Developments in the processing and properties of NdFeb-type permanent magnets

被引：384

作者：

Brown, D ^{[1
]}

Ma, BM ^{[1
]}

Chen, ZM ^{[1
]}

机构：

[1] Magnequench Technol Ctr, Res Triangle Pk, NC 27709 USA

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2002年 / 248卷 / 03期

关键词：

isotropic magnets; anisotropic magnets; magnet fabrication;

D O I：

10.1016/S0304-8853(02)00334-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The composition, microstructure and processing of NdFeB-type permanent magnets are all critical factors for the successful production of high performance magnet components. Three common fabrication routes can be used to categorize these NdFeB-based bulk magnets: sintering, polymer bonding and hot deformation. Generally, the former type of magnet has a high-energy product (30-50 MGOe), full density and a relatively simple shape. Bonded magnets have intermediate energy products (10-18 MGOe), lower density and can be formed into intricate net-shapes. Hot deformed magnets possess full density, intermediate to high-energy products (15-46 MGOe), isotropic or anisotropic properties and have the potential to be formed into net shapes. This article discusses the critical issues of improved magnetic performance, environmental stability, net-shape formability and magnetization behavior for the main categories of NdFeB magnets. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：432 / 440

页数：9

共 25 条

[1]

CAMPBELL P, 2001, COMMUNICATION

[2] New bonded magnet materials [J].