Relation between potential of binary liquid alloys and composition of intermetallic compounds contained therein

Abstract

For systems of binary liquid alloys for which the existence of defined intermetallic compounds in the solid state had been proved, a theoretical expression was derived for the relation between the electrode potential and the composition of liquid alloys under the assumption that intermetallic compounds can exist even in liquid alloys. It was further shown that, for limited conditions, such a relation is of the same form as that obtained for binary systems on the basis of the theory of regular solutions if no formation of intermetallic compounds is considered. These results lead to the conclusion that the validity of the relation based on the theory of regular solutions of simple binary systems is far from being a proof that the existence of intermetallic compounds in such liquid binary alloys is impossible.