SYNTHESIS AND MAGNETIC-PROPERTIES OF FE5C2 BY REACTION OF IRON-OXIDE AND CARBON-MONOXIDE

被引：45

作者：

HIRANO, SI

TAJIMA, S

机构：

[1] Department of Applied Chemistry, Faculty of Engineering, Nagoya University, Nagoya, 464, Furoho, Chikusa-ku

来源：

JOURNAL OF MATERIALS SCIENCE | 1990年 / 25卷 / 10期

关键词：

D O I：

10.1007/BF00581108

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The formation behaviour and magnetic properties of Fe5C2 were investigated. Iron oxides, as starting material, were carburetted with carbon monoxide gas by heat treatment. Fe5C2 was formed as a single phase in the reaction temperature range 350 to 375° C. The amount of carbon monoxide gas was controlled by mixing with nitrogen gas to prevent free carbon deposition by the disproportionation of carbon monoxide. Synthesized Fe5C2 particles were identified as a single phase by XRD and the weight change measurement of reactants. The saturation magnetization of Fe5C2 was about 100e.m.u.g-1, regardless of the reaction temperature. The coercive force decreased from 800 to 400 Oe with increasing reaction temperature. © 1990 Chapman and Hall Ltd.

引用

页码：4457 / 4461

页数：5