DOI: 10.1029/93jb02968. A thermodynamic assessment of silica phase diagram

A thermodynamic assessment of silica phase diagram

10.1029/93jb02968

Crossref journal-article

American Geophysical Union (AGU)

Journal of Geophysical Research: Solid Earth (13)

Abstract

An internally consistent data set on the thermodynamic properties of the silica polymorphs stable up to 15 GPa (α‐quartz, β‐quartz, tridymite, cristobalite, coesite, and stishovite) and the liquid phase is presented. The data set was produced through a computer‐based assessment of the properties in which the available thermochemical (calorimetric), physical (bulk modulus and thermal expansion), and solid‐state and melting transition data (including some newly determined data on the high‐pressure polymorphs cosite and stishovite) were considered. 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 coesitestishovite boundary. The properties of the liquid phase obtained are also in good agreement with the available data.

Bibliography

Swamy, V., Saxena, S. K., Sundman, B., & Zhang, J. (1994). A thermodynamic assessment of silica phase diagram. Journal of Geophysical Research: Solid Earth, 99(B6), 11787â11794. Portico.

Authors 4

V. Swamy (first)
Surendra K. Saxena (additional)
Bo Sundman (additional)
J. Zhang (additional)

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Dates

Type	When
Created	21 years, 6 months ago (Feb. 3, 2004, 7:24 p.m.)
Deposited	1 year, 11 months ago (Sept. 23, 2023, 7:44 a.m.)
Indexed	3 weeks, 4 days ago (July 30, 2025, 11:21 a.m.)
Issued	31 years, 2 months ago (June 10, 1994)
Published	31 years, 2 months ago (June 10, 1994)
Published Online	12 years, 11 months ago (Sept. 20, 2012)
Published Print	31 years, 2 months ago (June 10, 1994)

Funders 0

None

BibTeX

@article{Swamy_1994, title={A thermodynamic assessment of silica phase diagram}, volume={99}, ISSN={0148-0227}, url={http://dx.doi.org/10.1029/93jb02968}, DOI={10.1029/93jb02968}, number={B6}, journal={Journal of Geophysical Research: Solid Earth}, publisher={American Geophysical Union (AGU)}, author={Swamy, V. and Saxena, Surendra K. and Sundman, Bo and Zhang, J.}, year={1994}, month=jun, pages={11787–11794} }

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