1
|
Slepičková Kasálková N, Rimpelová S, Vacek C, Fajstavr D, Švorčík V, Sajdl P, Slepička P. Surface activation of Hastalex by vacuum argon plasma for cytocompatibility enhancement. Heliyon 2024; 10:e27816. [PMID: 38510028 PMCID: PMC10951612 DOI: 10.1016/j.heliyon.2024.e27816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 03/06/2024] [Accepted: 03/07/2024] [Indexed: 03/22/2024] Open
Abstract
Here, we present surface analysis and biocompatibility evaluation of novel composite material based on graphene oxide traded as Hastalex. First, the surface morphology and elemental analysis of the pristine material were examined by atomic force and scanning electron microscopies, and by energy-dispersive and X-ray photoelectron spectroscopies, respectively. The Hastalex surface was then modified by plasma (3 and 8 W with exposure times up to 240 s), the impact of which on the material surface wettability and morphology was further evaluated. In addition, the material aging was studied at room and elevated temperatures. Significant changes in surface roughness, morphology, and area were detected at the nanometer scale after plasma exposure. An increase in oxygen content due to the plasma exposure was observed both for 3 and 8 W. The plasma treatment had an outstanding effect on the cytocompatibility of Hastalex foil treated at both input powers of 3 and 8 W. The cell number of human MRC-5 fibroblasts on Hastalex foils exposed to plasma increased significantly compared to pristine Hastalex and even to tissue culture polystyrene. The plasma exposure also affected the fibroblasts' cell growth and shape.
Collapse
Affiliation(s)
- Nikola Slepičková Kasálková
- Department of Solid State Engineering, University of Chemistry and Technology Prague, 166 28 Prague, Czech Republic
| | - Silvie Rimpelová
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, 166 28 Prague, Czech Republic
| | - Cyril Vacek
- Department of Solid State Engineering, University of Chemistry and Technology Prague, 166 28 Prague, Czech Republic
| | - Dominik Fajstavr
- Department of Solid State Engineering, University of Chemistry and Technology Prague, 166 28 Prague, Czech Republic
| | - Václav Švorčík
- Department of Solid State Engineering, University of Chemistry and Technology Prague, 166 28 Prague, Czech Republic
| | - Petr Sajdl
- Department of Power Engineering, University of Chemistry and Technology Prague, 166 28 Prague, Czech Republic
| | - Petr Slepička
- Department of Solid State Engineering, University of Chemistry and Technology Prague, 166 28 Prague, Czech Republic
| |
Collapse
|
2
|
Tiwari SK, Pandey R, Wang N, Kumar V, Sunday OJ, Bystrzejewski M, Zhu Y, Mishra YK. Progress in Diamanes and Diamanoids Nanosystems for Emerging Technologies. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2105770. [PMID: 35174979 PMCID: PMC9008418 DOI: 10.1002/advs.202105770] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/12/2022] [Indexed: 06/14/2023]
Abstract
New materials are the backbone of their technology-driven modern civilization and at present carbon nanostructures are the leading candidates that have attracted huge research activities. Diamanes and diamanoids are the new nanoallotropes of sp3 hybridized carbon which can be fabricated by proper functionalization, substitution, and via Birch reduction under controlled pressure using graphitic system as a precursor. These nanoallotropes exhibit outstanding electrical, thermal, optical, vibrational, and mechanical properties, which can be an asset for new technologies, especially for quantum devices, photonics, and space technologies. Moreover, the features like wide bandgap, tunable thermal conductivity, excellent thermal insulation, etc. make diamanes and diamanoids ideal candidates for nano-electrical devices, nano-resonators, optical waveguides, and the next generation thermal management systems. In this review, diamanes and diamanoids are discussed in detail in terms of its historical prospect, method of synthesis, structural features, broad properties, and cutting-edge applications. Additionally, the prospects of diamanes and diamanoids for new applications are carefully discussed. This review aims to provide a critical update with important ideas for a new generation of quantum devices based on diamanes and diamanoids which are going to be an important topic in the future of carbon nanotechnology.
