Among numerous lead-free solder materials, binary and ternary alloys based on silver present wide and important group. One of possible candidates is the Ag-In-Sb ternary system, which has been a subject of different investigations recently.
The results of thermodynamic study of the Ag-InSb system is presented in the paper. It was investigated experimentally, using Oelsen calorimetry and analitically, using different thermodynamic predicting methods (Hillert, Toop, Kohler, Muggianu, general solution model). Obtained data for partial and integral molar thermodynamic quantities at temperature in range 1000-1200K are presented and compared with existing literature data.
Phase diagram of the Ag-InSb system was investigated and constructed on the base of data obtained by differential thermal analysis, X-ray analysis and optic microscopy.