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Dolgoborodov A, Rostilov T, Ananev S, Ziborov V, Grishin L, Kuskov M, Zhigach A. Structure of Shock Wave in Nanoscale Porous Nickel at Pressures up to 7 GPa. Materials (Basel) 2022; 15:8501. [PMID: 36499997 PMCID: PMC9736727 DOI: 10.3390/ma15238501] [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] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/24/2022] [Accepted: 11/27/2022] [Indexed: 06/17/2023]
Abstract
The structure of shock waves in pressed porous samples of nickel nanoparticles was investigated in a series of uniaxial planar plate impact experiments in the pressure range of 1.6-7.1 GPa. The initial porosity of the samples was about 50%. Wave profiles were obtained using laser velocimetry techniques. The nanomaterial demonstrated a complex response to shock loading including the development of a two-wave structure associated with precursor and compaction waves. The effect on profiles and measurements of the observed precursor reverberations propagating between the front of a compaction wave and a monitored sample surface was described. The obtained wave profiles were used to estimate the thicknesses of precursor and compaction wave fronts.
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Affiliation(s)
- Alexander Dolgoborodov
- Joint Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya 13 Bd. 2, 125412 Moscow, Russia
- N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Kosygin St. 4, 119991 Moscow, Russia
| | - Timofei Rostilov
- Joint Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya 13 Bd. 2, 125412 Moscow, Russia
| | - Sergey Ananev
- Joint Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya 13 Bd. 2, 125412 Moscow, Russia
| | - Vadim Ziborov
- Joint Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya 13 Bd. 2, 125412 Moscow, Russia
| | - Leonid Grishin
- Joint Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya 13 Bd. 2, 125412 Moscow, Russia
| | - Mikhail Kuskov
- N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Kosygin St. 4, 119991 Moscow, Russia
| | - Alexey Zhigach
- N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Kosygin St. 4, 119991 Moscow, Russia
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Edalatmanesh A, Mahnama M, Feghhi F, Mashhadi MM. Mechanical characterization of reinforced vertically-aligned carbon nanotube array synthesized by shock-induced partial phase transition: insight from molecular dynamics simulations. J Phys Condens Matter 2022; 34:235401. [PMID: 35294943 DOI: 10.1088/1361-648x/ac5e77] [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: 01/23/2022] [Accepted: 03/16/2022] [Indexed: 06/14/2023]
Abstract
Despite intriguing mechanical properties of carbon nanotubes (CNTs), vertically-aligned carbon nanotube (VACNT) array does not possess a high strength against compression along the CNT axis and also the loadings perpendicular to the CNT axis. Here in this study, shock compression is introduced as a means for partial phase transition (PPT) in the VACNT array to reinforce the structure against the mentioned loadings. Molecular dynamics simulations are exploited to investigate the synthesis of a novel nanostructure from a VACNT array with 10 nm long (5, 5) CNTs. Employing Hugoniostat method, shockwave pressures of 6.6 GPa and 55 GPa are extracted from Hugoniot curves as the instability limit and the PPT point, respectively. Coordination analysis reveals the nucleation of carbon atoms in sp3hybridization while preserving the dominant nature of CNT due to the high percent of sp2hybridization. Recovery of the shocked samples yields the final structure to be tested for mechanical characteristics. Tensile and compression tests on the samples reveal that for the shockwave pressures below the PPT point, an increase of the shock strength leads to higher compliance in the VACNT array. However, beyond the PPT point the novel nanostructure shows an extraordinary strong behavior against loading along all directions.
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Affiliation(s)
- Alireza Edalatmanesh
- School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Maryam Mahnama
- School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Fatemeh Feghhi
- School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Mahmoud Mosavi Mashhadi
- School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, Iran
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Davies EJ, Duncan MS, Root S, Kraus RG, Spaulding DK, Jacobsen SB, Stewart ST. Temperature and Density on the Forsterite Liquid-Vapor Phase Boundary. J Geophys Res Planets 2021; 126:e2020JE006745. [PMID: 34221785 PMCID: PMC8244105 DOI: 10.1029/2020je006745] [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] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 01/29/2021] [Accepted: 02/06/2021] [Indexed: 06/13/2023]
Abstract
The physical processes during planet formation span a large range of pressures and temperatures. Giant impacts, such as the one that formed the Moon, achieve peak pressures of 100s of GPa. The peak shock states generate sufficient entropy such that subsequent decompression to low pressures intersects the liquid-vapor phase boundary. The entire shock-and-release thermodynamic path must be calculated accurately in order to predict the post-impact structures of planetary bodies. Forsterite (Mg2SiO4) is a commonly used mineral to represent the mantles of differentiated bodies in hydrocode models of planetary collisions. Here, we performed shock experiments on the Sandia Z Machine to obtain the density and temperature of the liquid branch of the liquid-vapor phase boundary of forsterite. This work is combined with previous work constraining pressure, density, temperature, and entropy of the forsterite principal Hugoniot. We find that the vapor curves in previous forsterite equation of state models used in giant impacts vary substantially from our experimental results, and we compare our results to a recently updated equation of state. We have also found that due to under-predicted entropy production on the principal Hugoniot and elevated temperatures of the liquid vapor phase boundary of these past models, past impact studies may have underestimated vapor production. Furthermore, our results provide experimental support to the idea that giant impacts can transform much of the mantles of rocky planets into supercritical fluids.
