Abstract
The thermodynamics of phase diagrams with a miscibility gap and a congruently melting compound and phase diagrams with two miscibility gaps are treated using the Hoch-Arpshofen solution model and the Schottky- Wagner disorder model. We extended the Schottky-Wagner disorder model to the liquid phase. In phase diagrams with two miscibility gaps, a liquid compound between the two miscibility gaps must be present to obtain consistent thermodynamic data. We treated the Rb-I2, Au-Se, and Sn-S binary systems.
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Hoch, M. Thermodynamics of binary phase diagrams with a miscibility gap and a congruently melting compound and binary phase diagrams with two miscibility gaps. JPE 14, 296–302 (1993). https://doi.org/10.1007/BF02668227
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DOI: https://doi.org/10.1007/BF02668227