SmFe12系永久磁石の最近の進展

Y. K. Takahashi; H. Sepehri-Amin; T. Ohkubo

doi:10.2497/jjspm.69.S74

SmFe₁₂系永久磁石の最近の進展

Translated title of the contribution: Recent Advances in SmFe₁₂-based Permanent Magnets

Y. K. Takahashi^*, H. Sepehri-Amin, T. Ohkubo

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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.

Translated title of the contribution	Recent Advances in SmFe₁₂-based Permanent Magnets
Original language	Japanese
Pages (from-to)	S74-S83
Journal	Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume	69
DOIs	https://doi.org/10.2497/jjspm.69.S74
Publication status	Published - 2022
Externally published	Yes

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering
Metals and Alloys
Materials Chemistry

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title = "SmFe12系永久磁石の最近の進展",

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.",

keywords = "Coercivity, Permanent magnet, Sm(Fe-Co), ThMn",

author = "Takahashi, {Y. K.} and H. Sepehri-Amin and T. Ohkubo",

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AU - Takahashi, Y. K.

AU - Sepehri-Amin, H.

AU - Ohkubo, T.

PY - 2022

Y1 - 2022

N2 - 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.

AB - 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.

KW - Coercivity

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KW - Sm(Fe-Co)

KW - ThMn

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SmFe₁₂系永久磁石の最近の進展

Abstract

ASJC Scopus subject areas

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