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Effect of fluorine content on the crystallization and flexural strength of fluoro-mica glass ceramics

Authors
Journal
Ceramics International
0272-8842
Publisher
Elsevier
Volume
39
Issue
4
Identifiers
DOI: 10.1016/j.ceramint.2012.10.275
Keywords
  • Fluorine
  • Crystallization
  • Flexural Strength
  • Fluoro Mica Glass Ceramic

Abstract

Abstract Two glasses with different contents of fluorine were fabricated. A single phase, KMg3.25Si3.625O10F2, precipitated in both of the glass samples after heat treatment. Both the crystallization activation energy (En) and the frequency factor (ν) increased with increasing fluorine content. This means that the fluorine content has a dual effect on the crystallization of fluorosilicic mica glass; the effect on the frequency factor is predominant. The flexural strength of the as-cerammed glass ceramic containing more fluorine is larger than that containing less fluorine when heated to the same temperature.

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