Influence of grain alignment degree on the magnetic properties for single-phase nanocrystalline Pr2Fe14B magnets

被引：8
作者：
He, SL
Zhang, HW [1 ]
Rong, CB
Chen, RJ
Sun, JR
Shen, BG
机构：
[1] Capital Normal Univ, Dept Phys, Beijing 100037, Peoples R China
[2] Chinese Acad Sci, Inst Phys, State Key Lab Magnet, Beijing 100080, Peoples R China
来源：
ACTA PHYSICA SINICA | 2005年 / 54卷 / 07期
关键词：
nanocrystalline magnets; coercivity; remanence;
D O I：
10.7498/aps.54.3408
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The single-phase nanocrystalline Pr2Fe14B magnets composed of cubic-shaped and irregular-shaped grains is built. The magnetic hysteresis loops are simulated by micromagnetism finite element method. The remanence, coercivity and maximum energy product decrease with deteriorated grain alignment. Attributed to strong intergrain exchange coupling (IGEC), the variation of magnetic properties with alignment degree is significantly affected by the average grain size in nanocrystalline magnets. The investigation shows the increase of coercivity with improved grain alignment in nanocrystalline magnets, which is completely different from the phenomena in sintered magnets.
引用
收藏
页码：3408 / 3413
页数：6
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