High-performance characteristics of bonded magnets produced using Sm2Fe17Nx powder stabilized by photoinduced zinc metal coating

被引：18

作者：

Izumi, H ^{[1
]}

Machida, K ^{[1
]}

Shiomi, A ^{[1
]}

Iguchi, M ^{[1
]}

Adachi, G ^{[1
]}

机构：

[1] OSAKA UNIV,FAC ENGN,DEPT APPL CHEM,SUITA,OSAKA 565,JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1996年 / 35卷 / 7B期

关键词：

hard magnetic material; rare earth intermetallic compounds; zinc coating; photodecomposition; bonded magnet;

D O I：

10.1143/JJAP.35.L894

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The surface of Sm2Fe17Nx fine powder was stabilized by coating with zinc metal produced by the photodecomposition of diethylzinc (Zn(C2H5)(2)). The remanence (B-Gamma) and coercivity (H-cj) values of the resulting Zn/Sm2Fe17Nx powder mere changed little by zinc coating, and remained at high levels even after heat treatment at 423 K, since the oxidation-resistance was improved by the zinc coating. Epoxy resin bonded magnets prepared using the Zn/Sm2Fe17Nx powder had a maximum energy product (BHmax) value of 176 kJ . m(-3); which did not change greatly after exposure to air. The irreversible flux loss of the bonded Zn/Sm2Fe17Nx magnet was smaller than that of the uncoated Sm2Fe17Nx magnet.

引用

页码：L894 / L896

页数：3

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