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Title: P-ρ-T measurements of H{sub 2}O up to 260 GPa under laser-driven shock loading

Abstract

Pressure, density, and temperature data for H{sub 2}O were obtained up to 260 GPa by using laser-driven shock compression technique. The shock compression technique combined with the diamond anvil cell was used to assess the equation of state models for the P-ρ-T conditions for both the principal Hugoniot and the off-Hugoniot states. The contrast between the models allowed for a clear assessment of the equation of state models. Our P-ρ-T data totally agree with those of the model based on quantum molecular dynamics calculations. These facts indicate that this model is adopted as the standard for modeling interior structures of Neptune, Uranus, and exoplanets in the liquid phase in the multi-Mbar range.

Authors:
 [1];  [2]; ;  [3];  [2]; ;  [4];  [5]; ; ; ;  [3];  [6]
  1. Geodynamics Research Center, Ehime University, 2-5 Bunkyo-cho, Matsuyama, Ehime 790-8577 (Japan)
  2. (Japan)
  3. Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871 (Japan)
  4. Institute of Laser Engineering, Osaka University, Suita, Osaka 565-0871 (Japan)
  5. Institute for Study of the Earth’s Interior, Okayama University, Misasa, Tottori 682-0193 (Japan)
  6. KYOKUGEN, Center for Science and Technology under Extreme Conditions, Osaka University, Toyonaka, Osaka 560-8531 (Japan)
Publication Date:
OSTI Identifier:
22415714
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Chemical Physics; Journal Volume: 142; Journal Issue: 16; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; COMPRESSION; COMPUTERIZED SIMULATION; DIAMONDS; EQUATIONS OF STATE; LIQUIDS; LOADING; MOLECULAR DYNAMICS METHOD; PRESSURE DEPENDENCE; PRESSURE RANGE GIGA PA; TEMPERATURE DEPENDENCE; WATER

Citation Formats

Kimura, T., Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Ozaki, N., Kodama, R., Photon Pioneers Center, Osaka University, Suita, Osaka 565-0871, Sano, T., Sakawa, Y., Okuchi, T., Sano, T., Miyanishi, K., Terai, T., Kakeshita, T., and Shimizu, K. P-ρ-T measurements of H{sub 2}O up to 260 GPa under laser-driven shock loading. United States: N. p., 2015. Web. doi:10.1063/1.4919052.
Kimura, T., Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Ozaki, N., Kodama, R., Photon Pioneers Center, Osaka University, Suita, Osaka 565-0871, Sano, T., Sakawa, Y., Okuchi, T., Sano, T., Miyanishi, K., Terai, T., Kakeshita, T., & Shimizu, K. P-ρ-T measurements of H{sub 2}O up to 260 GPa under laser-driven shock loading. United States. doi:10.1063/1.4919052.
Kimura, T., Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Ozaki, N., Kodama, R., Photon Pioneers Center, Osaka University, Suita, Osaka 565-0871, Sano, T., Sakawa, Y., Okuchi, T., Sano, T., Miyanishi, K., Terai, T., Kakeshita, T., and Shimizu, K. 2015. "P-ρ-T measurements of H{sub 2}O up to 260 GPa under laser-driven shock loading". United States. doi:10.1063/1.4919052.
@article{osti_22415714,
title = {P-ρ-T measurements of H{sub 2}O up to 260 GPa under laser-driven shock loading},
author = {Kimura, T. and Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871 and Ozaki, N. and Kodama, R. and Photon Pioneers Center, Osaka University, Suita, Osaka 565-0871 and Sano, T. and Sakawa, Y. and Okuchi, T. and Sano, T. and Miyanishi, K. and Terai, T. and Kakeshita, T. and Shimizu, K.},
abstractNote = {Pressure, density, and temperature data for H{sub 2}O were obtained up to 260 GPa by using laser-driven shock compression technique. The shock compression technique combined with the diamond anvil cell was used to assess the equation of state models for the P-ρ-T conditions for both the principal Hugoniot and the off-Hugoniot states. The contrast between the models allowed for a clear assessment of the equation of state models. Our P-ρ-T data totally agree with those of the model based on quantum molecular dynamics calculations. These facts indicate that this model is adopted as the standard for modeling interior structures of Neptune, Uranus, and exoplanets in the liquid phase in the multi-Mbar range.},
doi = {10.1063/1.4919052},
journal = {Journal of Chemical Physics},
number = 16,
volume = 142,
place = {United States},
year = 2015,
month = 4
}
  • A series of experiments have been conducted on metals subjected to planar impact loading in which a biaxial stress state and a uniaxial strain state is induced. Longitudinal and transverse stresses have been measured in copper, iron, and mild steel, using manganin stress gauges. The results have been used to calculate shear stress from the difference between the stress components. Results indicate that copper displays an increase in shear stress with pressure, showing similar trends to other work. An increase in dislocation density has been suggested as a possible mechanism. Iron shows a constant shear stress with increasing pressure, againmore » in accordance with other workers. Finally, mild steel has been observed to have a significant increase in shear stress with increasing pressure. The inclusion of a hard second phase in the microstructure is thought to produce a large amount of dislocation debris, again explaining the observed hardening. {copyright} {ital 1997 American Institute of Physics.}« less
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