Microstructure and magnetic properties in Mn-doped Nd-Fe-B magnets

被引：0
作者：
Guozhi Xie [1 ]
Shilong Yin
Pinghua Lin
Mingxia Shen
Benxi Gu
Mu Lu
Youwei Du
机构：
[1] Hohai Univ, Dept Mat Sci & Engn, Nanjing 210098, Peoples R China
[2] Hohai Univ, Dept Math & Phys, Nanjing 210098, Peoples R China
[3] Nanjing Univ, Dept Phys, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China
来源：
MATERIALS RESEARCH BULLETIN | 2007年 / 42卷 / 01期
关键词：
X-ray diffraction; magnetic properties; microstructure;
D O I：
10.1016/j.materresbull.2006.05.003
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of the addition of antiferromagnetic element Mn on the local structure and the magnetic properties of Nd9Fe85B6 magnets has been studied. It was found that the microstructure and local structure heavily depended on both the Mn addition and the quenched speed. The Mn additions could promote the order degree around Fe atom in as-spun samples. After appropriate annealing, the completely crystallized samples were obtained. It showed that the difference of the local structures around Fe atoms almost disappeared and the hard magnetic properties, especially the coercivity was enhanced. It is presumed that the enhanced hard magnetic properties were attributed to the enhancement of the exchange coupling, which is between the hard phases and the soft phases. (C) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：131 / 136
页数：6
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