MHz mechanism of permeability in Fe-Si-Al soft magnetic composites

被引：0
|
作者：
Feng, Hao [1 ]
Jin, Xiaowei [1 ]
Li, Tong [1 ]
Cui, Hongxin [1 ]
Meng, Chao [1 ]
Liu, Zhaochen [1 ]
Xue, Desheng [1 ,2 ]
机构：
[1] Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China
[2] Lanzhou Univ, Key Lab Magnetism & Magnet Mat, Minist Educ, Lanzhou 730000, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2025年 / 1014卷
关键词：
Permeability; Cut-off frequency; Loss; Eddy current; MHz; Soft magnetic composites; POWDER CORES; FIELD; EVOLUTION; LOSSES;
D O I：
10.1016/j.jallcom.2025.178742
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
MHz mechanism of permeability in soft magnetic composites (SMCs) based on epoxy-coated spherical Fe-Si-Al particles is studied. It is found the permeability at 1 MHz decreases from 23 (+0.69) to 10 (+0.3) and the cut-off frequency of permeability increases from 126 (+3.78) MHz to over 1 GHz with decreasing the volume fraction of particles in the SMCs from 90 % to 60 %, respectively. Combining with the results of ferromagnetic resonance, coherent rotation of domain modulated by eddy current is the dominated MHz mechanism of permeability. This is corresponding to both increase of cut-off frequency (from 31 (+0.9) MHz to 367 (+11) MHz) and decrease of loss (from 6776 (+379) kW m-3 to 1003 (+56) kW m-3 at 3 MHz) of SMCs with decreasing the average particle sizes (from 96.0 mu m to 9.3 mu m). This study deepens the understanding of the permeability of SMCs in the MHz band, and provides a reference for the design of high frequency power electronics.
引用
收藏
页数：6
相关论文
共 50 条
  • [11] Effiect of a magnetic field on ultrasound damping in a magnetically soft Fe-Si-Al alloy
    Ashmarin, GM
    Naimi, EK
    Kaputkin, DE
    PHYSICS OF METALS AND METALLOGRAPHY, 2004, 97 (03): : 253 - 258
  • [12] Design and fabrication of Fe-Si-Al soft magnetic composites by controlling orientation of particles in a magnetic field: anisotropy of structures, electrical and magnetic properties
    Peng, Xiaoling
    Zhang, Ao
    Li, Jing
    Yu, Shiyan
    Chang, Jiasong
    Ge, Minghui
    Yang, Yanting
    Xu, Jingcai
    Hong, Bo
    Jin, Dingfeng
    Jin, Hongxiao
    Wang, Xinqing
    Ge, Hongliang
    Fang, Jianfei
    JOURNAL OF MATERIALS SCIENCE, 2019, 54 (11) : 8719 - 8726
  • [13] Evolution of insulating layers during Heat-Treatment and their effects on magnetic behavior of Fe-Si-Al based soft magnetic composites
    Wang, Rui
    Liao, Xiangwei
    Kang, Lei
    Kong, Hui
    Wu, Zhaoyang
    Wang, Haichuan
    CERAMICS INTERNATIONAL, 2023, 49 (11) : 17876 - 17884
  • [14] Effect of Compaction Parameters on Magnetic and Mechanical Properties of Fe-Si-Al Soft Magnetic Composite Cores
    Li, Q. D.
    You, J. H.
    Lian, F. Z.
    Chen, Y. L.
    PROCEEDINGS OF 2ND INTERNATIONAL SYMPOSIUM ON PHYSICS AND HIGH-TECH INDUSTRY, 4TH INTERNATIONAL SYMPOSIUM ON MAGNETIC INDUSTRY, 1ST SHENYANG FORUM FOR DEVELOPMENT AND COOPERATION OF HIGH-TECH INDUSTRY IN NORTHEAST ASIA, 2009, : 140 - +
  • [15] Investigation of Fe-Si-Al Magnetic Powder Core
    Lian, Fa-zeng
    Li, Qing-da
    Chen, Yu-lan
    You, Jun-hua
    Tang, Jian
    Yu, Min
    Li, Xing-guo
    PROCEEDINGS OF THE 7TH NATIONAL CONFERENCE ON CHINESE FUNCTIONAL MATERIALS AND APPLICATIONS (2010), VOLS 1-3, 2010, : 1171 - +
  • [16] Loss-Separation Study on Silica-insulated Gas-atomized Fe-Si-Al Soft Magnetic Composites
    Xu, T. T.
    Zhang, B. W.
    Shi, Z.
    Guan, W. W.
    Wan, K.
    Shi, X. Y.
    Liu, W.
    Su, H. L.
    Zou, Z. Q.
    Du, Y. W.
    JOURNAL OF MAGNETICS, 2020, 25 (02) : 223 - 228
  • [17] Microwave Permeability and Mossbauer Spectra of Flaky Fe-Si-Al Particles
    Han, Mangui
    Liang, Difei
    Rozanov, Konstantin N.
    Deng, Longjiang
    IEEE TRANSACTIONS ON MAGNETICS, 2013, 49 (03) : 982 - 985
  • [18] SUSTAINABLE AND STRATEGIC SOFT-MAGNETIC Fe-Si-Al ALLOYS PRODUCED BY SECONDARY METALLURGY
    Petrovic, Darja Steiner
    MATERIALI IN TEHNOLOGIJE, 2023, 57 (06): : 681 - 686
  • [19] Machine learning assisted optimization of soft magnetic properties in ternary Fe-Si-Al alloys
    Milyutin, V. A.
    Bures, R.
    Faberova, M.
    Bircakova, Z.
    Molcanova, Z.
    Kunca, B.
    Stashkova, L. A.
    Kollar, P.
    Fuzer, J.
    JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2024, 29 : 5060 - 5073
  • [20] Over 100 MHz cut-off frequency mechanism of Fe-Si soft magnetic composites
    Jin, Xiaowei
    Li, Tong
    Jia, Zhenlin
    Shi, Huigang
    Xue, Desheng
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2022, 556
12345