Journal
THERMOCHIMICA ACTA
Volume 636, Issue -, Pages 11-22Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.tca.2016.04.012
Keywords
High-density amorphous ice; Structural relaxation; Crystallization rate; Quench-recovery from high-pressure; X-ray diffraction; Differential scanning calorimetry
Funding
- Austrian Science Fund FWF [J3811 N34, I1392]
- DOC Fellowship of the Austrian Academy of Sciences OAW at the Institute of Physical Chemistry, University of Innsbruck
- Austrian Science Fund (FWF) [I1392] Funding Source: Austrian Science Fund (FWF)
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In earlier work [P. H. Handle, M. Seidl and T. Loerting, Phys. Rev. Lett., 2012, 108, 225901] we reported on the relaxation time and extrapolated glass transition temperatures T-g of high-density amorphous ice (HDA) kept under a pressure of 0.1 and 0.2 GPa. Our ex situ strategy of obtaining these properties and the interpretation of our observations was recently assessed and questioned by Johari [Thermochimica Acta, 2014, 589, 76-84]. Here we reply to the criticism, describe all our measurement and data analysis procedures in detail to reconfirm our earlier interpretation and conclusions. In addition to the more detailed analysis of relaxation times tau(R) we also present an analysis of crystallization times tau(x). The comparison between the two reveals it is possible to significantly relax unannealed HDA (uHDA) at 0.1 and 0.2 GPa prior to its full crystallization. (C) 2016 The Authors. Published by Elsevier B.V.
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