Thermodynamic properties of liquid Sc-Al alloys: model calculations and experimental data

Thermodynamic information available for binary scandium-aluminium system has been obtained earlier by e.m.f. and calorimetry methods and also by semi-empirical approaches described in literature. In this work these data were reconsidered for all intermetallides in Sc-Al system. To calculate the excess thermodynamic functions of liquid Sc-Al alloys special computer program package have been used. The enthalpies of mixing of liquid scandium and aluminium were found in all the composition range of the phase diagram at the temperatures 1873, 1973 and 2073 K.