Simple model for the structure and thermodynamics of liquid alloys with strong chemical interactions. II. Chemical order and packing constraints

This is the authors' abstract. We don't add key points for this paper.

A model presented recently by the authors for the structure and thermodynamics of liquid alloys with strong chemical interactions is applied to Na-Pb and Na-Sn. They show that the thermodynamic 'anomalies' observed in these systems arise from the interplay of ordering effects induced by a preferred interaction between unlike atoms and packing effects. They demonstrate that the structural implications of the model are supported by a diffraction experiment.