Collapse
Affiliation(s)
- Santosh K. Tiwari
- Faculty of ChemistryUniversity of Warsaw1 Pasteur Str.Warsaw02‐093Poland
- Key Laboratory of New Processing Technology for Nonferrous Metals and MaterialsMinistry of EducationSchool of ResourcesEnvironment and MaterialsGuangxi UniversityNanning530600China
| | - Raunak Pandey
- Department of Chemical Science and EngineeringKathmandu UniversityDhulikhel44600Nepal
| | - Nannan Wang
- Key Laboratory of New Processing Technology for Nonferrous Metals and MaterialsMinistry of EducationSchool of ResourcesEnvironment and MaterialsGuangxi UniversityNanning530600China
| | - Vijay Kumar
- Department of PhysicsNational Institute of Technology SrinagarHazratbalJammu and Kashmir19006India
- Department of PhysicsUniversity of the Free StateP.O. Box 339BloemfonteinZA9300South Africa
| | - Olusegun J. Sunday
- Faculty of ChemistryUniversity of Warsaw1 Pasteur Str.Warsaw02‐093Poland
| | | | - Yanqiu Zhu
- Key Laboratory of New Processing Technology for Nonferrous Metals and MaterialsMinistry of EducationSchool of ResourcesEnvironment and MaterialsGuangxi UniversityNanning530600China
- College of EngineeringMathematics and Physical SciencesUniversity of ExeterExeterEX4 4QFUK
| | - Yogendra Kumar Mishra
- Smart MaterialsNanoSYDMads Clausen InstituteUniversity of Southern DenmarkAlsion 2Sønderborg6400Denmark
| |
Collapse
|
3
|
Zhu Y, Wang Y, Wu B, He Z, Xia J, Wu H. Micromechanical Landscape of Three-Dimensional Disordered Graphene Networks. NANO LETTERS 2021; 21:8401-8408. [PMID: 34591476 DOI: 10.1021/acs.nanolett.1c02985] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Disordered carbons can be considered under the modeling framework of disordered graphene networks (DGNs) due to the continuous three-dimensional connectivity and high graphitization. Correlating microstructures and mechanical behaviors of DGNs to their topology is pivotal to revealing more intrinsic features hidden by disorder. Herein, starting from basic deformations and topology, we investigate DGNs with various densities to explore their micromechanical landscape. Both the tension and shear of DGNs exhibit prolonged plastic platforms through local tearing of microstructures. However, compression displays special plastic damages of forming kinklike puckers and sp3-bonded carbon, resulting in a tension-compression asymmetry of DGNs. Out-of-plane topological defects contribute to the main negative-curvature topology in deformed DGNs. Moreover, there are novel scaling laws where both the Young's modulus and strength (logarithms) follow an inversely proportional scaling with respect to average angular defects. Ashby charts demonstrate that the mechanical properties of DGNs can reach the theoretical limit region, surpassing those of most conventional materials.
