The Determination of High Pressure Phase Diagrams of the Cd-Sn(0.2)-Zn Ternary Alloy

In order to verify the calculated results of the high pressure phase diagram of the ternary alloy system, several vertical sections of phase diagrams of Cd-Sn-Zn system with a constant composition of xSn=0.2 were determined by the method of differential thermal analysis (DTA) of 0, 0.5, 1.0 and 1.5 GPa. The liquidus determined at ordinary pressure coincides well with Bray's result. The eutectic temperature of the system increased by about 35 K from the ordinary pressure to 1.5 GPa. And the eutectoid composition changed about 0.08 mole fraction towards the zinc-rich side.