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Research on the soft magnetic properties of iron–nickel magnetic powder core composite with carbonyl iron powder

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Abstract

In this paper, the composite soft magnetic powder core was prepared using aerosolized iron–nickel powder and carbonyl iron powder. The influence of the composite ratio of aerosolized iron–nickel powder/carbonyl iron powder on the microstructure and soft magnetic properties of the magnetic powder core samples were investigated. The results show that the carbonyl iron powder fills larger pores between iron and nickel particles, which improves the density of the core. Compared with pure aerosolized iron–nickel magnetic powder core samples, the relative permeability of magnetic powder core samples gradually increases. The magnetic powder core with 15-wt% carbonyl iron particles has the optimum comprehensive soft magnetic properties (µr=50.23, Q = 86.6 measured at 200 kHz, Pcv=185.33 kW/m3 measured at 50 mT, 100 kHz). Meanwhile, the DC bias (µH/µH=0) property was superior, which exceeds 82.1% of the effective permeability at H = 100 Oe. In addition, the cost of raw material for preparing the magnetic powder core is reduced at the same time. From an economic perspective, the present work provides new references for magnetic component researchers.

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Funding

This work was supported by the National Key Research and Development Program of China (Grant Nos. 2021YFB3502400, 2022YFB3504800), the Key Research and Development Plan of Anhui Province (Grant Nos. 202003a05020051, 202304a05020036), and the Education Department of Anhui Province (Grant Nos. 2022AH050081, 2022AH051714).

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Authors and Affiliations

  1. Anhui Key Laboratory of Magnetic Functional Materials and Devices, Engineering Technology Research Center of Magnetic Materials of Anhui Province, School of Materials Science and Engineering, Anhui University, Hefei, 230601, China

    S. Y. Deng, K. Zhu, Y. Zhang, Y. Zhu & X. C. Kan

  2. Ningbo Huafeng Package Co., Ltd, Zhejiang, 315480, China

    X. C. Kan

  3. Engineering Research Center of High frequency Soft Magnetic Materials and Ceramic Powder Materials of Anhui Province, Chaohu University, Hefei, 238024, China

    F. Hu

Authors
  1. S. Y. Deng
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  2. K. Zhu
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  3. Y. Zhang
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  4. Y. Zhu
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  5. F. Hu
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  6. X. C. Kan
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Contributions

SD contributed to conceptualization, formal analysis, data curation, writing of the original draft, and visualization. KZ contributed to methodology and validation. YZ contributed to funding acquisition. YZ contributed to visualization. FH contributed to formal analysis, investigation project, administration, and funding acquisition. XK contributed to resources, writing, reviewing, and editing of the manuscript, and supervision.

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Correspondence to F. Hu or X. C. Kan.

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Deng, S.Y., Zhu, K., Zhang, Y. et al. Research on the soft magnetic properties of iron–nickel magnetic powder core composite with carbonyl iron powder. J Mater Sci: Mater Electron 35, 289 (2024). https://doi.org/10.1007/s10854-024-12061-1

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