Ion dynamics studies of liquid and glassy silicates, and gas-in-liquid solutions

C. A. Angell, C. A. Scamehorn, C. C. Phifer, R. R. Kaiyala, P. A. Cheeseman

Research output: Contribution to journalArticle

21 Scopus citations

Abstract

We give a brief review of ion dynamics studies of liquid and glassy states of SiO2 and silicate colutions which have been carried out in recent years in this laboratory. We summarize studies on SiO2, Na+ migration in Na2O·SiO2 in the "glassy state", and ionic coordination in multicomponent framework silicates. We present new results on the coordination of Al3+ in albite as a function of pressure and show that it is consistent with results of laboratory studies on albite glasses formed at high pressure. We compare calculated PVT data for jadeite, albite and diopside and relate the behavior of the low pressure compressibility to the spinodal limit at negative pressures. Some preliminary studies of inert gas solution in jadeite and of CO2 solution in a glass having a composition of approximately Na2O·3SiO2 are described.

Original languageEnglish (US)
Pages (from-to)221-227
Number of pages7
JournalPhysics and Chemistry of Minerals
Volume15
Issue number3
DOIs
StatePublished - Feb 1 1988
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Geochemistry and Petrology

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