Internal Friction in Lithium Aluminosilicate Glass‐Ceramics

Vera A. Versteeg, David L Kohlstedt

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12 Scopus citations


This paper describes the results of an investigation of the anelastic behavior of two glass‐ceramic materials with similar compositions, one nucleated with TiO2 and the other with ZrO2. The influence of the grain size, residual glass fraction, and composition was examined. A low‐frequency torsion pendulum was constructed for this purpose. The as‐received TiO2‐nucleated. Corning Code 9608 ceramic exhibits an attenuation peak at about 750°C; when heat‐treated at 1200°C for 167 h, the attenuation peaks at approximately 850°C. The ZrO nucleated glass‐ceramic showed no such peak. Our results indicate that this anelastic behavior is due to grain boundary sliding, but the rates and magnitude of sliding are strongly dependent on boundary chemistry.

Original languageEnglish (US)
Pages (from-to)1169-1177
Number of pages9
JournalJournal of the American Ceramic Society
Issue number5
StatePublished - May 1994


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