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Two Species/Nonideal Solution Model for Amorphous/Amorphous Phase Transitions

Published online by Cambridge University Press:  10 February 2011

Cornelius T. Moynihan
Cornelius T. Moynihan*
Affiliation:
Materials Science and Engineering Department, Rensselaer Polytechnic Institute, Troy, NY 12180–3590, moynic@rpi.edu
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Abstract

A simple macroscopic thermodynamic model for first order transitions between two amorphous phases in a one component liquid is reviewed, augmented and evaluated. The model presumes the existence in the liquid of two species, whose concentrations are temperature and pressure dependent and which form a solution with large, positive deviations from ideality. Application of the model to recent data indicates that water can undergo an amorphous/amorphous phase transition below a critical temperature Tc of 217K and above a critical pressure Pc of 380 atm.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 455: Symposium T – Glasses and Glass Formers–Current Issues , 1996 , 411
Copyright
Copyright © Materials Research Society 1997

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