The glass transition of water, insight from phase change materials
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Department of Materials Science and Engineering, University of ArizonaIssue Date
2022Metadata
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Elsevier B.V.Citation
Lucas, P., Pries, J., Wei, S., & Wuttig, M. (2022). The glass transition of water, insight from phase change materials. Journal of Non-Crystalline Solids: X.Rights
Copyright © 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
The calorimetric features that have been broadly used to assign a glass transition temperature Tg of 136 K to amorphous water are qualitatively reproduced with a phase change material. Annealing treatments and ultrafast calorimetry measurements indicate that this feature is only a shadow-Tg and that the real Tg lies at higher temperature above the glass transition. A Kissinger analysis of the crystallization kinetics confirms that crystallization occurs below Tg from the glassy state at conventional heating rates. These results strongly suggest that the amorphous water endotherm at 136 K is indeed a shadow-Tg and that the real Tg lies at higher temperature as predicted from structural relaxation considerations. © 2022 The AuthorsNote
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2590-1591Version
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Except where otherwise noted, this item's license is described as Copyright © 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license.