The compound energy model for ionic solutions with applications to solid oxides |
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| Authors: | T I Barry A T Dinsdale J A Gisby B Hallstedt M Hillert B Jansson S Jonsson B Sundman and J R Taylor |
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| Affiliation: | (1) Division of Materials Metrology National Physical Laboratory Teddington, TW11 OLW Middlesex, UK;(2) Dio. Physical Metallurgy, Royal Institute of Technology, S- 10044, Stockholm, Sweden;(3) Johnson Matthey Technology Centre Sonning Common, RG4 9NH Reading, Berkshire, UK |
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| Abstract: | The application of the compound energy model to crystalline ionic phases is discussed and compared with the regular solution
model. Its application to solutions with reciprocal reactions between cations on different sublattices is discussed with special
reference to oxides. Examples are taken from various solutions between spinels, including cases with vacancies and interstitials.
Problems connected with the choice of a state of reference for charged components in a multicomponent solution are addressed.
This paper was presented at the International Phase Diagram Prediction Symposium sponsored by the ASM/MSD Thermodynamics and
Phase Equilibria Committee at Materials Week, October21-23,1991, in Cincinnati, Ohio. The symposium was organized by John
Morral, University of Connecticut, and Philip Nash, Illinois Institute of Technology. |
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