Abstract
The excess enthalpies of liquid alloys in the ternary Ga–Pb–Te system were determined at 1173 K in a heat-flow calorimeter for the sections Ga y Pb 1− y Te with y=0.2, 0.4. 0.5, 0.6 and 0.8 and for the section Ga 0.5Pb 0.5-Te at 1073 K. The enthalpy surface in the ternary system is characterized by a line of minima from the composition Ga 2Te 3 to the composition PbTe in the limiting binaries. The excess enthalpies in the binary systems were fitted with the association or regular solution model using the program of H.-L. Lukas. For an analytical description of the ternary system, the association model was used with additional ternary interaction parameters.
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