Collapse
Affiliation(s)
- YinBo Zhu
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, CAS Center for Excellence in Complex System Mechanics, University of Science and Technology of China, Hefei 230027, People's Republic of China
| | - YongChao Wang
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, CAS Center for Excellence in Complex System Mechanics, University of Science and Technology of China, Hefei 230027, People's Republic of China
| | - Bao Wu
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, CAS Center for Excellence in Complex System Mechanics, University of Science and Technology of China, Hefei 230027, People's Republic of China
| | - ZeZhou He
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, CAS Center for Excellence in Complex System Mechanics, University of Science and Technology of China, Hefei 230027, People's Republic of China
| | - Jun Xia
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, CAS Center for Excellence in Complex System Mechanics, University of Science and Technology of China, Hefei 230027, People's Republic of China
| | - HengAn Wu
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, CAS Center for Excellence in Complex System Mechanics, University of Science and Technology of China, Hefei 230027, People's Republic of China
| |
Collapse
|
4
|
Jiang T, Zeng Y, Xiong X, Ye Z, Lun H, Chen S, Hu J, Yang G, Gao S. Effect of heat treatment on the microstructure and ablation performance of C/C-SiC composites containing ZrSi 2-Si. RSC Adv 2021; 11:16906-16912. [PMID: 35479698 PMCID: PMC9032350 DOI: 10.1039/d1ra01971f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 04/26/2021] [Indexed: 11/21/2022] Open
Abstract
Low-temperature reactive melt infiltration (LRMI) is advantageous for the fabrication of ceramic matrix composites (CMCs). However, residual metal in CMCs prepared by LRMI deteriorates the high-temperature properties. In this study, C/C–SiC composites containing ZrSi2–Si were prepared using LRMI at 1400 °C, and the effect of heat treatment at 1400 °C for 10, 20, or 30 h on the microstructure and ablation properties of the composites fabricated using three different ternary alloys (e.g., Zr0.047B0.0378Si0.9152, Zr0.0724B0.0366Si0.891, and Zr0.1B0.05Si0.85) was investigated. The results show that the residual Si in the composites can be decreased by volatilisation and the reaction between Si and C during heat treatment, resulting in a decrease in the density and an increase in the SiC content. The ablation rates of the composites after heat treatment for 20 h were lower than those of the samples after heat treatment for 30 and 10 h. Among the three alloys, the composites prepared using Zr0.0724B0.0366Si0.891 demonstrated the best ablation performance. Their linear and mass ablation rates at 1911 °C were −0.11 μm s−1 and 1.82 μg s−1, respectively. C/C–SiC composites containing ZrSi2–Si were prepared using low-temperature reactive melt infiltration (LRMI) at 1400 °C, and the thermal chemical ablation of the composites was examined.![]()
Collapse
Affiliation(s)
- Tianxing Jiang
- State Key Laboratory of Powder Metallurgy, Central South University Changsha 410083 China
| | - Yi Zeng
- State Key Laboratory of Powder Metallurgy, Central South University Changsha 410083 China
| | - Xiang Xiong
- State Key Laboratory of Powder Metallurgy, Central South University Changsha 410083 China
| | - Ziming Ye
- State Key Laboratory of Powder Metallurgy, Central South University Changsha 410083 China
| | - Huilin Lun
- State Key Laboratory of Powder Metallurgy, Central South University Changsha 410083 China
| | - Shiyan Chen
- State Key Laboratory of Powder Metallurgy, Central South University Changsha 410083 China
| | - Jinrun Hu
- State Key Laboratory of Powder Metallurgy, Central South University Changsha 410083 China
| | - Ge Yang
- State Key Laboratory of Powder Metallurgy, Central South University Changsha 410083 China
| | - Sen Gao
- State Key Laboratory of Powder Metallurgy, Central South University Changsha 410083 China
| |
Collapse
|
5
|
Integrative improvement on thermophysical properties and ablation resistance of laminated carbon/carbon composites modified by in situ grown HfC nanowires onto carbon fiber cloths. Ann Ital Chir 2021. [DOI: 10.1016/j.jeurceramsoc.2020.08.047] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
6
|
Jia XQ, Li SY, Miu HJ, Yang T, Rao K, Wu DY, Cui BL, Ou JL, Zhu ZC. Carbon Nanomaterials: A New Sustainable Solution to Reduce the Emerging Environmental Pollution of Turbomachinery Noise and Vibration. Front Chem 2020; 8:683. [PMID: 32974272 PMCID: PMC7468423 DOI: 10.3389/fchem.2020.00683] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 06/30/2020] [Indexed: 11/13/2022] Open
Abstract
The vibration and noise that resulted from turbomachinery, such as fans, compressors, and centrifugal pumps, are known to bring considerable disturbance and pollution to the machine itself, the environment, and the operators. Hence, how to cope with the vibration and noise has become a recent research focus. With the advancement of materials science, more and more new nanomaterials have been applied in the field of noise and vibration reduction. To be specific, carbon-based nanomaterials, such as carbon fibers, carbon nanotubes, and graphenes, have achieved outstanding results. Carbon nanocomposites, such as carbon nanofibers, carbon nanotubes, and graphenes, are characterized by their low densities, high strengths, and high elastic moduli, all of which made carbon nanocomposites the most promising vibration and noise-reduction composites, thanks to their damping properties, compatibilities, noise and vibration absorption qualities, and wide wave-absorbing frequency bands. In light of this, this paper summarizes the progresses and application prospects of such carbon nanocomposites as carbon nanofibers, carbon nanotubes, and graphenes in the field of turbomachinery vibration and noise reduction.
