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Structures, Spectra, Morphologies, and Magnetic Properties of Pr3+-Substituted Ba Hexaferrites

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Abstract

Pr-doped M-type barium ferrite with a composition of Ba1−xPrxFe12O19 (0.00 < x < 0.25) was prepared via solid-state sintering combined with high-energy ball milling. The structures, spectra, morphologies, and magnetic properties of Pr3+-substituted Ba hexaferrites were analyzed herein. Under high-energy ball milling, the material produces crystal vacancy defects for elemental doping. The X-ray diffraction results showed that the hexagonal crystal structure was affected when the Pr content (x) was > 0.20. The GSAS refinement results show that the synthesized samples were good. The scanning electron microscopy results and Fourier transform infrared (FT-IR) spectra of the tetrahedral and octahedral sites (FT-IR result of the Fe–O bond = 601 and 448 cm−1 peaks, respectively) of the prepared material proved the formation of a hexagonal crystal structure. The magnetic properties of the samples were measured using a vibrating sample magnetometer at room temperature, and the obtained results demonstrated that the coercivity increased with an increase in the doping amount (from 3815.03 at x = 0 to 4600.56 kOe at x = 0.25). At the same time, the saturation magnetization maintained its high value (> 72.568 emu/g), which is beneficial for preparing permanent magnets.

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Funding

The study received funding supported from the National Natural Science Foundation of China (Grant No.51764045),Science and Technology program of Baotou City of China (Grant No:2019Z3004-5),Inner Mongolia Autonomous Region Science and Technology plan Project (Grant No.2021GG0438) and Inner Mongolia Natural Science Foundation (2020MS05048, 2020BS05029).

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Authors and Affiliations

  1. School of Materials and Metallurgy, Key Laboratory of Integrated Exploitation of Bayan Obo Multi-Metal Resource, Inner Mongolia University of Science and Technology, Baotou, 014010, China

    Pengwei Li, Jie Li, Wenhao Zhang, Yonglun Wang & Kai Yao

  2. School of Mining and Coal, Inner Mongolia University of Science and Technology, Baotou, 014010, China

    Pengwei Li, Wenhao Zhang, Yonglun Wang & Kai Yao

Authors
  1. Pengwei Li
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  2. Jie Li
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  3. Wenhao Zhang
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  4. Yonglun Wang
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  5. Kai Yao
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Contributions

Pengwei Li: conceptualization, methodology, investigation, writing—original draft, writing—review and editing. Jie Li: resources, supervision. Wenhao Zhang: methodology, software. Kai Yao: investigation, validation. Yonglun Wang: methodology, software.

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Correspondence to Pengwei Li or Jie Li.

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Li, P., Li, J., Zhang, W. et al. Structures, Spectra, Morphologies, and Magnetic Properties of Pr3+-Substituted Ba Hexaferrites. J Supercond Nov Magn 35, 2473–2484 (2022). https://doi.org/10.1007/s10948-022-06294-6

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  • DOI: https://doi.org/10.1007/s10948-022-06294-6

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