Preprint Hypothesis Version 1 This version is not peer-reviewed

Universality in Glass Transitions

Version 1 : Received: 22 September 2018 / Approved: 24 September 2018 / Online: 24 September 2018 (12:44:06 CEST)

How to cite: Tsekov, R.; Spassov, T. Universality in Glass Transitions. Preprints 2018, 2018090456 (doi: 10.20944/preprints201809.0456.v1). Tsekov, R.; Spassov, T. Universality in Glass Transitions. Preprints 2018, 2018090456 (doi: 10.20944/preprints201809.0456.v1).

Abstract

The Vogel-Fulcher-Tammann equation is exposed as a particular example of the mean field theory. It is generalized by taking into account an arbitrary critical exponent of susceptibility, discriminating between different classes of universality. The Bell-Evans-Polanyi principle is employed to estimate the difference between the activation energies of flows in crystals and glasses, which appears to coincide with the excess Gibbs energy of the glass compared to the crystal.

Subject Areas

glass transitions, universality, Bell-Evans-Polanyi principle

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