Use of the Adam‐Gibbs Equation in the Analysis of Structural Relaxation

GEORGE W. SCHERER

Research output: Contribution to journalArticle

364 Scopus citations

Abstract

Narayanaswamy's model of structural relaxation has been shown to provide an excellent description of the behavior of a variety of glasses. In the standard formulation, the relaxation time, τ is represented by the Arrhenius equation, with the activation energy partitioned between the temperature and Active temperature. That form for τ is successful, but lacks theoretical justification. In this paper, the Adam‐Gibbs equation is shown to describe accurately both τ and the viscosity of NBS 710 (alkali lime silicate) glass. This equation is expected to be accurate over a wider range of temperature and Active temperature than the Arrhenius equation.

Original languageEnglish (US)
Pages (from-to)504-511
Number of pages8
JournalJournal of the American Ceramic Society
Volume67
Issue number7
DOIs
StatePublished - Jul 1984

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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