Collect. Czech. Chem. Commun.
1995, 60, 911-916
https://doi.org/10.1135/cccc19950911
Modelling of Phase Diagram Boundaries at Equilibrium of Two Binary Regular Phases
Jan Vřešťála,b and Ivo Stloukala
a Institute of Theoretical and Physical Chemistry, Masaryk University, 611 37 Brno, Czech Republic
b Institute of Physics of Materials, Academy of Sciences of the Czech Republic, 616 62 Brno, Czech Republic
Abstract
The conditions of occurrence of extremes on the solidus and liquidus curves in a binary isobaric phase diagram are specified. The solid and liquid phases are regarded as regular solutions in equilibrium. Two simplifying assumptions are made: (i) the Gibbs function of melting of the pure components is a linear function of temperature; (ii) the two phases in equilibrium are regular solutions with a temperature-dependent regular solution parameter. The conditions of occurrence of inflexion points on the solidus and/or liquidus curves are obtained by modelling.
