PHASE-EQUILIBRIA IN THE CO-NI-F SYSTEM AND ACTIVITIES IN (COXNI1-X)F2 SOLID-SOLUTIONS AT 1373-K

被引：0
|
作者：
SRIKANTH, S [1 ]
JACOB, KT [1 ]
IYENGAR, GNK [1 ]
机构：
[1] INDIAN INST SCI,DEPT MET,BANGALORE 560012,KARNATAKA,INDIA
来源：
HIGH TEMPERATURE SCIENCE | 1990年 / 30卷 / 01期
关键词：
D O I：
暂无
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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 activity-composition 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 DELTA-G(E) = 3080 X(NiF2)X(CoF2) J/mol
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页码：11 / 18
页数：8
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