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

通讯作者：E-mail address: [email protected] (X.J. Liu).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.National Natural Science Foundation of China 51031003 Ministry of Education of China 707037 Ministry of Science and Technology of China 2009DFA52170 2009AA03Z101 Doctoral Foundation of Qingdao University of Science and Technolog