A thermodynamic assessment of silica phase diagram

V. Swamy, S. K. Saxena, B. Sundman, J. Zhang

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An internally consistent data set on the thermodynamic properties of the silica polymorphs stable up to 15 GPa and the liquid phase is presented. The data set can be used to calculate phase relations at pressures of 0.1 MPa to 15 GPa and temperatures of 300 to 3200 K. The calculated phase diagram using these data agrees quite well with the phase equilibrium determinations except for the high-temperature part of the coesite-stishovite boundary. -from Authors

Original languageEnglish
Pages (from-to)11,787-11,794
JournalJournal of Geophysical Research
Issue numberB6
Publication statusPublished - 1994
Externally publishedYes

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