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Thermodynamic evidence for clustering in liquid Ga-Te alloys

Johnston, S.F. (1981) Thermodynamic evidence for clustering in liquid Ga-Te alloys. Philosophical Magazine B, 43 (5). pp. 937-940. ISSN 1364-2812 (doi:10.1080/01418638108222359)

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Abstract

A model for enthalpy of mixing has been fitted to experimental data of Castanet and Bergman for liquid Ga-Te alloys. The model (due to McCalister and Crozier) assumes the alloy melt to consist of clusters of stoichiometric components plus the excess element, and permits the molecules to be partially dissociated even at the stoichiometric composition. By assuming the existence of Ga2Te3 clusters, and adjusting two parameters (associated with fraction at 60at.% Te = 0.45 ± 0.03 and enthalpy of formation = 86 kJ/mole-molecule, the model was fitted to within the experimental error, except for a systematic deviation which is ascribed to the formation of GaTe clusters.

Item Type:Article
Status:Published
Refereed:Yes
Glasgow Author(s):Johnston, Prof Sean
Authors: Johnston, S.F.
Subjects:Q Science > QC Physics
Q Science > QD Chemistry
College/School:College of Social Sciences > School of Interdisciplinary Studies
Journal Name:Philosophical Magazine B
Journal Abbr.:Phil. Mag. B
ISSN:1364-2812
ISSN (Online):1463-6417
Published Online:20 August 2006

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