors that operate in harsh environments, especially high-temperature environments, have attracted widespread attention. An Al2O3 based a-IGZO (amorphous indium-gallium-zinc-oxide) Schottky diode sensor is proposed. The diodes are tested at 21–400 °C, and the design and fabrication process of the Schottky diodes and the testing methods are introduced. Herein, a series of factors influencing diode performance are studied to obtain the relationship between diode ideal factor n, the barrier height ФB, and temperature. The sensitivity of the diode sensors is 0.81 mV/°C, 1.37 mV/°C, and 1.59 mV/°C when the forward current density of the diode is 1 × 10−5 A/cm2, 1 × 10−4 A/cm2, and 1 × 10−3 A/cm2, respectively.
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Seifert M, Rane GK, Kirbus B, Menzel SB, Gemming T. Surface Effects and Challenges for Application of Piezoelectric Langasite Substrates in Surface Acoustic Wave Devices Caused by High Temperature Annealing under High Vacuum. Materials (Basel) 2015; 8:8868-76. [PMID: 28793752 DOI: 10.3390/ma8125497] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 12/08/2015] [Accepted: 12/14/2015] [Indexed: 11/17/2022]
Abstract
Substrate materials that are high-temperature stable are essential for sensor devices which are applied at high temperatures. Although langasite is suggested as such a material, severe O and Ga diffusion into an O-affine deposited film was observed during annealing at high temperatures under vacuum conditions, leading to a damage of the metallization as well as a change of the properties of the substrate and finally to a failure of the device. Therefore, annealing of bare LGS (La3Ga5SiO14) substrates at 800 ∘C under high vacuum conditions is performed to analyze whether this pretreatment improves the suitability and stability of this material for high temperature applications in vacuum. To reveal the influence of the pretreatment on the subsequently deposited metallization, RuAl thin films are used as they are known to oxidize on LGS at high temperatures. A local study of the pretreated and metallized substrates using transmission electron microscopy reveals strong modification of the substrate surface. Micro cracks are visible. The composition of the substrate is strongly altered at those regions. Severe challenges for the application of LGS substrates under high-temperature vacuum conditions arise from these substrate damages, revealing that the pretreatment does not improve the applicability.
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Liermann HP, Konôpková Z, Morgenroth W, Glazyrin K, Bednarčik J, McBride EE, Petitgirard S, Delitz JT, Wendt M, Bican Y, Ehnes A, Schwark I, Rothkirch A, Tischer M, Heuer J, Schulte-Schrepping H, Kracht T, Franz H. The Extreme Conditions Beamline P02.2 and the Extreme Conditions Science Infrastructure at PETRA III. J Synchrotron Radiat 2015; 22:908-24. [PMID: 26134794 PMCID: PMC4489534 DOI: 10.1107/s1600577515005937] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Accepted: 03/24/2015] [Indexed: 05/18/2023]
Abstract
A detailed description is presented of the Extreme Conditions Beamline P02.2 for micro X-ray diffraction studies of matter at simultaneous high pressure and high/low temperatures at PETRA III, in Hamburg, Germany. This includes performance of the X-ray optics and instrumental resolution as well as an overview of the different sample environments available for high-pressure studies in the diamond anvil cell. Particularly emphasized are the high-brilliance and high-energy X-ray diffraction capabilities of the beamline in conjunction with the use of fast area detectors to conduct time-resolved compression studies in the millisecond time regime. Finally, the current capability of the Extreme Conditions Science Infrastructure to support high-pressure research at the Extreme Conditions Beamline and other PETRA III beamlines is described.
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Affiliation(s)
- H.-P. Liermann
- Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany
- Correspondence e-mail:
| | - Z. Konôpková
- Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany
| | - W. Morgenroth
- Department of Crystallography, University of Frankfurt, Frankfurt, Germany
| | - K. Glazyrin
- Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany
| | - J. Bednarčik
- Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany
| | - E. E. McBride
- Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany
| | - S. Petitgirard
- Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany
- Bayrisches Geoinstitut, University of Bayreuth, Bayreuth, Germany
| | - J. T. Delitz
- Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany
| | - M. Wendt
- Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany
| | - Y. Bican
- Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany
| | - A. Ehnes
- Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany
| | - I. Schwark
- Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany
| | - A. Rothkirch
- Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany
| | - M. Tischer
- Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany
| | - J. Heuer
- Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany
| | | | - T. Kracht
- Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany
| | - H. Franz
- Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany
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Liu C, Ju J, Ma J, Zheng Y, Jiang L. Directional drop transport achieved on high-temperature anisotropic wetting surfaces. Adv Mater 2014; 26:6086-6091. [PMID: 25066230 DOI: 10.1002/adma.201401985] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Revised: 06/21/2014] [Indexed: 06/03/2023]
Abstract
The surfaces of ambient-temperature superhydrophilic tilting silicon nanowires (TSNWs) exhibit an anisotropic wetting performance at high temperature and a deposited drop moves directionally on this surface. A vapor film forming beneath the drop after spreading reduces the surface friction and the heat transfer efficiency between the drop and the surface, so the drop moves with a constant speed and little mass loss.
