HIGH COERCIVITY IN RAPIDLY QUENCHED RIBBONS OF PR-CO BINARY-ALLOYS

被引：5

作者：

MORIMOTO, K

YAGI, M

TAKESHITA, T

机构：

[1] MITSUBISHI MAT CORP,CENT RES INST,FUJIOKA 375,JAPAN

[2] MIYAGI NATL COLL TECHNOL,NATORI 98112,JAPAN

[3] MITSUBISHI MAT CORP,CENT RES INST,OMIYA 330,JAPAN

来源：

MATERIALS TRANSACTIONS JIM | 1991年 / 32卷 / 06期

关键词：

RAPIDLY QUENCHED RIBBON; PRASEODYMIUM-COBALT BINARY SYSTEM; COERCIVITY; PRCO5; COMPOUND; GRAIN SIZE;

D O I：

10.2320/matertrans1989.32.562

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Rapidly quenched Pr-Co binary ribbons with various Pr contents in the range of 11.1 approximately 18.1 at % were produced by the single roller method and their magnetic properties were investigated. It was found that the ribbons with 17.3 at% Pr exhibit high coercivity value of 1100 kA/m, which is two or three times higher than those of sintered magnets of the Pr-Co system. These alloy ribbons consist only of the PrCo5 grains of 0.3 approximately 0.8-mu-m in diameter. On the contrary, the ribbons with other compositions, which contain the Pr2Co17 or the Pr5Co19 phase as a secondary phase, possess much lower coercivity values. This indicates that these phases serve as nucleation centers for the formation of inverse magnetic domains.

引用

页码：562 / 565

页数：4

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