EFFECT OF COARSE GRAINS ON MAGNETIC-PROPERTIES OF ND-FE-CO-B-GA DIE-UPSET MAGNETS

被引：13

作者：

NOZAWA, Y

TANIGAWA, S

TOKUNAGA, M

机构：

[1] Magnetic and Electronic Materials Research Laboratory, Hitachi Metals, Ltd., Kumagaya, Saitama 360

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1990年 / 26卷 / 05期

关键词：

D O I：

10.1109/20.104505

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Coarse grains contained in Nd-Fe-Co-Ga-B hot-pressed and die-upset magnets are reviewed. Coarse grains contained in hot-pressed magnets maintain their shapes during die-upsetting and increase deformation resistance. Br, Hk and (BH)max of die-upset magnets decrease with increase in the volume fraction of coarse grains. Equiaxed coarse grains nucleate and grow during melt-spinning. Columnar coarse grains grow during hot-press-ing. Volume fraction of coarse grains before die-upsetting should be minimized to increase (BH)max. © 1990 IEEE

引用

页码：1724 / 1726

页数：3

共 5 条

[1]

BURDEN MH, 1970, J I MET, V98, P249

[2] PROPERTIES OF NDFEB PERMANENT-MAGNETS AS A FUNCTION OF RIBBON QUENCH RATE [J].