Electron holography of Nd-Fe-B nanocomposite magnets

被引：48

作者：

Shindo, D

Park, YG

Murakami, Y

Gao, Y

Kanekiyo, H

Hirosawa, S

机构：

[1] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan

[2] Sumitomo Special Met Co Ltd, Res & Dev, Osaka 6180013, Japan

来源：

SCRIPTA MATERIALIA | 2003年 / 48卷 / 07期

关键词：

magnetic domains; exchange coupling; electron microscopy; permanent magnets;

D O I：

10.1016/S1359-6462(02)00601-2

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Magnetization distribution in Nd-Fe-B nanocomposite magnets was investigated by electron holography, using a new pole piece apparatus dedicated to observations of nanocrystalline ferromagnetic materials. The exchange coupling between the magnetically soft and hard grains of 20-30 nm was experimentally verified by this microscopic study with improved resolution. (C) 2003 Published by Elsevier Science Ltd. on behalf of Acta Materialia Inc.

引用

页码：851 / 856

页数：6