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Title: Equations of state of ice VI and ice VII at high pressure and high temperature

Abstract

High-pressure H{sub 2}O polymorphs among which ice VI and ice VII are abundant in the interiors of large icy satellites and exo-planets. Knowledge of the elastic properties of these pure H{sub 2}O ices at high-temperature and high-pressure is thus crucial to decipher the internal structure of icy bodies. In this study we assess for the first time the pressure-volume-temperature (PVT) relations of both polycrystalline pure ice VI and ice VII at high pressures and temperatures from 1 to 9 GPa and 300 to 450 K, respectively, by using in situ synchrotron X-ray diffraction. The PVT data are adjusted to a second-order Birch-Murnaghan equation of state and give V{sub 0} = 14.17(2) cm{sup 3} mol{sup −1}, K{sub 0} = 14.05(23) GPa, and α{sub 0} = 14.6(14) × 10{sup −5} K{sup −1} for ice VI and V{sub 0} = 12.49(1) cm{sup 3} mol{sup −1}, K{sub 0} = 20.15(16) GPa, and α{sub 0} = 11.6(5) × 10{sup −5} K{sup −1} for ice VII.

Authors:
;  [1]; ; ; ;  [2]
  1. European Synchrotron Radiation Facility, 6 rue Jules Horowitz, 38000 Grenoble (France)
  2. Laboratoire de Géologie de Lyon, UMR 5276 CNRS, Ecole Normale Supérieure de Lyon – Université Claude Bernard Lyon 1, 2 rue Raphael Dubois, 69622 Villeurbanne Cedex (France)
Publication Date:
OSTI Identifier:
22308383
Resource Type:
Journal Article
Journal Name:
Journal of Chemical Physics
Additional Journal Information:
Journal Volume: 141; Journal Issue: 10; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-9606
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ELASTICITY; EQUATIONS OF STATE; ICE; POLYCRYSTALS; PRESSURE RANGE GIGA PA; TEMPERATURE RANGE 0400-1000 K; WATER; X-RAY DIFFRACTION

Citation Formats

Bezacier, Lucile, Hanfland, Michael, Journaux, Baptiste, Perrillat, Jean-Philippe, Cardon, Hervé, and Daniel, Isabelle. Equations of state of ice VI and ice VII at high pressure and high temperature. United States: N. p., 2014. Web. doi:10.1063/1.4894421.
Bezacier, Lucile, Hanfland, Michael, Journaux, Baptiste, Perrillat, Jean-Philippe, Cardon, Hervé, & Daniel, Isabelle. Equations of state of ice VI and ice VII at high pressure and high temperature. United States. doi:10.1063/1.4894421.
Bezacier, Lucile, Hanfland, Michael, Journaux, Baptiste, Perrillat, Jean-Philippe, Cardon, Hervé, and Daniel, Isabelle. Sun . "Equations of state of ice VI and ice VII at high pressure and high temperature". United States. doi:10.1063/1.4894421.
@article{osti_22308383,
title = {Equations of state of ice VI and ice VII at high pressure and high temperature},
author = {Bezacier, Lucile and Hanfland, Michael and Journaux, Baptiste and Perrillat, Jean-Philippe and Cardon, Hervé and Daniel, Isabelle},
abstractNote = {High-pressure H{sub 2}O polymorphs among which ice VI and ice VII are abundant in the interiors of large icy satellites and exo-planets. Knowledge of the elastic properties of these pure H{sub 2}O ices at high-temperature and high-pressure is thus crucial to decipher the internal structure of icy bodies. In this study we assess for the first time the pressure-volume-temperature (PVT) relations of both polycrystalline pure ice VI and ice VII at high pressures and temperatures from 1 to 9 GPa and 300 to 450 K, respectively, by using in situ synchrotron X-ray diffraction. The PVT data are adjusted to a second-order Birch-Murnaghan equation of state and give V{sub 0} = 14.17(2) cm{sup 3} mol{sup −1}, K{sub 0} = 14.05(23) GPa, and α{sub 0} = 14.6(14) × 10{sup −5} K{sup −1} for ice VI and V{sub 0} = 12.49(1) cm{sup 3} mol{sup −1}, K{sub 0} = 20.15(16) GPa, and α{sub 0} = 11.6(5) × 10{sup −5} K{sup −1} for ice VII.},
doi = {10.1063/1.4894421},
journal = {Journal of Chemical Physics},
issn = {0021-9606},
number = 10,
volume = 141,
place = {United States},
year = {2014},
month = {9}
}