ISIS Neutron and Muon Source Data Journal

Equations of state of D2O ice III and ice V

Abstract: The high-pressure forms of ice, phases III and V, are the equilibrium solids in contact with liquid water at pressures between 2.5 - 5.5 kbar. Consequently, their properties are important to calculating the volume changes caused by freezing of subsurface oceans inside icy planetary bodies and the buoyancy of icy volcanic melts. To quantify these properties we propose to measure the P-T dependence of the equation of state of ices III and V. Since both have small stability fields, we must quench these phases to < 100 K at high pressure. Furthermore, both phases are inhibited by the use of He pressure media. We propose a unique experiment in which argon is used to synthesize ices III and V, whereafter the system is purged with He so that we can cool < 100 K without freezing the pressure medium. This work will provide accurate equation of state parameters for planetary modelling.

Principal Investigator: Dr Dominic Fortes
Experimenter: Dr Weiwei Wang
Experimenter: Professor Ian Wood
Experimenter: Dr Christopher Howard

DOI: 10.5286/ISIS.E.RB1510049

ISIS Experiment Number: RB1510049

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Dr Dominic Fortes et al; (2015): Equations of state of D2O ice III and ice V, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1510049

Data is released under the CC-BY-4.0 license.