Recrystallisation of HDA ice under pressure by in-situ neutron diffraction to 3.9 GPa | Semantic Scholar
@article{Klotz2003RecrystallisationOH,
title={Recrystallisation of HDA ice under pressure by in-situ neutron diffraction to 3.9 GPa},
author={Stefan Klotz and Gerard J. Hamel and John S. Loveday and Richard J. Nelmes and Malcolm Guthrie},
journal={Zeitschrift f{\"u}r Kristallographie - Crystalline Materials},
year={2003},
volume={218},
pages={117 - 122},
url={https://api.semanticscholar.org/CorpusID:96109290}
}Abstract We have studied by in-situ neutron diffraction the recrystallisation behaviour of HDA ice in the pressure range 0.3–3.9 GPa, i.e. the entire stability range of HDA. We report quantitative and detailed structural information on the various high pressure ice phases formed metastably at low temperatures. We find that between ~0.4–0.7 GPa, HDA transforms at 175 K to mainly phases IV and V, and XII, and at 1–1.2 GPa to a mixture of ice VI and XII. On isothermal compression at 100 K, HDA…
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Temperature-induced amorphisation of hexagonal ice.
- P. HandleT. Loerting
- 2015
Materials Science, Physics
The analysis suggests TIA to be a first-order phase transition which, by contrast to pressure-induced amorphisation (PIA), does not involve a precursor process and is interpreted as thermodynamic melting of ice followed by immediate vitrification rather than as mechanical collapse of hexagonal ice.