Glass transition has been investigated as a freezing-in process by using a simple form of the Gibbs free energy with two order parameters. Two cases are examined: that of a single freezing-in line (transition line) and that involving two different lines on which the individual order parameter freezein gradually. The latter case is a simple, but adequate description of the diffusivity of glass transition. The effect is discussed of the mutual position of freezing-in lines and of the Prigogine-Defay ratio on the dependence of the behaviour of material on the thermodynamic history of glass transition.
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Havlíček, I., Marvan, M. A simple phenomenological model for the order parameter description of glass transition. Polymer Bulletin 7, 623–629 (1982). https://doi.org/10.1007/BF00256096
- Free Energy
- Glass Transition
- Gibbs Free Energy
- Simple Form