Thermodynamic evaluation of the germanium-lutetium and dysprosium-germanium binary systems

• Published in: Calphad Vol. 62; pp. 18 - 29
• Main Authors: Achgar, Khadija, Selhaoui, Najim, Iddaoudi, Abdellah, Tamim, Rkia, Azza, Hassan, Bouirden, Lahcen
• Format: Journal Article
• Language: English
• Published: Elmsford Elsevier Ltd 01.09.2018; Elsevier BV
• Subjects: Binary system; Binary systems; CALPHAD method; Computer simulation; Dysprosium; Ge-Lu and Dy-Ge binary systems; Germanium compounds; Heat treating; Intermetallic compounds; Lattices (mathematics); Liquid phases; Lutetium; Modelling; Phase diagrams; Phase equilibria; Phase transitions; Redlich–Kister and Kaptay equations; Solid solutions; Subgroups; Temperature dependence; Thermodynamic equilibrium; Thermodynamic evaluation; Thermodynamic models; Thermodynamic properties; Thermodynamics; Redlich–Kister and Kaptay equations; Phase diagrams; CALPHAD method; Thermodynamic evaluation; Ge-Lu and Dy-Ge binary systems

The Ge-Lu and Dy-Ge binary systems have been optimized using the available experimental data on phase diagrams and thermodynamic functions by means of the CALPHAD approach. The Ge-Lu system contains seven phases based on six intermetallic compounds: Ge1.8Lu, Ge3Lu2, Ge5Lu4, Ge10Lu11, Ge4Lu5, and Ge3...