Thermal analysis and thermodynamic prediction of phase equilibria in the ternary Au–Ga–Sb system

Phase transition temperatures of the selected samples with compositions along isopleths: GaSb–AuGa2, GaSb–AuGa, Au–GaSb, Sb–AuGa, GaSb–Au0.3333Sb0.6667 and Ga–Au0.5Sb0.5 were measured using differential scanning calorimetry (DSC). Experimentally determined phase transition temperatures were compared...

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Bibliographic Details
Published in:The Journal of physics and chemistry of solids 2013-02, Vol.74 (2), p.280-285
Main Authors: Manasijević, Dragan, Živković, Dragana, Talijan, Nadežda, Ćosović, Vladan, Gomidželović, Lidija, Todorović, Radiša, Minić, Duško
Format: Article
Language:English
Subjects:
A. Alloys
Antimony
C. Differential scanning calorimetry (DSC)
D. Phase equilibria
D. Phase transitions
Differential scanning calorimetry
Gold
Isopleths
Mathematical analysis
Phase equilibria
Phase transformations
Thermodynamics
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Summary:Phase transition temperatures of the selected samples with compositions along isopleths: GaSb–AuGa2, GaSb–AuGa, Au–GaSb, Sb–AuGa, GaSb–Au0.3333Sb0.6667 and Ga–Au0.5Sb0.5 were measured using differential scanning calorimetry (DSC). Experimentally determined phase transition temperatures were compared with the results of thermodynamic calculation. Also, predicted phase equilibria at room temperature were compared with the literature experimental data. ► Au–Ga–Sb phase diagram was investigated using DSC and thermodynamic prediction. ► GaSb–AuGa2 and GaSb–AuGa sections were determined as simple quasibinary eutectic systems. ► Liquidus surface temperatures and four invariant reactions were obtained.
ISSN:0022-3697
1879-2553
DOI:10.1016/j.jpcs.2012.09.019