The effects of Ag powder on the magnetic properties and microstructure of Nd-Fe-B type sintered magnets

被引：0

作者：

Zhao, TS

Kim, YB

Jeung, WY

机构：

[1] Shanghai Jiao Tong Univ, Dept Appl Phys, Shanghai 200030, Peoples R China

[2] Korea Inst Sci & Technol, Met Proc Res Ctr, Seoul 130650, South Korea

来源：

JOURNAL OF RARE EARTHS | 2000年 / 18卷 / 03期

关键词：

D O I：

暂无

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

NdFeB sintered magnets with the addition of Ag were prepared by blending hydrogen decrepitated NdFeB powder with Ag powder during ball milling process. It was found that small additions of Ag powder increases the coercivity of the magnets without reducing the remanence. A Microstructure study showed that oxygen content in the Nd-rich phase of the Ag-containing magnet is higher than that of the Ag-free magnet. This change in the composition of the Nd-rich phase increases the volume fraction of the Nd-rich phase in the Ag-containing magnet, which may be responsible for the increase of the coercivity.

引用

页码：10 / 13

页数：4

共 8 条

[1]

Buschow K.H.J., 1997, HDB MAGN MAT, V10, P463

[2] MAGNETIC-PROPERTIES AND THERMAL STABILITIES OF GA SUBSTITUTED ND-FE-CO-B MAGNETS [J].