Thermodynamic properties of liquid copper–indium–tin alloys determined from e.m.f. measurements

The thermodynamics properties of liquid Cu–In–Sn alloys were determined using solid oxide galvanic cells with zirconia electrolyte:equation(I)Re+kanthal,Cux-Iny-Sn(1-x-y),‘In2O3’//ZrO2+(Y2O3)//NiO,Ni,Ptin the temperature range (973 to 1223) K. Applied In2O3 can be either pure or in the solid solutions with SnO2.Thermodynamics properties of the liquid phase were described by the Redlich–Kister–Muggianu formula. Using the commercial software different phase relations in the ternary system were calculated and compared with experimental data found in the literature.