Glass-coated Co-rich amorphous microwires with enhanced permeability

被引：24
|
作者：
García-Prieto, MJ
Pina, E
Zhukov, A
Larin, V
Marín, P
Vázquez, M
Hernando, A
机构：
[1] UCM, RENFE, Inst Magnetismo Aplicado, Madrid 28230, Spain
[2] CSIC, Inst Ciencia Mat, Madrid 28230, Spain
[3] AmoTec, Kishinev, Moldova
来源：
SENSORS AND ACTUATORS A-PHYSICAL | 2000年 / 81卷 / 1-3期
关键词：
glass-coated amorphous microwires; magneloelastic anisotropy; induced magnetic anisotropy; soft magnetic properties;
D O I：
10.1016/S0924-4247(99)00129-6
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Nearly-zero magnetostriction glass-coated amorphous (Co1-xMnx)(75)Si10B15 (x = 0.06, 0.07 and 0.08 at.%) microwires have been fabricated by Taylor-Ulitovsky technique. Such slight changes in x resulted in rather strong changes in the hysteresis loops. The optimum soft magnetic characteristics in as-cast material are observed for x = 0.07. The effect of heat treatment and chemical etching has been investigated in order to further improve their magnetic properties. Magnetic field annealing at elevated temperature and/or long-time chemical etching results finally in magnetic bistability of microwires. Experimental results are interpreted in terms of the balance between magnetoelastic anisotropy arising from internal stresses, the shape anisotropy and the induced anisotropy by field annealing. Obtained experimental results can be used for tailoring high initial permeability of soft magnetic materials with enhanced initial permeability. (C) 2000 Elsevier Science S.A. All rights reserved.
引用
收藏
页码：227 / 231
页数：5
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