Effects of the addition of permalloy powder on the high-frequency magnetic properties of Fe-based amorphous powder cores

被引：8
|
作者：
Kim, Yoon B. [1 ]
Kim, K. Y. [1 ]
机构：
[1] Korea Inst Sci & Technol, Adv Met Res Ctr, Seoul 136791, South Korea
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2006年 / 42卷 / 10期
关键词：
cold pressing; core loss; FeSiB amorphous powder core; gas atomization; high-frequency characteristics;
D O I：
10.1109/TMAG.2006.879884
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：
FeSiB amorphous powder was produced by gas atomization, and subsequently toroidal-shaped FeSiB amorphous powder cores were prepared by cold pressing, using permalloy powder as an additive. The characteristics of gas-atomized FeSiB amorphous powder and high-frequency magnetic properties of the cores were investigated. FeSiB amorphous powder, exhibiting good soft magnetic properties with a saturation magnetization of 125 emu/g and a coercivity of 0.4 Oe, was successfully produced by gas atomization in the particle size range below 75 pm. The addition of permalloy powder was effective for compaction of FeSiB amorphous powder cores by cold pressing. Permalloy powder increases the effective permeability of the cores but deteriorates the high-frequency dependence of the permeability at high content.
引用
收藏
页码：2802 / 2804
页数：3
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