A thermodynamic assessment of the Ag-Au-Sb ternary system has been carried out using the CALPHAD method based on new thermodynamic and phase equilibria data that we have recently determined. The Ag-Sb binary system has also been reoptimized. The calculated phase diagram and thermodynamic properties of the ternary system Ag-Au-Sb show satisfactory general agreement with the experimental data. The liquidus projection and monovariant valleys of the ternary system are well reproduced by the optimized thermodynamic model parameters. Additional experiments to confirm the proposed reaction scheme, which involves two ternary transition peritectic reactions, are suggested.
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Acknowledgments
The authors are grateful to Dr. D. Boa (Laboratoire de Thermodynamique et de Physico-Chimie du Milieu, Université d’Abobo-Adjamé, UFR-SFA, 02 BP 801 Abidjan 02, Côte d’Ivoire) for useful advises on heat of mixing determination of ternary liquid alloys.
They are also grateful to Ivorian Government for financial support.
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Zoro, E., Servant, C. & Legendre, B. Thermodynamic Modeling of the Ag-Au-Sb Ternary System. J Phs Eqil and Diff 28, 250–257 (2007). https://doi.org/10.1007/s11669-007-9085-y
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DOI: https://doi.org/10.1007/s11669-007-9085-y