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Thermodynamic assessment of the Sb-Sm and Sm-Sn systems

  • X. J. Liu
  • , M. H. Chen
  • , Y. Lu
  • , Y. X. Huang
  • , D. Wang
  • , Q. He
  • , D. L. Zhao
  • , C. P. Wang*
  • *Corresponding author for this work
  • Xiamen University
  • China Iron and Steel Research Institute Group

Research output: Contribution to journalArticlepeer-review

Abstract

The thermodynamic assessment of the Sb-Sm and Sm-Sn binary systems have been carried out by using the CALPHAD (CALculation of PHAse Diagrams) method on the basis of the experimental data including phase equilibria and thermodynamic properties. The Gibbs free energies of the solution phases (Liquid, Bcc, Bct, Hcp and Rhombohedral phase) were described by the subregular solution model with the Relich-Kister polynomial, and those of the intermetallic compounds were described by the two-sublattice model. A consistent set of thermodynamic parameters has been derived for describing the Gibbs free energies of each phase in the Sb-Sm and Sm-Sn systems. A reasonable agreement was obtained between the calculated results and experimental data.

Original languageEnglish
Pages (from-to)129-135
Number of pages7
JournalCalphad: Computer Coupling of Phase Diagrams and Thermochemistry
Volume47
DOIs
StatePublished - Dec 2014
Externally publishedYes

Keywords

  • CALPHAD method
  • Rare earth alloys
  • Thermodynamic calculation

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