Pressure dependence of the elastic moduli of glasses in the K2OSiO2 system

E. Gamberg, D. R. Uhlmann, D. H. Chung

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

The elastic moduli and their variation with pressure have been determined for three glass compositions in the K2OSiO2 glass system. The results may be summarized: {A table is presented}. Additionally, the heat capacities of the three compositions were determined over the temperature range of 320 to 700 K, and were used together with the other data to evaluate the thermal Grüneisen ratios. This parameter was found to increase with increasing K2O concentration, with values of 0.48, 0.63 and 0.69 for the three compositions indicated above. For comparison, the acoustic Grüneisen ratios evaluated from the variation of the moduli with pressure were found to be negative and also to increase with increasing K2O concentration.

Original languageEnglish (US)
Pages (from-to)399-408
Number of pages10
JournalJournal of Non-Crystalline Solids
Volume13
Issue number3
DOIs
StatePublished - Mar 1974
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Materials Chemistry

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