|
Abstract : |
The calculations of thermodynamic properties in some gallium-based systems with a miscibility gap آ– Gaآ–Tl, Gaآ–Hg and Gaآ–Pb are presented in this paper. The determination of the gallium activities in the mentioned liquid alloys was based on their known phase diagrams using the Zhang-Chou method for calculating activities from phase diagrams involving two liquid or solid coexisting phases. The activities of gallium in Gaآ–Tl, Gaآ–Hg and Gaآ–Pb system were calculated in the 973آ–1273 K, 573آ–873 K and 1000آ–1100 K, temperature ranges, respectively. The activities of the other component in all the investigated systems were obtained by the Gibbs-Duhem equation. The results of the calculations are compared with literature data., |
