Analysis of Magnetic Losses and Complex Permeability in Novel Soft Magnetic Composite With Ferrite Nanofibers

被引：29
作者：
Dakova, L. [1 ]
Fuzer, J. [1 ]
Dobak, S. [1 ]
Kollar, P. [1 ]
Osadchuk, Y. [1 ]
Streckova, M. [2 ]
Faberova, M. [2 ]
Bures, R. [2 ]
Kurek, P. [2 ]
Vojtko, M. [2 ]
机构：
[1] Pavol Jozef Safarik Univ, Inst Phys, Fac Sci, Kosice 04154, Slovakia
[2] Slovak Acad Sci, Inst Mat Res, Kosice 04001, Slovakia
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2018年 / 54卷 / 12期
关键词：
Magnetic losses; magnetic properties; powder metallurgy; soft magnetic materials; POWER LOSS SEPARATION; FE;
D O I：
10.1109/TMAG.2018.2866814
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：
This paper investigated the magnetic properties of novel soft magnetic composite (SMC) with ferrite nanofibers. Material consists of FeSi powder covered by resin and different amounts of Ni0.3Zn0.7Fe2O4 ferrite nanofibers. We prepared SMC with very high specific electrical resistivity. FeSi/resin (0.49 wt% ferrite) sample exhibits the highest electrical resistivity (6.05 Omega.m) due to low interparticle contacts. The image analysis of SEM pictures was used for the evaluation of effective area, in which local eddy currents are flowing. The FeSi/resin (0.49 wt% ferrite) sample displays the lowest total losses in the measured frequency range due to the highest specific electrical resistivity and appropriately covered FeSi particles. Loss separation and the analysis of movable magnetic objects were performed for all studied materials.
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页数：6
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