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Fabrication and magnetic properties of novel Fe-based amorphous powder and corresponding powder cores

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Abstract

In this study, Fe77P6B10Si4Nb2Cr1 amorphous powder in the particle size range below 75 µm was synthesized using industrial raw materials by water atomization. Then the amorphous magnetic powder cores (AMPCs) were prepared from the mixture of the amorphous alloy powder with different contents of epoxy resin as insulation/bonding materials by cold pressing. After annealed at 673 K for 1 h, the evolution of the high-frequency properties for the FePBSiNbCr AMPCs with the epoxy resin contents was studied. The AMPCs showed excellent magnetic properties, including high effective permeability of 62–82 with a high frequency stability up to 10 MHz, low core loss of 308–500 mW/cm3 at 100 kHz under the maximum magnetic flux density of 0.05 T, and superior DC-bias permeability of 62–72% at a bias field of 100 Oe. The development of Fe-based AMPCs with excellent soft magnetic properties is encouraging for future applications as functional materials.

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Acknowledgements

The work was supported by the National Key Research and Development Program of China (Grant No. 2016YFB0300500); National Natural Science Foundation of China (Grant No. 51601205 and 51671206); Ningbo Municipal Nature Science Foundation (Grant No. 2017A610036); Zhejiang Province Public Technology Research and Industrial Projects (Grant No. 2016C31025) and Ningbo International Cooperation Projects (Grant No. 2015D10022).

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Authors and Affiliations

  1. Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, 315201, Zhejiang, People’s Republic of China

    Min Liu, Keyu Huang, Lei Liu, Tong Li, Yaqiang Dong & Xin-Min Wang

  2. Ningbo yunsheng co. ltd, Ningbo, 315201, Zhejiang, People’s Republic of China

    Pingping Cai

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  1. Min Liu
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  2. Keyu Huang
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  3. Lei Liu
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  6. Yaqiang Dong
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  7. Xin-Min Wang
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Correspondence to Yaqiang Dong.

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Liu, M., Huang, K., Liu, L. et al. Fabrication and magnetic properties of novel Fe-based amorphous powder and corresponding powder cores. J Mater Sci: Mater Electron 29, 6092–6097 (2018). https://doi.org/10.1007/s10854-018-8584-4

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  • DOI: https://doi.org/10.1007/s10854-018-8584-4

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