PHASE-DIAGRAM OF HGTE-ZNTE PSEUDOBINARY AND DENSITY, HEAT-CAPACITY, AND ENTHALPY OF MIXING OF HG1-XZNXTE PSEUDOBINARY MELTS

In this article, the solidus temperatures of the Hg1-xZnxTe pseudobina ry phase diagram for several compositions in the low x region were mea sured by differential thermal analysis and the HgTe-ZnTe pseudobinary phase diagram was constructed. The densities of two HgZnTe melts, x=0. 10 and 0.16, were determined by an in situ pycnometric technique in a transparent furnace over, respectively, 110 and 50 degrees C ranges of temperature. The thermodynamic properties of the melts, such as the h eat capacity and enthalpy of mixing, were calculated for temperatures between the liquidus and 1500 degrees C by assuming an associated solu tion model for the liquid phase.