THERMODYNAMIC STUDY OF LIQUID MG-IN-SN ALLOYS

Liquid Mg-In-Sn alloys were studied by the emf method using concentrat ion cells with liquid electrolyte, Experiments were performed for 30 a lloys along three sections on the Gibbs triangle with constant t = 0.2 5, 0.50, 0.75 [t = X(Sn)/(X(Sn) + X(In))] and for magnesium concentrat ion from 0.1 to 0.65 at temperatures from 950 to 1100 K. From the chan ge of the slope of the emf versus T, points on the liquidus surface fo r sixteen alloys were detected, Calculated partial excess Gibbs energi es Delta G(Mg)(ex), and partial enthalpies Delta H-Mg were compared wi th the results of previous work.