Thermodynamics of liquid Cu-Sn alloys

Abstract

The large deviation from the ideal mixture behavior and concentration dependent asymmetry in the thermodynamic properties of Cu₃Sn liquid alloys is investigated within a simple theoretical model of heterocoordination (i.e. a model in which there is a preference for unlike atoms pairing as nearest neighbors). The analysis suggest that hetero coordination leading to the formation of chemical complexes Cu₃Sn is likely to exist in the melt but is only of a weakly interacting nature. The system exhibits almost ideal behavior at Sn-rich end.

DOI: 10.3126/jncs.v21i0.218

Journal of Nepal Chemical Society Vol.21 2006 pp.26-29