Thermodynamic description of BaO-SrO-TiO2 system

The thermodynamic descriptions of the BaO-SrO-TiO2 pseudo-ternary and its lower order sub-systems have been made by critically evaluating all available experimental data. The temperature-dependent Gibbs energies of perovskite structural phases were evaluated to be relative to the standard element reference state (SER). The substitutional solution model for liquid and line compounds, Neumann-Kopp Rule for stoichiometric compounds were adopted. A set of self-consistent parameters reproducing most of the corresponding experimental data has been obtained.