华东师范大学学报(自然科学版) ›› 2010, Vol. 2010 ›› Issue (3): 63-67.

• 应用物理 电子学 • 上一篇    下一篇

钴基玻璃包裹丝软磁性能的优化

杨其燕， 张 清， 陈德禄， 赵振杰   

  1. 华东师范大学 物理系，上海 200062
  • 收稿日期:2009-11-06 修回日期:1900-01-01 出版日期:2010-05-25 发布日期:2010-05-25
  • 通讯作者: 赵振杰

Optimization of soft magnetic property for Co-based glass covered microwires

YANG Qi-yan, ZHANG Qing, CHEN De-lu, ZHAO Zhen-jie
   

  1. Department of Physics, East China Normal University, Shanghai 200062, China
  • Received:2009-11-06 Revised:1900-01-01 Online:2010-05-25 Published:2010-05-25
  • Contact: ZHAO Zhen-jie

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摘要： 采用高频感应加热熔融快淬法制备钴基玻璃包裹丝，研究了包裹丝的直径和退火电流密度对于巨磁阻抗效应（Giant Magnetoimpedance, GMI）和磁场灵敏度的影响.结果显示，随着包裹丝直径的增大，GMI和磁场灵敏度先增大后减小，当包裹丝总直径为29 μm时，软磁性能最好.用此直径的包裹丝进行不同电流密度的电流退火处理，发现当退火电流密度为120 A/mm2时，磁场灵敏度最高为602%/Oe(1 Oe=1 000/4π A/m).

关键词: 玻璃包裹丝, 软磁性能, 优化, 玻璃包裹丝, 软磁性能, 优化

Abstract: This paper studied the Giant Magnetoimpedance (GMI) and field sensitivity (ζ) of Cobased microwires with different diameters and under different annealing current densities, which was prepared by the TaylorUlitovsky method. The results showed that with the increase of diameters of the microwires the GMI and ζ both increase first and then decrease. The best soft magnetic property is obtained for the microwires with 29 μm in diameter. The highest field sensitivity (602 %/Oe ) is found under 120 A/mm2 current annealing.

Key words: soft magnetic property, optimization, glass covered microwires, soft magnetic property, optimization

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