Thermodynamic Calculation and 3D Modeling of the Liquidus and Immiscibility Surfaces of the Ge–Cu–Tl System

This work devoted to the calculation and 3D visualization of the crystallization surface of Ge and immiscibility surface of alloys based on thallium and copper in the Cu-Tl-Ge system. For determining and modeling these properties were used thermodynamic equations which are solved based on thermodynamic information obtained from the phase diagram of the binary boundary systems by using a limited number of experimental data for the ternary system. The calculation and visualization of immiscibility in the concentration range xGe=0÷0.55 and crystallization surfaces of Ge in the concentration range xGe=0.55÷1.0 mole fraction for section yPb=xPb/(xPb+хTl)=0÷1 were performed by the program OriginLab2015 and grafikus.ru/plot3d.