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National Institute for Research in Inorganic Material
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National Institute for Research in Inorganic Material
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Application filed by National Institute for Research in Inorganic MaterialfiledCriticalNational Institute for Research in Inorganic Material
Priority to JP56065047ApriorityCriticalpatent/JPS5943422B2/en
Publication of JPS57179033ApublicationCriticalpatent/JPS57179033A/en
Publication of JPS5943422B2publicationCriticalpatent/JPS5943422B2/en
PURPOSE: To obtain a compound having a hexagonal system laminar structure represented by ErFeMgO4 by mixing Er, Fe and Mg or oxides thereof in a specified atomic ratio and heating the mixture at a proper temp. in a specified atmosphere.
CONSTITUTION: Er, Er2O3 or a compound decomposable into Fr2O3 by heating is mixed with Fe, Fe2O3 or a compound decomposable into Fe2O3 by heating and Mg, MgO or a compound forming MgO by heating in the form of powder so as to make the atomic ratio among Er, Fe and Mg 1:1:1. This mixture is heated at ≥1,200°C in the air, an oxidizing atmosphere or a reducing atmosphere to such a degree that Fe and Mg are not reduced from the tervalent ionic state and the bivalent ionic state, respectively, and after finishing the reaction, the reaction product is rapidly cooled. By this method a brown ErFeMgO4 compound having a hexagonal system laminar structure is obtd. This compound is useful as a magnetic material, a semiconductor material and a catalyst.
COPYRIGHT: (C)1982,JPO&Japio
JP56065047A1981-04-271981-04-27
Compound having hexagonal layered structure represented by ErFeMgO↓4 and method for producing the same
ExpiredJPS5943422B2
(en)