Journal
INTERMETALLICS
Volume 14, Issue 7, Pages 826-831Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.intermet.2005.12.002
Keywords
intermetallics; miscellaneous; phase diagrams; thermal properties; phase diagram; prediction
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The Ga-Pt binary system has been thermodynamically assessed by means of the computer program Thermo-Calc. The Redlich-Kister polynomial was used to describe the solution phases, liquid (L) and fee (Pt). The compounds, Ga6Pt. Ga7Pt3. Ga7Pt. Ga3Pt2. GaPt. Ga3Pt5 and GaPt2. were treated its stoichiometric phases. The sublattice-compound energy model was employed to describe the compound GaPt3, with a homogeneity range. The parameters of the Gibbs energy expressions were optimized according to all the available experimental information of both the equilibrium data and the thermodynamic results. A set of self-consistent thermodynamic parameters of the Ga-Pt system has been obtained. The calculations agree well with the respective experimental data. (c) 2006 Elsevier Ltd. All rights reserved.
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