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

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