Abstract
A critical evaluation and thermodynamic optimization of all the available literature experimental data of the CaO-CaF2 system was conducted to obtain a set of thermodynamic functions which can reproduce all available and reliable experimental phase diagrams and thermodynamic data. The liquid solution was described using the Modified Quasichemical Model which assumes the mixing of O2 and F− in the pseudo anionic sublattice and CaF2 solid solution was described using the compound energy formalism. The discrepancies in the CaO and CaF2 liquidii among the available experimental data were resolved. The recent experimental data on the solubility of CaO in solid CaF2 phase were well reproduced, which is critical to explain the eutectic temperature of the system.
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This project was supported by a CRD grant from the Natural Sciences and Engineering Research Council (NSERC) of Canada in collaboration with RIST, POSCO, and Tata Steel Europe.
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Manuscript submitted March 26, 2012.
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Kim, DG., Van Ende, MA., van Hoek, C. et al. A Critical Evaluation and Thermodynamic Optimization of the CaO-CaF2 System. Metall Mater Trans B 43, 1315–1325 (2012). https://doi.org/10.1007/s11663-012-9733-4
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DOI: https://doi.org/10.1007/s11663-012-9733-4