Thermodynamic analysis and phase equilibria calculations of pb-zn, sn-zn, and pb-sn-zn systems

Thermodynamic properties of liquid and solid phases in the Pb-Zn, Sn-Zn, and Pb-Sn-Zn systems were assessed using a quasi sub-subregular solution model. The model parameters for different phases were obtained by simultaneous optimization with respect to the available thermodynamic and phase equilibrium data. Phase diagrams and thermodynamic data were then calculated and compared with the experimental/assessed data.