Abstract

The cluster model of Cohen and Sak (1972) for anomalous liquid alloys is examined. The existence of clusters within the alloy large enough to be used in this model implies a concentration fluctuation, which can be evaluated exactly for dilute alloys. This calculated concentration fluctuation is in general much larger than that deduced thermodynamically from experiment, which strongly suggests that real alloys do not contain such clusters. Data are presented for Mg-Bi and Tl-Te alloys.

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