Phase equilibria and thermodynamics in the Al(2)O(3)-SiO(2) system: Modeling of mullite and liquid
2005 (English)In: Journal of The American Ceramic Society, ISSN 0002-7820, E-ISSN 1551-2916, Vol. 88, no 9, 2544-2551 p.Article in journal (Refereed) Published
The AI(2)O(3)-SiO2 system has been reassessed using a solution model for mullite extending from sillimanite to a hypothetical state of alumina. The property of sillimanite, to be used to describe one of the end-members, was extracted from an analysis of the T-P phase diagram for AI(2)SiO(5) polymorphs. It was possible to represent the information on the range of stability of mullite, including some showing that mullite extends to higher SiO2 contents than represented by the composition of 3:2 mullite. An attempt was made to model the liquid with the ionic two-sublattice model using a new species AIO(2)(-1). The pressure dependence of AI(2)SiO(5) polymorphs was optimized by a new model recently implemented in Thermo-Cale.
Place, publisher, year, edition, pages
2005. Vol. 88, no 9, 2544-2551 p.
CRYSTAL-STRUCTURE; HIGH-PRESSURE; DEGREES C; ALUMINUM SILICATES; AL2SIO5 POLYMORPHS; KYANITE-ANDALUSITE; TRIPLE POINT; SILLIMANITE; COMPRESSIBILITY; DIAGRAM
IdentifiersURN: urn:nbn:se:kth:diva-5238DOI: 10.1111/j.1551-2916.2005.00440.xISI: 000231634800036ScopusID: 2-s2.0-27644590017OAI: oai:DiVA.org:kth-5238DiVA: diva2:8111
QC 201006032005-06-012005-06-012011-11-09Bibliographically approved