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Affiliation(s)
- Chengcheng Liu
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing, 100191, P. R. China
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Zou R, Zhang Z, Liu Q, Hu J, Sang L, Liao M, Zhang W. High detectivity solar-blind high-temperature deep-ultraviolet photodetector based on multi-layered (l00) facet-oriented β-Ga₂O₃ nanobelts. Small 2014; 10:1848-56. [PMID: 24520013 DOI: 10.1002/smll.201302705] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2013] [Revised: 10/02/2013] [Indexed: 05/16/2023]
Abstract
Fabrication of a high-temperature deep-ultraviolet photodetector working in the solar-blind spectrum range (190-280 nm) is a challenge due to the degradation in the dark current and photoresponse properties. Herein, β-Ga2O3 multi-layered nanobelts with (l00) facet-oriented were synthesized, and were demonstrated for the first time to possess excellent mechanical, electrical properties and stability at a high temperature inside a TEM studies. As-fabricated DUV solar-blind photodetectors using (l00) facet-oriented β-Ga2O3 multi-layered nanobelts demonstrated enhanced photodetective performances, that is, high sensitivity, high signal-to-noise ratio, high spectral selectivity, high speed, and high stability, importantly, at a temperature as high as 433 K, which are comparable to other reported semiconducting nanomaterial photodetectors. In particular, the characteristics of the photoresponsivity of the β-Ga2O3 nanobelt devices include a high photoexcited current (>21 nA), an ultralow dark current (below the detection limit of 10(-14) A), a fast time response (<0.3 s), a high R(λ) (≈851 A/W), and a high EQE (~4.2 × 10(3)). The present fabricated facet-oriented β-Ga2O3 multi-layered nanobelt based devices will find practical applications in photodetectors or optical switches for high-temperature environment.
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Affiliation(s)
- Rujia Zou
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China; Center of Super-Diamond and Advanced Films (COSDAF), Department of Physics and Materials Science, City University of Hong Kong, Hong Kong
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Rubinstein DB, Flores G, Juarez JC, Montoro JB, Tusell JM, Altisent C. Efficacy of high-temperature dry heat in inactivating parvovirus. Haemophilia 1996; 2:64. [PMID: 27213912 DOI: 10.1111/j.1365-2516.1996.tb00016.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- D B Rubinstein
- Division of Hematology/Oncology, Boston University School of Medicine, 88 East Newton Street, Boston, MA 02118-2393, USAHaemophilia Unit, Ciudad Sanitaria Vall d'Hebron, Barcelona, Spain
| | - G Flores
- Division of Hematology/Oncology, Boston University School of Medicine, 88 East Newton Street, Boston, MA 02118-2393, USAHaemophilia Unit, Ciudad Sanitaria Vall d'Hebron, Barcelona, Spain
| | - J C Juarez
- Division of Hematology/Oncology, Boston University School of Medicine, 88 East Newton Street, Boston, MA 02118-2393, USAHaemophilia Unit, Ciudad Sanitaria Vall d'Hebron, Barcelona, Spain
| | - J B Montoro
- Division of Hematology/Oncology, Boston University School of Medicine, 88 East Newton Street, Boston, MA 02118-2393, USAHaemophilia Unit, Ciudad Sanitaria Vall d'Hebron, Barcelona, Spain
| | - J M Tusell
- Division of Hematology/Oncology, Boston University School of Medicine, 88 East Newton Street, Boston, MA 02118-2393, USAHaemophilia Unit, Ciudad Sanitaria Vall d'Hebron, Barcelona, Spain
| | - C Altisent
- Division of Hematology/Oncology, Boston University School of Medicine, 88 East Newton Street, Boston, MA 02118-2393, USAHaemophilia Unit, Ciudad Sanitaria Vall d'Hebron, Barcelona, Spain
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