Thermodynamic assessments of the Er-Sb and Sb-Tm systems
S.L. Wang ( Longyan Univ, Coll Chem & Mat Sci)
Z.B. Hu ( Longyan Univ, Coll Chem & Mat Sci) untranslated
F. Gao ( Qingdao Univ Sci & Technol, Coll Mat Sci & Engn)
- 化学化工－已发表论文 
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 Redlich-Kister formula, and the intermetallic compounds (Er(5)Sb(3), alpha ErSb, beta ErSb, ErSb(2), Sb(2)Tm, alpha SbTm, beta SbTrn, alpha Sb(3)Tm(5), and beta Sb(3)Tm(5) phases) in these two binary systems were described by the sublattice model. An agreement between the present calculated results and experimental data was obtained.