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Preparation and Magnetic Properties of La-Substituted Strontium Hexaferrite by Microwave-Assisted Sol-Gel Method

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Abstract

Sr1−x La x Fe12O19 (x = 0, 0.15, 0.25, 0.5) hexaferrites were prepared by microwave-assisted sol-gel method. The thermal decomposition process, structural, and magnetic properties of the products were studied by thermal differential scanning calorimeter (DSC), thermogravimetry (TG), X-ray diffraction (XRD), and vibrating sample magnetometer (VSM). The phase of α-Fe2O3 appeared at x = 0.25 and x = 0.5. The coercivity of La3+-substituted strontium hexaferrites is improved to 5960.2 Oe at x = 0.25.

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Acknowledgments

This work was supported by Project of the Shanghai Education Commission of PR China (14ZZ165) and State Key Laboratory for Advanced Metals and Materials of PR China (2013-Z02).

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Authors and Affiliations

  1. School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai, 201418, China

    Zhanyong Wang, Wenya Yang, Zhipeng Zhou, Minglin Jin & Jiayue Xu

  2. State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing, 100083, China

    Yanli Sui

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  1. Zhanyong Wang
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  2. Wenya Yang
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  3. Zhipeng Zhou
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  4. Minglin Jin
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  5. Jiayue Xu
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Correspondence to Zhanyong Wang.

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Wang, Z., Yang, W., Zhou, Z. et al. Preparation and Magnetic Properties of La-Substituted Strontium Hexaferrite by Microwave-Assisted Sol-Gel Method. J Supercond Nov Magn 29, 981–984 (2016). https://doi.org/10.1007/s10948-016-3392-7

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  • DOI: https://doi.org/10.1007/s10948-016-3392-7

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