P-ρ-T measurements of H{sub 2}O up to 260 GPa under laser-driven shock loading
Journal Article
·
· Journal of Chemical Physics
- Geodynamics Research Center, Ehime University, 2-5 Bunkyo-cho, Matsuyama, Ehime 790-8577 (Japan)
- Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871 (Japan)
- Institute of Laser Engineering, Osaka University, Suita, Osaka 565-0871 (Japan)
- Institute for Study of the Earth’s Interior, Okayama University, Misasa, Tottori 682-0193 (Japan)
- KYOKUGEN, Center for Science and Technology under Extreme Conditions, Osaka University, Toyonaka, Osaka 560-8531 (Japan)
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.
- OSTI ID:
- 22415714
- Journal Information:
- Journal of Chemical Physics, Vol. 142, Issue 16; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-9606
- Country of Publication:
- United States
- Language:
- English
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