Characteristics of fine size Fe-Ni alloy powders directly prepared by spray pyrolysis

被引：10

作者：

Jang, H. C. ^{[1
]}

Ju, S. H. ^{[1
]}

Kang, Y. C. ^{[1
]}

机构：

[1] Konkuk Univ, Dept Chem Engn, Seoul 143701, South Korea

来源：

METALS AND MATERIALS INTERNATIONAL | 2010年 / 16卷 / 04期

关键词：

alloys; magnetic materials; chemical synthesis; magnetic properties; HYDROGEN REDUCTION; PARTICLES;

D O I：

10.1007/s12540-010-0819-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Fe-Ni alloy powders with composition of Fe0.25Ni0.75 were directly prepared by spray pyrolysis. The powders prepared at temperatures of 1200 and 1400 A degrees C had peaks of pure Fe-Ni-3 alloy phase. The alloy powders with a spherical shape and dense structure were prepared at a temperature of 1400 A degrees C by melting the powders. The composition ratio of Fe and Ni components in the alloy powders prepared at a temperature of 1400 A degrees C coincided well with that of the spray solution. The mean sizes of the alloy powders changed from 0.20 to 0.74 mu m when the concentrations of the spray solution changed from 0.02 to 1 M. The alloy powders prepared from the spray solution with a concentration of 0.5M had a maximum saturation magnetization and minimum coercivity values as 96.95 emu g(-1) and 34.67 Oe, respectively.

引用

页码：643 / 647

页数：5

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