Structure and magnetic properties of mechanically milled Nd2xFe100-3xBx (x=2-6)

被引：27

作者：

Miao, WF

Ding, J

McCormick, PG

Street, R

机构：

[1] Res. Ctr. Adv. Mineral Mat. Proc., University of Western Australia, Nedlands

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1996年 / 240卷 / 1-2期

关键词：

Nd-Fe-B; milling; heat treatment; permanent magnets; remanence enhancement; nanocrystalline materials;

D O I：

10.1016/0925-8388(96)02199-8

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：

The effects of composition and heat treatment on the structure and magnetic properties of mechanically milled Nd2xFe100-3xBx alloys (x = 2-6) have been studied. High remanences have been obtained in isotropic samples consisting of a nanocrystalline mixture of Nd2Fe14B and alpha-Fe. For optimally heat treated samples, an increase in the volume fraction of alpha-Fe from 14% to 73%, increased the reduced remanence (M(r)/M(s)) from 0.56 to 0.64. The corresponding coercivities decreased from about 8 kOe to only 1.6 kOe. The magnetic behaviour of these Nd2Fe14B-alpha-Fe alloys is associated with exchange coupling between the hard and soft magnetic phases.

引用

页码：200 / 205

页数：6

共 27 条

[1] DE-MIXING OF ND2FE14B DURING MECHANICAL MILLING [J].