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Time-dependent amorphization of ice at 0.8-0.9 GPa
Umeå University, Faculty of Science and Technology, Department of Physics.
2004 (English)In: Journal of Chemical Physics, ISSN 0021-9606, E-ISSN 1089-7690, Vol. 121, no 8, 3936-3938 p.Article in journal (Refereed) Published
Abstract [en]

Thermal conductivity measurements show that ice continues to amorphize for several days when kept at a fixed pressure p in the 0.79–0.88 GPa range, and fixed temperature T in the 127–130 K range. Thermal conductivity k decreases according to a stretched exponential in time, and its limiting long time value k($\infty$) varies with p and T. At 0.8 GPa and 128 K, k($\infty$) remains 2.5 times the value observed for high-density amorph. Consequences of these findings for our understanding of amorphization are discussed.

Place, publisher, year, edition, pages
AIP , 2004. Vol. 121, no 8, 3936-3938 p.
National Category
Condensed Matter Physics
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OAI: oai:DiVA.org:umu-12306DiVA: diva2:151977
Available from: 2011-11-11 Created: 2007-03-30 Last updated: 2011-11-11Bibliographically approved

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