Thermodynamic Properties of Liquid Cd-Mg and Cd-Ga Alloys

摘要

The concentration dependent thermodynamic properties and surface tension of liquid Cd-Mg and Cd -Ga alloys have been investigated theoretically on the basis of the existence of a 1-1 type of association in me molten state. The free energies of mixing, heat of mixing, entropy of mixing and the activity ratio are found to be in agreement with the experimental values. The positive value of S_(Cc)(0)- S_(cc)t~(10) (0) indicates a preference for like atoms pairing in the case of liquid Cd-Ga alloy. The surface concentration of Cd suggests that the surface is enriched by Cd-atoms due to surface tension effect.