Thermodynamic reassessment of the AuIn binary system

Through CALPHAD method, the AuIn binary system has been thermodynamically reassessed. The excess Gibbs energies of the solution phases, liquid, fcc, α1, and hcp were formulated with Redlich-Kister expression, while the γ and Ψ phases with narrow homogeneity ranges were described with sublattice models, and other intermetallic phases were treated as stoichiometric compounds. A set of self-consistent parameters has been obtained, which can reproduce most experimental data of thermodynamic properties and phase diagram of this binary system. Additionally, the standard formation enthalpies of all intermediate phases have also been calculated.