Calculation of phase equilibria of the Ag-In-Sb system by the calphad method

Abstract

The ternary Ag-In-Sb system is a promising candidate for use as a Pb-free solder. The results of phase equilibria calculation by the CALPHAD method are presented in this study. The isothermal section at 400°C was calculated using optimized thermodynamic parameters of the constitutive binary systems. Calculated vertical sections from the indium and antimony corners were compared with the DTA results from this study and from the literature.

Keywords

• Ag-In-Sb system
• phase equilibria
• CALPHAD method
• DTA