Thermodynamic evaluation of the Bi-Ge system

Pierre-Yves Chevalier (1)

1 THERMODATA - THERmodynamique et MAtériaux

Available experimental information concerning thermodynamic properties and phase equilibria data has been compiled for the assessment of new self-consistent parameters of thermodynamic models of liquid and solid phases in the Bi-Ge system. These coefficients have been optimized using a program developed by Lukas et al. Calphad, 1 (1977) 225. The phase diagram and the enthalpy of mixing of the liquid phases have been calculated and compared with the experimental values using the THERMODATA software. A very satisfactory agreement has been obtained by using five optimized coefficients with a simple substitutional model for the liquid and the solid solution phases.

Mots clés: phase diagram; phase equilibria; thermodynamic modelling; optimization; binary system; Bi; Ge; Bi-Ge

Domaines: Chimie inorganique; Matériaux; Matériaux

Pierre-Yves Chevalier. Thermodynamic evaluation of the Bi-Ge system. Thermochimica Acta, 1988, 132, pp.111-116. ⟨10.1016/0040-6031(88)87100-4⟩. ⟨hal-00800275⟩