Collapse
Affiliation(s)
- Xiao Qi Jia
- Key Laboratory of Fluid Transmission Technology of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, China
| | - Song Yu Li
- Key Laboratory of Fluid Transmission Technology of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, China
| | | | - Tuo Yang
- Hangzhou Dalu Industry Co., Ltd, Hangzhou, China
| | - Kun Rao
- Hangzhou Dalu Industry Co., Ltd, Hangzhou, China
| | - Dong Yang Wu
- Hangzhou Oxygen Plant Group Co., Ltd, Hangzhou, China
| | - Bao Ling Cui
- Key Laboratory of Fluid Transmission Technology of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, China
| | - Jun Lang Ou
- Key Laboratory of Fluid Transmission Technology of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, China
| | - Zu Chao Zhu
- Key Laboratory of Fluid Transmission Technology of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, China
| |
Collapse
|
7
|
Zhang S, Ma Y, Suresh L, Hao A, Bick M, Tan SC, Chen J. Carbon Nanotube Reinforced Strong Carbon Matrix Composites. ACS NANO 2020; 14:9282-9319. [PMID: 32790347 DOI: 10.1021/acsnano.0c03268] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
As an excellent candidate for lightweight structural materials and nonmetal electrical conductors, carbon nanotube reinforced carbon matrix (CNT/C) composites have potential use in technologies employed in aerospace, military, and defense endeavors, where the combinations of light weight, high strength, and excellent conductivity are required. Both polymer infiltration pyrolysis (PIP) and chemical vapor infiltration (CVI) methods have been widely studied for CNT/C composite fabrications with diverse focuses and various modifications. Progress has been reported to optimize the performance of CNT/C composites from broad aspects, including matrix densification, CNT alignment, microstructure control, and interface engineering, etc. Recent approaches, such as using resistance heating for PIP or CVI, contribute to the development of CNT/C composites. To deliver a timely and up-to-date overview of CNT/C composites, we have reviewed the most recent trends in fabrication processes, summarized the mechanical reinforcement mechanism, and discussed the electrical and thermal properties, as well as relevant case studies for high-temperature applications. Conclusions and perspectives addressing future routes for performance optimization are also presented. Hence, this review serves as a rundown of recent advances in CNT/C composites and will be a valuable resource to aid future developments in this field.
Collapse
Affiliation(s)
- Songlin Zhang
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Yan Ma
- National & Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Protection, School of Textiles and Clothing, Nantong University, Nantong 226019, P.R. China
| | - Lakshmi Suresh
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117574
| | - Ayou Hao
- High-Performance Materials Institute, FAMU-FSU College of Engineering, Florida State University, Tallahassee, Florida 32310, United States
| | - Michael Bick
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Swee Ching Tan
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117574
| | - Jun Chen
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, California 90095, United States
| |
Collapse
|
8
|
Ablation Behavior of the SiC-Coated Three-Dimensional Highly Thermal Conductive Mesophase-Pitch-Based Carbon-Fiber-Reinforced Carbon Matrix Composite under Plasma Flame. MATERIALS 2019; 12:ma12172723. [PMID: 31450686 PMCID: PMC6747807 DOI: 10.3390/ma12172723] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Revised: 08/20/2019] [Accepted: 08/22/2019] [Indexed: 12/04/2022]
Abstract
This study is focused on a novel high-thermal-conductive C/C composite used in heat-redistribution thermal protection systems. The 3D mesophase pitch-based carbon fiber (CFMP) preform was prepared using CFMP in the X (Y) direction and polyacrylonitrile carbon fiber (CFPAN) in the Z direction. After the preform was densified by chemical vapor infiltration (CVI) and polymer infiltration and pyrolysis (PIP), the 3D high-thermal-conductive C/C (CMP/C) composite was obtained. The prepared CMP/C composite has higher thermal conduction in the X and Y directions. After an ablation test, the CFPAN becomes needle-shaped, while the CFMP shows a wedge shape. The fiber/matrix and matrix/matrix interfaces are preferentially oxidized and damaged during ablation. After being coated by SiC coating, the thermal conductivity plays a significant role in decreasing the hot-side temperature and protecting the SiC coating from erosion by flame. The SiC-coated CMP/C composite has better ablation resistance than the SiC-coated CPAN/C composite. The mass ablation rate of the sample is 0.19 mg·(cm−2·s−1), and the linear ablation rate is 0.52 μm·s−1.
