HIGH COERCIVITY SINTERED PR-FE-B-CU MAGNETS USING THE HYDROGEN DECREPITATION PROCESS

被引：23

作者：

FARIA, RN

ABELL, JS

HARRIS, IR

机构：

[1] School of Metallurgy and Materials, University of Birmingham, Edgbaston

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1991年 / 177卷 / 02期

关键词：

D O I：

10.1016/0925-8388(91)90084-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Sintered permanent magnets based on the compositions Pr20.5Fe73.8B3.7Cu2 and Pr16.9Fe79.1B4 have been prepared using the hydrogen decrepitation process. For particular processing conditions, annealing the magnets at 1000-degrees-C resulted in an increase in (i)H(c) from 11 to around 20 kOe for both alloys. Sintered and furnace-cooled magnets exhibited higher intrinsic coercivities than the quenched magnets. The possibility of changing the easy direction of magnetization from the tetragonal c-axis to easy basal plane during hydrogen absorption has also been investigated as a means of producing radially anisotropic permanent magnets using the isostatic pressing method.

引用

页码：311 / 320

页数：10

共 14 条

[1] MODIFICATION OF THE MICROSTRUCTURE OF ND15FE77B8 ALLOY BY CONTROLLED SOLIDIFICATION [J].