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Thermodynamic assessments of the Er-Sb and Sb-Tm systems

  • S. L. Wang
  • , Z. B. Hu
  • , F. Gao
  • , C. P. Wang
  • , X. J. Liu*
  • *Corresponding author for this work
  • Longyan University
  • Qingdao University of Science and Technology
  • Xiamen University

Research output: Contribution to journalArticlepeer-review

Abstract

By using the calculation of phase diagrams (CALPHAD) method, thermodynamic assessments of the Er-Sb and Sb-Tm systems were carried out based on the available experimental data including thermodynamic properties and phase equilibria. The Gibbs free energies of the liquid, hcp, and rhombohedral phases in the Er-Sb and Sb-Tm systems were modeled by the substitutional solution model with the RedlichKister formula, and the intermetallic compounds (Er 5Sb3, αEr-Sb, βEr-Sb, Er-Sb2, Sb2Tm, αSb-Tm, βSb-Tm, α Sb3Tm 5, and β Sb3Tm5 phases) in these two binary systems were described by the sublattice model. An agreement between the present calculated results and experimental data was obtained.

Original languageEnglish
Pages (from-to)473-478
Number of pages6
JournalCalphad: Computer Coupling of Phase Diagrams and Thermochemistry
Volume35
Issue number4
DOIs
StatePublished - Dec 2011
Externally publishedYes

Keywords

  • CALPHAD
  • Er-Sb system
  • Phase diagram
  • Sb-Tm system

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