Abstract
The phase equilibria for the MCl2-ThCl4(M: Mg, Ca, Sr, Ba) binary systems were critically evaluated and optimized based upon the CALPHAD approach. The substitutional solution model(SSM) was used to describe the liquid phase. All the intermediate compounds were treated as stoichiometric compounds of which Gibbs energies comply with the Neumann-Kopp rule. Thermodynamic model parameters optimization for respective phases was conducted by the least squares minimization procedure with required input data available from experimental measurements. Satisfactory agreements between all calculated results and experimental data were achieved which demonstrates that thermodynamic databases for the MCl2-ThCl4(M: Mg, Ca, Sr, Ba) binary systems were ultimately derived in the present work allowing safe extrapolation into multi-component system for guiding relative industrial applications.
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Supported by the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XD02002400).
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Xie, M., Li, X., Ding, Y. et al. Thermodynamic description of the MCl2-ThCl4 (M: Mg, Ca, Sr, Ba) systems. Chem. Res. Chin. Univ. 33, 794–798 (2017). https://doi.org/10.1007/s40242-017-7033-x
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DOI: https://doi.org/10.1007/s40242-017-7033-x