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Modeling of Magnetic Properties of Rare-Earth Hard Magnets

Author

Listed:
  • Anna Przybył

    (Chair of Physics, Częstochowa University of Technology, 42-201 Częstochowa, Poland)

  • Piotr Gębara

    (Chair of Physics, Częstochowa University of Technology, 42-201 Częstochowa, Poland)

  • Roman Gozdur

    (Department of Semiconductors and Optoelectronics Devices, Łódź University of Technology, 90-924 Łódź, Poland)

  • Krzysztof Chwastek

    (Chair of Electric Power Engineering, Częstochowa University of Technology, 42-201 Częstochowa, Poland)

Abstract

Magnetic properties of hard magnets are currently attracting a great deal of attention. In the paper, the modified Harrison model was used to describe the saturating hysteresis loops of three praseodymium–dysprosium ribbons that differed in their chemical composition and processing conditions. Microstructural studies (TEM and diffraction patterns) were performed for the ribbons under consideration. The Harrison model incorporates a number of physically tangible concepts such as the anhysteretic curve, bifurcations, and bi-stability. The modification of the original approach consisted of adding an additional degree of freedom in the modeling by freeing the restraints present in the original version, in which both coercivity and remanence are functions of temperature only.

Suggested Citation

  • Anna Przybył & Piotr Gębara & Roman Gozdur & Krzysztof Chwastek, 2022. "Modeling of Magnetic Properties of Rare-Earth Hard Magnets," Energies, MDPI, vol. 15(21), pages 1-18, October.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:21:p:7951-:d:953831
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    References listed on IDEAS

    as
    1. Witold Żukowski & Amelia Kowalska & Jan Wrona, 2021. "High-Temperature Fluidized Bed Processing of Waste Electrical and Electronic Equipment (WEEE) as a Way to Recover Raw Materials," Energies, MDPI, vol. 14(18), pages 1-24, September.
    2. Reza Zeinali & Ozan Keysan, 2019. "A Rare-Earth Free Magnetically Geared Generator for Direct-Drive Wind Turbines," Energies, MDPI, vol. 12(3), pages 1-15, January.
    3. Ping Zheng & Weinan Wang & Mingqiao Wang & Yong Liu & Zhenxing Fu, 2017. "Investigation of the Magnetic Circuit and Performance of Less-Rare-Earth Interior Permanent-Magnet Synchronous Machines Used for Electric Vehicles," Energies, MDPI, vol. 10(12), pages 1-22, December.
    4. Roman Gozdur & Piotr Gębara & Krzysztof Chwastek, 2020. "A Study of Temperature-Dependent Hysteresis Curves for a Magnetocaloric Composite Based on La(Fe, Mn, Si) 13 -H Type Alloys," Energies, MDPI, vol. 13(6), pages 1-15, March.
    5. Petter Eklund & Sandra Eriksson, 2019. "The Influence of Permanent Magnet Material Properties on Generator Rotor Design," Energies, MDPI, vol. 12(7), pages 1-19, April.
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