Thermodynamics Research Center / ThermoML | Thermochimica Acta

ABSTRACT

A Calvet type calorimeter was used for measurement of partial and integral enthalpies of mixing of Ag Ga Sn alloys. The Ag Ga binary alloys have been studied with 0 less than xAg less than 0.79 composition and in the 803 1073 K temperature range. The mixing enthalpies at 803 K of Ga Sn binary alloys have been determined for xSn less than 0.35. The Ag Ga Sn ternary liquid alloys have been investigated at 803 K along the following sections: xAg/xGa = 1/3, xAg/xGa = 0.36/0.64, xAg/xGa = 1/1, xGa/xSn = 1/3, xGa/xSn = 1/1, xGa/xSn = 0.65/0.35 and xGa/xSn = 3/1. Experimental data were used to obtain the binary interaction parameters by using the Redlich Kister polynomial for the Ag Ga binary system, while the Redlich Kister Muggianu method was used to determine the ternary interaction parameters for the Ag Ga Sn system. The experimental values and the fitted curves were compared with those predicted from the Muggianu and Toop methods.