The slope equations: A universal relationship between local structure and glass transition temperature |
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Authors: | M Micoulaut |
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Institution: | (1) Laboratoire GCR (CNRS URA 769), Université Pierre et Marie Curie, Tour 22, Boite 142, 4 Place Jussieu, 75252 Paris Cedex 05, France, FR |
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Abstract: | In this article, we present a universal relationship between the glass transition temperature and the local glass structure. The derivation of the simplest expression of this relationship and some comparisons with experimental
values have already been reported in a recent letter. We give here the analytical expression of the parameter of the Gibbs-Di Marzio equation and also new experimental probes for the validity of the relationship, especially in low
modified binary glasses. The influence of medium range order is presented and the unusual behavior of in binary and systems explained by the presence of modifier-rich clusters (denoted by doublets).
Received: 3 September 1997 / Received in final form and accepted: 17 November 1997 |
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Keywords: | PACS 61 20 Ne Structure of simple liquids - 81 20 Zx Other methods of materials synthesis and materials processing |
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