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Recent advances in SmFe12-based permanent magnets

Science and technology of advanced materials, 2021-12, Vol.22 (1), p.449-460 [Peer Reviewed Journal]

2021 The Author(s). Published by National Institute for Materials Science in partnership with Taylor & Francis Group. 2021 ;2021 The Author(s). Published by National Institute for Materials Science in partnership with Taylor & Francis Group. 2021 The Author(s) ;ISSN: 1468-6996 ;EISSN: 1878-5514 ;DOI: 10.1080/14686996.2021.1913038 ;PMID: 34211334

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  • Title:
    Recent advances in SmFe12-based permanent magnets
  • Author: Takahashi, Yukiko ; Sepehri-Amin, Hossein ; Ohkubo, Tadakatsu
  • Subjects: 203 Magnetics / Spintronics / Superconductors ; 40 Optical ; coercivity ; Focus on Science and Technology of Element-Strategic Permanent Magnets ; magnetic and electronic device materials ; Permanent magnet ; Sm(Fe-Co) ; sm(fe-co)12 ; ThMn ; thmn12
  • Is Part Of: Science and technology of advanced materials, 2021-12, Vol.22 (1), p.449-460
  • Description: To realize a sustainable society, 'green technology' with low (or even zero) CO 2 emissions is required. A key material in such technology is a permanent magnet because it is utilized for electric-power conversion in several applications including electric vehicles (EVs), hybrid EVs (HEVs), and turbines for wind power generation. To realize highly efficient electric-power conversion, a stronger permanent magnet than Nd-Fe-B is necessary. One potential candidate is a Fe-rich SmFe 12 -based compound with a ThMn 12 structure. In this paper, the phase stability, structure, and intrinsic and extrinsic magnetic properties in both film and bulk forms are reviewed. Based on these results, a possible way to realize a strong SmFe 12 -based permanent magnet in bulk form is discussed.
  • Publisher: Taylor & Francis
  • Language: English
  • Identifier: ISSN: 1468-6996
    EISSN: 1878-5514
    DOI: 10.1080/14686996.2021.1913038
    PMID: 34211334
  • Source: PubMed Central (Open access)
    DOAJ Directory of Open Access Journals
    Taylor & Francis Open Access
    Alma/SFX Local Collection
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