Calculations of the Isothermal Sections of the Phase Diagram of the Cd-Sn-Zn Ternary System at High Pressure

According to the phase boundary theory the principle of the chemical potentials of each component in the different phases being equal in an equilibrium system, the horizontal sections and liquids projections of the phase diagram of Cd-Sn-Zn ternary system at constant temperature 500 K and different high pressures are calculated, and presented in figs. In this system, the form of liquids projection at a constant high pressure of 2.0 GPa is similar to that at normal pressure but the liquid regions of the former become smaller. Due to the effect of high pressure, the ternary eutectic temperature is increased by about 60 K.