Experimental data for: Medium-density amorphous ice
Authors/Creators
- 1. University College London
- 2. University of Cambridge
Description
Amorphous ices govern a range of cosmological processes and are potentially key materials for explaining the anomalies of liquid water. A substantial density gap between low-density amorphous (LDA) and the high-density amorphous ices (HDA) with liquid water in the middle is a cornerstone of our current understanding of water. However, we show that ball milling 'ordinary' ice Ih at low temperature gives a structurally distinct medium-density amorphous ice (MDA) within this density gap. These results raise the possibility that MDA is the true glassy state of liquid water or alternatively a heavily sheared crystalline state. Remarkably, the compression of MDA at low temperature leads to a sharp increase of its recrystallization enthalpy highlighting that H2O can be a high-energy geophysical material.
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Funding provided by: H2020 European Research Council
Crossref Funder Registry ID: http://dx.doi.org/10.13039/100010663
Award Number: 725272
Funding provided by: Engineering and Physical Sciences Research Council
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100000266
Award Number: EP/L000202
Funding provided by: Engineering and Physical Sciences Research Council
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100000266
Award Number: EP/P020194/1
Funding provided by: Engineering and Physical Sciences Research Council
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100000266
Award Number: EP/T022213/1
Funding provided by: Engineering and Physical Sciences Research Council
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100000266
Award Number: EP/S03305X/1
Funding provided by: Austrian Science Fund
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100002428
Award Number: J4325
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