Influence of a small addition of Nd on structure and magnetic properties of nanocrystalline Fe-B alloys

被引：2

作者：

Hua, Zhenghe ^{[1
]}

Han, Zhida ^{[1
]}

Wang, Dunhui ^{[1
]}

Gu, Benxi ^{[1
]}

Du, Youwei ^{[1
]}

机构：

[1] Nanjing Univ, Dept Phys, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2007年 / 312卷 / 01期

关键词：

nanocrystalline; coercivity; remanence; maximum energy product; exchange coupling;

D O I：

10.1016/j.jmmm.2006.09.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The influence of the addition of a few atomic percent of Nd on the structure and magnetic properties of Fe-B alloys was investigated. It is found that nanocrystalline Fe-B alloys with a small amount of Nd consist of body-centered-tetragonal Fe3B and alpha-Fe phases. A small addition of Nd causes a dramatic change of magnetic properties from soft magnetic to hard magnetic. With increasing Nd content the coercivity increases from 0.2 to 2.3 kOe. High remanence and maximum energy product have been obtained in (Fe,Nd)(3)B/alpha-Fe magnets and is explained by exchange coupling at interface separating nanocrystalline hard magnetic phase (Fe,Nd)(3)B and soft magnetic,phase alpha-Fe. (C) 2006 Elsevier B.V. All rights reserved.

引用

页码：48 / 52

页数：5

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