Collapse
|
9
|
Delfini A, Albano M, Vricella A, Santoni F, Rubini G, Pastore R, Marchetti M. Advanced Radar Absorbing Ceramic-Based Materials for Multifunctional Applications in Space Environment. MATERIALS 2018; 11:ma11091730. [PMID: 30223490 PMCID: PMC6165292 DOI: 10.3390/ma11091730] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 09/07/2018] [Accepted: 09/12/2018] [Indexed: 11/16/2022]
Abstract
In this review, some results of the experimental activity carried out by the authors on advanced composite materials for space applications are reported. Composites are widely employed in the aerospace industry thanks to their lightweight and advanced thermo-mechanical and electrical properties. A critical issue to tackle using engineered materials for space activities is providing two or more specific functionalities by means of single items/components. In this scenario, carbon-based composites are believed to be ideal candidates for the forthcoming development of aerospace research and space missions, since a widespread variety of multi-functional structures are allowed by employing these materials. The research results described here suggest that hybrid ceramic/polymeric structures could be employed as spacecraft-specific subsystems in order to ensure extreme temperature withstanding and electromagnetic shielding behavior simultaneously. The morphological and thermo-mechanical analysis of carbon/carbon (C/C) three-dimensional (3D) shell prototypes is reported; then, the microwave characterization of multilayered carbon-filled micro-/nano-composite panels is described. Finally, the possibility of combining the C/C bulk with a carbon-reinforced skin in a synergic arrangement is discussed, with the aid of numerical and experimental analyses.
Collapse
Affiliation(s)
- Andrea Delfini
- Electric and Energy Engineering (DIAEE), Department of Astronautics, Sapienza University of Rome, 00138 Rome, Italy.
| | | | - Antonio Vricella
- Electric and Energy Engineering (DIAEE), Department of Astronautics, Sapienza University of Rome, 00138 Rome, Italy.
| | - Fabio Santoni
- Electric and Energy Engineering (DIAEE), Department of Astronautics, Sapienza University of Rome, 00138 Rome, Italy.
| | - Giulio Rubini
- Electric and Energy Engineering (DIAEE), Department of Astronautics, Sapienza University of Rome, 00138 Rome, Italy.
| | - Roberto Pastore
- Department of Mechanical and Aerospace Engineering (DIMA), Sapienza University of Rome, 00184 Rome, Italy.
| | - Mario Marchetti
- Electric and Energy Engineering (DIAEE), Department of Astronautics, Sapienza University of Rome, 00138 Rome, Italy.
