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Enhanced high-frequency electromagnetic properties of Fe-based amorphous soft magnetic composites by adding carbonyl iron powder

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Abstract

In this work, toroid-shaped Fe-based amorphous soft magnetic composites (SMCs) consisting of FeSiBC amorphous powder and carbonyl iron powder (CIP) were prepared by cold pressing. The effects of CIP mass ratio and compaction pressure on the high-frequency electromagnetic properties were systematically investigated. As the CIP content is increased from 0 to 70 wt%, the effective permeability µe of the SMCs is significantly improved due to the increase in density, while the core loss Pcv initially declines and then ascends, exhibiting the lowest value at the addition of 50 wt% CIP. In addition, as compaction pressure increases, the µe further increases, while the Pcv shows little change. Under the combined effect of optimal CIP addition and compaction pressure, the SMCs exhibit high µe of 38.6, high DC-bias performance of 85% (DC magnetic field is 100 Oe), and low Pcv of 691 kW/m3 at 20 mT and 1000 kHz. Compared to the SMCs without CIP, the µe is increased by 123.1%, and the Pcv is decreased by 41.2%. These results indicate that the Fe-based amorphous SMCs with excellent soft magnetic properties have a great advantage in the high-power electronics applications.

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Acknowledgements

The authors would like to acknowledge the Zhejiang Engineering Research Centre for New Magnetoelectric and Optoelectronic Information Materials, Tiantong Holding Co. for providing the facility necessary for conducting the research.

Funding

This work was sponsored by Haining City Human Resources and Social Security Bureau.

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Author notes

  1. Zhi Zhang, Xinran Liu and Yuhang Jiang have contributed equally to this work.

Authors and Affiliations

  1. Zhejiang Tiantong Electronic Information Materials Research Institute Co., Ltd, Haining, 314400, Zhejiang, China

    Zhi Zhang, Xinran Liu, Yuhang Jiang, Xueyan Jing & Ruibiao Zhang

  2. MIIT Key Laboratory of Advanced Metallic and Intermetallic Materials Technology, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China

    Zhi Zhang & Feng Xu

  3. TDG Research Institute for Electronic Information Materials, Haining, 314400, Zhejiang, China

    Yuhang Jiang, Bingbing Xing, Weijian Li & Pengxiang Ge

Authors
  1. Zhi Zhang
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Contributions

Zhi Zhang: Conceptualization, prepared samples, investigation, prepared original draft. Xinran Liu: Prepared samples, analyzed data. Yuhang Jiang: Prepared samples, performed experiment, reviewed and edited the draft. Bingbing Xing: Provided the equipment for magnetic property test. Weijian Li: Compacted samples, tested the densities of samples. Xueyan Jing: Performed VSM measurement, morphology characterization. Pengxiang Ge: Performed dynamic magnetic characterization. Ruibiao Zhang: Resources, provided the idea, reviewed and edited the draft. Feng Xu: Supervised experiment, provided the idea, reviewed and edited the draft.

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Correspondence to Zhi Zhang, Ruibiao Zhang or Feng Xu.

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Zhang, Z., Liu, X., Jiang, Y. et al. Enhanced high-frequency electromagnetic properties of Fe-based amorphous soft magnetic composites by adding carbonyl iron powder. J Mater Sci: Mater Electron 35, 411 (2024). https://doi.org/10.1007/s10854-024-12183-6

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