Abstract
A computer-assisted critical analysis of available phase diagrams and thermodynamic data of the ternary AlF3-CaF2-NaF, AlF3-CaF2-LiF, and CaF2-NaF-LiF systems up to 30 mol pct A1F3, as well as of all binary subsystems was performed. Optimized mathematical expressions for the thermodynamic properties of all phases were obtained. In the case of the binary mixtures, the use of the F0rland equivalent fractions was shown to reduce the number of coefficients needed to represent analytically the enthalpies of mixing. The Conformai Ionic Solution Theory was applied with success to describe the thermodynamic properties of these ternary charge-asymmetrical systems. The binary and ternary phase diagrams were calculated and compared, wherever possible, with experimental investigations.
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Lin, P.L., Pelton, A.D. & Saboungi, M.L. Computer analysis of phase diagrams and thermodynamic properties of cryolite based systems: Part II. The AIF3-CaF2-LiF, AIF3-CaF2-NaF, and CaF2-LiF-NaF systems. Metall Trans B 13, 61–69 (1982). https://doi.org/10.1007/BF02666956
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DOI: https://doi.org/10.1007/BF02666956