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FeNi/Glass Soft Magnetic Composites with High Magnetic Properties

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Abstract

FeNi/glass composites with 0 wt%,1 wt%, and 2 wt% glass content are produced, and their soft magnetic properties are systematically studied. The scanning electron microscope (SEM) results indicate that the FeNi particles are surrounded by glass powder. With the addition of glass powder, the saturation magnetization of the FeNi/glass composites decreases from 170 to 158 emu/g, and the effective permeability decreases from 56.1 to 39.1. With the increase of glass content, the imaginary part μ″ is reduced, indicating that the eddy current loss or excess loss is reduced at high frequency. The magnetic loss measurement results show that the addition of glass powder greatly reduces the eddy current loss. Furthermore, the FeNi/glass composite core with 2 wt% glass content has moderate permeability, higher quality factor Q, and better DC bias characteristics than other cores. The results show that the ideal glass powder content can improve the magnetic properties of FeNi composite materials, and glass powder can be used as an insulator in soft magnetic composites (SCMs).

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Funding

This work was supported by the National Natural Science Foundation of China (No. 51872004), by the Education Department of Anhui Province (Nos. KJ2019ZD03, KJ2013B293, KJ2018A0039) and by the Key Research and Development Plan of Anhui Province(No. 201904a05020038).

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Authors and Affiliations

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

    Shoujin Zhu, Zihuang Wang, Xucai Kan, Shuangjiu Feng & Xiansong Liu

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  1. Shoujin Zhu
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  2. Zihuang Wang
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  3. Xucai Kan
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  4. Shuangjiu Feng
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  5. Xiansong Liu
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Correspondence to Shuangjiu Feng or Xiansong Liu.

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Zhu, S., Wang, Z., Kan, X. et al. FeNi/Glass Soft Magnetic Composites with High Magnetic Properties. J Supercond Nov Magn 35, 1165–1172 (2022). https://doi.org/10.1007/s10948-022-06166-z

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  • DOI: https://doi.org/10.1007/s10948-022-06166-z

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