Thermodynamic properties of liquid Cu–In–Zn alloys

Abstract

Abstract The partial Gibbs energies of zinc in the liquid Cu–In–Zn system as a function of temperature and concentration were measured in the temperature range between the melting points of the alloys and 1073K using an EMF method with a liquid electrolyte. The thermodynamic properties were determined for 30 alloys at three different constant ratios of Cu:In of 1:2, 1:1, and 2:1 with zinc added in the concentration range between 5 and 90at.%. The integral Gibbs free energy and the integral enthalpy of mixing of the ternary system were calculated with the Gibbs Duhem equation.