Author:
Müller Eberhard,Heide Klaus,Zanotto Edgar Dutra
Abstract
Abstract
By comparing the available structural parameters of silicate glasses and crystals of the same composition, the correlations between the nucleation behaviour of a glass and its short and middle range order, specially the coordination of the modifier cations, are discussed. There are glass systems which nucleate homogeneously (Li2O · SiO2, Na2O · SiO2, CaO · SiO2, Li2O · 2SiO2, BaO · 2SiO2, CaO · A12O3 · 2 SiO2) and systems which nucleate only heterogeneously (PbO · SiO2, CaO · MgO · 2SiO2, Na2O · 2SiO2, Na2O · A12O3 · 6SiO2).
It is demonstrated that changes in the cation coordination during the formation of the long range order play an important role for nucleation behaviour.
Subject
Inorganic Chemistry,Condensed Matter Physics,General Materials Science
Cited by
18 articles.
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