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Affiliation(s)
- E. J. Davies
- Lawrence Livermore National LaboratoryLivermoreCAUSA
- Department of Earth and Planetary SciencesU. CaliforniaDavisCAUSA
| | - M. S. Duncan
- Department of GeosciencesVirginia TechBlacksburgVAUSA
| | - S. Root
- Sandia National LaboratoriesAlbuquerqueNMUSA
| | - R. G. Kraus
- Lawrence Livermore National LaboratoryLivermoreCAUSA
| | - D. K. Spaulding
- Department of Earth and Planetary SciencesU. CaliforniaDavisCAUSA
| | - S. B. Jacobsen
- Department of Earth and Planetary ScienceHarvard UniversityMAUSA
| | - S. T. Stewart
- Department of Earth and Planetary SciencesU. CaliforniaDavisCAUSA
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Sekine T, Ozaki N, Miyanishi K, Asaumi Y, Kimura T, Albertazzi B, Sato Y, Sakawa Y, Sano T, Sugita S, Matsui T, Kodama R. Shock compression response of forsterite above 250 GPa. Sci Adv 2016; 2:e1600157. [PMID: 27493993 PMCID: PMC4972465 DOI: 10.1126/sciadv.1600157] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 06/30/2016] [Indexed: 06/06/2023]
Abstract
Forsterite (Mg2SiO4) is one of the major planetary materials, and its behavior under extreme conditions is important to understand the interior structure of large planets, such as super-Earths, and large-scale planetary impact events. Previous shock compression measurements of forsterite indicate that it may melt below 200 GPa, but these measurements did not go beyond 200 GPa. We report the shock response of forsterite above ~250 GPa, obtained using the laser shock wave technique. We simultaneously measured the Hugoniot and temperature of shocked forsterite and interpreted the results to suggest the following: (i) incongruent crystallization of MgO at 271 to 285 GPa, (ii) phase transition of MgO at 285 to 344 GPa, and (iii) remelting above ~470 to 500 GPa. These exothermic and endothermic reactions are seen to occur under extreme conditions of pressure and temperature. They indicate complex structural and chemical changes in the system MgO-SiO2 at extreme pressures and temperatures and will affect the way we understand the interior processes of large rocky planets as well as material transformation by impacts in the formation of planetary systems.
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Affiliation(s)
- Toshimori Sekine
- Department of Earth and Planetary Systems Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - Norimasa Ozaki
- Graduate School of Engineering, Osaka University, Suita 565-0871, Japan
- Photon Pioneers Center, Osaka University, Suita 565-0871, Japan
| | - Kohei Miyanishi
- Graduate School of Engineering, Osaka University, Suita 565-0871, Japan
| | - Yuto Asaumi
- Graduate School of Engineering, Osaka University, Suita 565-0871, Japan
| | - Tomoaki Kimura
- Geodynamics Research Center, Ehime University, Matsuyama 790-8577, Japan
| | - Bruno Albertazzi
- Graduate School of Engineering, Osaka University, Suita 565-0871, Japan
| | - Yuya Sato
- Graduate School of Engineering, Osaka University, Suita 565-0871, Japan
| | - Youichi Sakawa
- Institute of Laser Engineering, Osaka University, Suita 565-0871, Japan
| | - Takayoshi Sano
- Institute of Laser Engineering, Osaka University, Suita 565-0871, Japan
| | - Seiji Sugita
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-856, Japan
| | - Takafumi Matsui
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - Ryosuke Kodama
- Graduate School of Engineering, Osaka University, Suita 565-0871, Japan
- Photon Pioneers Center, Osaka University, Suita 565-0871, Japan
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