Spinel Phase Relations in the Fe3O4–CuFe2O4 System

被引：0
|
作者：
A. E. Katkov
A. A. Lykasov
机构：
[1] South Ural State University,
来源：
Inorganic Materials | 2003年 / 39卷
关键词：
Inorganic Chemistry; Solid Solution; Fe3O4; Phase Equilibrium; Hematite;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Phase equilibria involving spinel solid solutions, delafossite, and hematite in the Fe–Cu–O system are studied by emf measurements in solid-electrolyte galvanic cells. The results demonstrate that, above 1250 K, Fe3O4 and CuFe2O4 form a continuous series of solid solutions. At lower temperatures, the solid solution disproportionates with the formation of delafossite and Fe2O3, and two spinel solid solutions appear: one based on Fe3O4 and the other based on Cu2FeO4. The compositions of the spinel phases in equilibrium with delafossite and Fe2O3 are determined in the range 1100–1250 K.
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页码：171 / 174
页数：3
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