Recent advances in SmFe12-based permanent magnets
Open Access
- 22 June 2021
- journal article
- review article
- Published by Taylor & Francis in Science and Technology of Advanced Materials
- Vol. 22 (1) , 449-460
Abstract
To realize a sustainable society, ‘green technology’ with low (or even zero) CO2 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 SmFe12-based compound with a ThMn12 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 SmFe12-based permanent magnet in bulk form is discussed. Graphical abstractKeywords
Funding Information
- Ministry of Education, Culture, Sports, Science and Technology (JPMXP0112101004)
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