Calculation of activities in some gallium-based systems with a miscibility gap

Autor: Manasijević Dragan, Živković Dragana, Katayama Iwao, Živković Živan D.
Jazyk: angličtina
Rok vydání: 2003
Předmět:
Zdroj: Journal of the Serbian Chemical Society, Vol 68, Iss 8-9, Pp 665-675 (2003)
Druh dokumentu: article
ISSN: 0352-5139
1820-7421
DOI: 10.2298/JSC0309665M
Popis: The calculations of thermodynamic properties in some gallium-based systems with a miscibility gap – Ga–Tl, Ga–Hg and Ga–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 Ga–Tl, Ga–Hg and Ga–Pb system were calculated in the 973–1273 K, 573–873 K and 1000–1100 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.
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