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Model of Structural Relaxation in Glass with Variable Coefficients
Author(s) -
Scherer George W.,
Rekhson Simon M.
Publication year - 1982
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1982.tb10462.x
Subject(s) - thermodynamics , relaxation (psychology) , work (physics) , constant (computer programming) , temperature coefficient , materials science , glass transition , function (biology) , mineralogy , mathematics , chemistry , physics , composite material , polymer , computer science , psychology , social psychology , evolutionary biology , biology , programming language
The model of structural relaxation by Narayanaswamy deals only with the constant temperature coefficients of the glass property, p. The assumption is seldom valid for real glasses. In this work, equations are obtained for the fictive temperature of glass if the temperature coefficient, dp/dT, is a linear function of T or of 1 /T 2 . The temperature dependence of p has no significant influence on the calculated fictive temperatures.