Correlation between bulk and surface properties in Cd–X (X = Hg, Mg) liquid alloys

A theoretical investigation of the energetics and its effect on the alloying behaviour of Cd–Hg and Cd–Mg liquid alloys have been carried out with the aim of correlating their bulk and surface phenomena. Using the Quasi-chemical approximation for regular solution model, our results indicate that Cd–Hg and Cd–Mg are weakly heterocoordinated both in the bulk and on the surface. We observed that the degree of chemical order in Cd–Mg liquid alloy is more than that of Cd–Hg liquid alloy.

► Both alloys are weakly heterocoordinated.
► The chemical order both in the bulk and on the surface in Cd–Mg is more than that in Cd–Hg.
► The ordering energy dependence on temperature is confirmed.