| |
Collapse
|
10
|
Effect of Al–Mg Alloy Infiltration on Mechanical and Electrical Properties for Carbon/Carbon Composites. CRYSTALS 2018. [DOI: 10.3390/cryst8050196] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
11
|
Zeng Y, Wang D, Xiong X, Zhang X, Withers PJ, Sun W, Smith M, Bai M, Xiao P. Ablation-resistant carbide Zr 0.8Ti 0.2C 0.74B 0.26 for oxidizing environments up to 3,000 °C. Nat Commun 2017; 8:15836. [PMID: 28613275 PMCID: PMC5474735 DOI: 10.1038/ncomms15836] [Citation(s) in RCA: 110] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 05/01/2017] [Indexed: 11/09/2022] Open
Abstract
Ultra-high temperature ceramics are desirable for applications in the hypersonic vehicle, rockets, re-entry spacecraft and defence sectors, but few materials can currently satisfy the associated high temperature ablation requirements. Here we design and fabricate a carbide (Zr0.8Ti0.2C0.74B0.26) coating by reactive melt infiltration and pack cementation onto a C/C composite. It displays superior ablation resistance at temperatures from 2,000–3,000 °C, compared to existing ultra-high temperature ceramics (for example, a rate of material loss over 12 times better than conventional zirconium carbide at 2,500 °C). The carbide is a substitutional solid solution of Zr–Ti containing carbon vacancies that are randomly occupied by boron atoms. The sealing ability of the ceramic’s oxides, slow oxygen diffusion and a dense and gradient distribution of ceramic result in much slower loss of protective oxide layers formed during ablation than other ceramic systems, leading to the superior ablation resistance. Hypersonic and aerospace applications motivate development of materials with improved resistance against ablation and oxidation at high temperatures. Here authors demonstrate a quaternary carbide, where sealing by surface oxides, slow oxygen diffusion and a graded structure yield improved ablation resistance over established ceramics.
Collapse
Affiliation(s)
- Yi Zeng
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China.,School of Materials, University of Manchester, Manchester M13 9PL, UK
| | - Dini Wang
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
| | - Xiang Xiong
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
| | - Xun Zhang
- School of Materials, University of Manchester, Manchester M13 9PL, UK
| | - Philip J Withers
- School of Materials, University of Manchester, Manchester M13 9PL, UK
| | - Wei Sun
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
| | - Matthew Smith
- School of Materials, University of Manchester, Manchester M13 9PL, UK
| | - Mingwen Bai
- School of Materials, University of Manchester, Manchester M13 9PL, UK
| | - Ping Xiao
- School of Materials, University of Manchester, Manchester M13 9PL, UK
| |
Collapse
|
12
|
Cao N, Yang Z, Yang B, Wang W, Boukherroub R, Li M. Construction of a bone-like surface layer on hydroxyl-modified carbon/carbon composite implants via biomimetic mineralization and in vivo tests. RSC Adv 2016. [DOI: 10.1039/c5ra25330f] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
By means of biomimetic mineralization method, Mg-doped hydroxyapatite nano particles were successfully prepared on hydroxyl-modified C/C surfaces.
Collapse
Affiliation(s)
- Ning Cao
- College of Mechanical and Electrical Engineering
- China University of Petroleum
- Qingdao 266580
- P. R. China
| | - Zhenguo Yang
- The Second Affiliated Hospital
- Shandong University of Chinese Traditional Medicine
- Ji'nan 250001
- P. R. China
| | - Bai Yang
- College of Mechanical and Electrical Engineering
- China University of Petroleum
- Qingdao 266580
- P. R. China
| | - Wenbo Wang
- The Second Affiliated Hospital
- Shandong University of Chinese Traditional Medicine
- Ji'nan 250001
- P. R. China
| | - Rabah Boukherroub
- Institut d'Electronique
- de Microélectronique et de Nanotechnologie (IEMN)
- UMR CNRS8520
- Université Lille1
- 59652 Villeneuve d'Ascq
| | - Musen Li
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education) Shandong University
- Jinan 250061
- P. R. China
| |
Collapse
|
13
|
Vivekanandhan S, Misra M, Mohanty AK. Microscopic, structural, and electrical characterization of the carbonaceous materials synthesized from various lignin feedstocks. J Appl Polym Sci 2014. [DOI: 10.1002/app.41786] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Singaravelu Vivekanandhan
