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Title: Thermodynamic consequences of the kinetic nature of the glass transition
Authors: Koperwas, Kajetan
Grzybowski, Andrzej
Tripathy, Satya N.
Masiewicz, Elżbieta
Paluch, Marian
Keywords: phase transitons; critical phenomena; thermodynamics; glass transition
Issue Date: 10-Dec-2015
Citation: Scientific Reports, 2015, [10 December], art. no 17782
Abstract: In this paper, we consider the glass transition as a kinetic process and establish one universal equation for the pressure coefficient of the glass transition temperature, dTg/dp, which is a thermodynamic characteristic of this process. Our findings challenge the common previous expectations concerning key characteristics of the transformation from the liquid to the glassy state, because it suggests that without employing an additional condition, met in the glass transition, derivation of the two independent equations for dTg/dp is not possible. Hence, the relation among the thermodynamic coefficients, which could be equivalent to the well-known Prigogine-Defay ratio for the process under consideration, cannot be obtained. Besides, by comparing the predictions of our universal equation for dTg/dp and Ehrenfest equations, we find the aforementioned supplementary restriction, which must be met to use the Prigogine-Defay ratio for the glass transition.
DOI: 10.1038/srep17782
ISSN: 2045-2322
Appears in Collections:Artykuły (WNŚiT)

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