Influence of structure on coercivity in nanocrystalline (Fe1-xCox)86Hf7B6Cu1 alloys

被引：30
|
作者：
Liang, XB
Kulik, T
Ferenc, J
Kowalczyk, M
Vlasák, G
Sun, WS
Xu, BS
机构：
[1] Warsaw Univ Technol, Fac Mat Sci & Engn, PL-02507 Warsaw, Poland
[2] Natl Key Lab Remfg, Beijing 100072, Peoples R China
[3] Slovak Acad Sci, Inst Phys, Bratislava 84228, Slovakia
[4] Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
来源：
PHYSICA B-CONDENSED MATTER | 2005年 / 370卷 / 1-4期
基金：
中国国家自然科学基金;
关键词：
nanocrystalline materials; coercivity; grain size; saturation magnetostriction constant; magnetocrystalline anisotropy;
D O I：
10.1016/j.physb.2005.09.005
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The relationship between coercivity and structure in nanocrystalline (Fe1-xCox)(86)Hf7B6Cu1 (x = 0-1) alloys was surveyed. It was found that the increase of Co content in the alloys studied was accompanied by the increase of coercivity. However, we suggest that the factors influencing the coercivity change with the concentration of cobalt in these nanocrystalline alloys. In the iron-rich alloys, the average grain size and magnetostriction play predominant roles in the coercivity. On the other hand, in the case of cobalt-rich alloys, the coercivity mostly originates from the FCC-Co phase with large magnetocrystalline anisotropy and the weak exchange coupling between BCC-Fe(Co) and FCC-Co(Fe). (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：151 / 157
页数：7
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