- Department of Plant Agriculture; Bioproducts Discovery and Development Centre, Crop Science Building, University of Guelph; Guelph Ontario N1G 2W1 Canada
- School of Engineering, Thornbrough Building, University of Guelph; Guelph Ontario N1G 2W1 Canada
| | - Manjusri Misra
- Department of Plant Agriculture; Bioproducts Discovery and Development Centre, Crop Science Building, University of Guelph; Guelph Ontario N1G 2W1 Canada
- School of Engineering, Thornbrough Building, University of Guelph; Guelph Ontario N1G 2W1 Canada
| | - Amar Kumar Mohanty
- Department of Plant Agriculture; Bioproducts Discovery and Development Centre, Crop Science Building, University of Guelph; Guelph Ontario N1G 2W1 Canada
- School of Engineering, Thornbrough Building, University of Guelph; Guelph Ontario N1G 2W1 Canada
| |
Collapse
|
14
|
Liu H, Yan L, Yue B, Li A. Hydrogen transfer reaction in polycyclic aromatic hydrocarbon radicals. J Phys Chem A 2014; 118:4405-14. [PMID: 24893119 DOI: 10.1021/jp503872m] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Density functional theory calculations have been successfully applied to investigate the formation of hydrocarbon radicals and hydrogen transfer pathways related to the chemical vapor infiltration process based on model molecules of phenanthrene, anthra[2,1,9,8-opqra]tetracene, dibenzo[a,ghi]perylene, benzo[uv]naphtho[2,1,8,7-defg]pentaphene, and dibenzo[bc,ef]ovalene. The hydrogen transfer reaction rate constants are calculated within the framework of the Rice-Ramsperger-Kassel-Marcus theory and the transition state theory by use of the density functional theory calculation results as input. From these calculations, it is concluded that the hydrogen transfer reaction between two bay sites can happen almost spontaneously with energy barrier as low as about 4.0 kcal mol(-1), and the hydrogen transfer reactions between two armchair sites possess lower energy barrier than those between two zigzag sites.
Collapse
Affiliation(s)
- Huiting Liu
- Department of Chemistry, Innovative Drug Research Center, College of Sciences ‡ Research Center for Composite Materials Shanghai University , 99 Shangda Road, Shanghai 200444, China
| | | | | | | |
Collapse
|
15
|
Manocha LM, Vyas MM, Manocha S, Raole PM. Development of Carbon- and Ceramic-Based Composites through Liquid Routes and Their Mechanical Properties. FUSION SCIENCE AND TECHNOLOGY 2014. [DOI: 10.13182/fst13-674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- L. M. Manocha
- Sardar Patel University, Department of Materials Science, Vallabh Vidyanagar, India
| | - Milan M. Vyas
- Sardar Patel University, Department of Materials Science, Vallabh Vidyanagar, India
| | - S. Manocha
- Sardar Patel University, Department of Materials Science, Vallabh Vidyanagar, India
| | - P. M. Raole
- Institute for Plasma Research, Bhat, Gandhinagar, India
| |
Collapse
|
16
|
Jin Y, Zhang Y, Zhang Q, Zhang R, Li P, Qian W, Wei F. Multi-walled carbon nanotube-based carbon/carbon composites with three-dimensional network structures. NANOSCALE 2013; 5:6181-6186. [PMID: 23733014 DOI: 10.1039/c3nr01069d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Multi-walled carbon nanotube (MWCNT)-based carbon/carbon composites were fabricated by the chemical vapor infiltration of pyrolytic carbon into pre-compressed MWCNT blocks. The pyrolytic carbon was deposited on the surface of the MWCNTs and filled the gaps between the MWCNTs, which improved the connection between the MWCNTs and formed a three-dimensional network structure. The mechanical and electrical properties were improved significantly. The values of the maximum compressed deformation, maximum breaking strength, Young's modulus and energy absorption are measured as 10.9%, 148.6 MPa, 1588.6 MPa and 13.8 kJ kg(-1), respectively. The conductivity reached about 204.4 S cm(-1), more than 10 times larger than that of pre-compressed MWCNT blocks. After annealing at 1800 °C in vacuum, the graphitization improved remarkably. The pyrolytic carbon deposited on the surface of the MWCNTs was rearranged along the walls, and resulted in an increase of the number of walls of the MWCNTs.
Collapse
Affiliation(s)
- Yuguang Jin
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Tsinghua University, Beijing 100084, China
| | | | | | | | | | | | | |
Collapse
|
17
|
Industrial Carbon Chemical Vapor Infiltration (Cvi) Processes. ACTA ACUST UNITED AC 2012. [DOI: 10.1201/9780203166789.ch6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
|