Thermodynamic Assessment Of Eucl3-Mgcl2 And Eucl3-Bacl2 Systems

Using the CALPHAD technique, an assessment of the binary EuCl3-MgCl2 and EuCl3-BaCl2 systems has been carried out in this study. The modified quasi-chemical model was defined to describe the Gibbs energies of the liquid phases, and the model parameters were optimized from the experimental phase diagram data. The phase diagrams and enthalpies of mixing of the EuCl3-MgCl2 and EuCl3-BaCl2 systems were calculated. The calculated results by the present method agree well with the experimental data. The Gibbs energies of formation of Mg3Eu2Cl12, Ba3Eu2Cl12, and Ba2Eu3Cl13 from the pure components were predicted.