Magnetic properties of low rare-earth content (Nd = 2 - 7 at.%) α-Fe/Nd2Fe14B type bulk exchange-spring magnets

Hideaki Ono, Tetsuro Tayu, Norihisa Waki, Tatsuo Sugiyama, Munekatsu Shimada, