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Phase equilibria in the Co Ni F system and activities in (CoxNi1 x)F2 solid solutions at 1373 K

Srikanth, S and Iyengar, GNK and Jacob, KT (1990) Phase equilibria in the Co Ni F system and activities in (CoxNi1 x)F2 solid solutions at 1373 K. In: High temperature science, 30 (1). pp. 11-18.

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The tie-lines delineating equilibria between CoF2-NiF2 and Co-Ni solid solutions in the ternary Co-Ni-F system at 1373 K have been determined by electron microprobe and EDAX point count analysis of the equilibrated phases. Activities in the fluoride solid solution have been derived from the knowledge of activitycomposition relation in the metallic solid solution and tie-line data,using a modified form of the Gibbs-Duhem integration. The fluorine potentials corresponding to the tie-line compositions have been calculated.The excess Gibbs' energy of mixing for the fluoride solid solution derived from the present data can be represented by the expression

Item Type: Journal Article
Publication: High temperature science
Publisher: Academic Press
Additional Information: Copyright of this article belongs to Academic Press.
Keywords: Phase equilibrium;Ternary system;Cobalt Nickel Fluorine Alloys;Thermodynamic equilibrium;Solid solution
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 09 Dec 2011 10:16
Last Modified: 09 Dec 2011 10:16
URI: http://eprints.iisc.ac.in/id/eprint/42668

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