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Structural and Magnetic Characterization of Fe-Based Amorphous Alloy Prepared by Microwave Annealing Treatment

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Abstract

Fe-based nanocrystalline soft-magnetic alloy presents the advantages of high permeability and low hysteresis loss and is widely used in the power electronics industry due to its excellent soft-magnetic properties. The effects of microwave annealing on the crystallization process and properties of Fe80.5Si10B8Cu1Nb0.5 amorphous alloy have been studied by differential scanning calorimetry, x-ray diffraction analysis, and vibrating-sample magnetometry. The crystallization process of Fe80.5Si10B8Cu1Nb0.5 amorphous alloy consists of two stages: α-Fe(Si) phase and Fe2B phase. The microwave annealing process enables a significant improvement in the soft-magnetic properties of Fe-based amorphous alloy, with the optimum magnetic properties being obtained for the alloys annealed at 1000 W for 10 min.

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Acknowledgments

This work was supported by Project of the State Key Laboratory for Advanced Metals and Materials of P.R. China (2018-Z05) and the Shanghai Science and Technology Committee of P.R. China (16090503600, 19YF1446600).

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Correspondence to Min Liu or Zhanyong Wang.

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Ding, S., Liu, M., Wang, Z. et al. Structural and Magnetic Characterization of Fe-Based Amorphous Alloy Prepared by Microwave Annealing Treatment. Journal of Elec Materi (2020) doi:10.1007/s11664-019-07823-1

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Keywords

  • Fe-based amorphous alloy
  • soft-magnetic properties
  • microwave annealing