Optimization and Calculation of the CeCl_3-MCI (M=Li, Na, K, Rb, Cs) Phase Diagrams

摘要

By using CALPHAD (Calculation of Phase Diagram) technique an optimization of the binary CeCl_3-MCl (M = Li, Na, K, Rb, Cs) systems has been carried out. For describing the Gibbs energies of liquid phase in these systems the new modified quasichemical model in the pair-approximation for short-range ordering was used. From measured phase equilibria data and experimental integral properties the CeCl_3-MCl phase diagrams were optimized and calculated. A set of thermodynamic functions has been optimized based on an interactive computer-assisted analysis. The calculated phase diagrams and thermodynamic data are self-consistent.