Thermodynamic assessment of the phase diagrams of the Cu-Sb and Sb-Zn systems |
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Authors: | X J Liu C P Wang I Ohnuma R Kainuma and K Ishida |
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Affiliation: | (1) Department of Materials Science, Graduate School of Engineering, Tohoku University, 980-8579 Sendai, Japan |
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Abstract: | Thermodynamic assessments have been made for the Cu-Sb and Sb-Zn binary systems by means of the CALPHAD technique. The Gibbs
energies of the liquid, bcc, and fcc phases are described by a substitution solution model and a Redlich-Kister formalism.
All of the compounds were treated as stoichiometric compounds. Moreover, the liquidus temperatures of the Zn-rich portion
in the Sb-Zn system were measured to check the unusual shape reported by previous work. It was confirmed that the liquidus
line is not peculiar but smooth. A consistent set of the thermodynamic parameters was optimized to obtain a better fit between
calculated results and experimental data including phase diagram and thermodynamic quantities. |
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