Thermodynamic properties of liquid Na-Cd and Na-In

Abstract

New measurements of the free energy and entropy of mixing and the associated thermodynamic properties of liquid Na-Cd and Na-In alloys are reported. It is inferred that there exists some kind of short-range order of Na, whilst there is a phase separation tendency in the alloys in the Na-rich region. These contradictory features are interpreted in terms of the interchange energies in the alloys which vary as a function of Na concentration.