Modeling of Magnetic Properties of Rare-Earth Hard Magnets

Anna Przybył, Piotr Gębara (), Roman Gozdur and Krzysztof Chwastek ()
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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

Energies, 2022, vol. 15, issue 21, 1-18

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.

Keywords: hard magnets; praseodymium–dysprosium ribbons; magnetic properties; hysteresis; modeling (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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