Evolution of magnetic phases upon annealing in glass-coated Fe-Ni-Cu microwires

被引:0
|
作者
Wang, KY [1 ]
Frommen, C
Schilling, PJ
Moelders, N
Tang, J
机构
[1] Univ New Orleans, Adv Mat Res Inst, New Orleans, LA 70148 USA
[2] Univ New Orleans, Dept Mech Engn, New Orleans, LA 70148 USA
[3] Louisiana State Univ, J Bennett Johnson Sr Ctr Adv Microstruct & Device, Baton Rouge, LA 70803 USA
[4] Univ New Orleans, Dept Phys, New Orleans, LA 70148 USA
基金
美国国家科学基金会;
关键词
microwires; annealing; glass coating; magnetic phases;
D O I
10.1016/S0304-8853(00)01073-8
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The effects of annealing on the magnetic properties of glass-coated Fe-Ni-Cu microwires have been studied. The FCC Ni-Fe particle size increases with the annealing temperature resulting in higher room temperature coercivity. When the annealing temperature is increased to 500 degreesC, a wasp-waisted hysteresis loop is observed which arises from the locking-in of the domain walls by the directional order of atoms due to diffusion under the influence of the local magnetic field. A magnetically hard glass-coated microwire with coercivity of 600 Oe is obtained after annealing at 700 degreesC for 1 h. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:1970 / 1972
页数:3
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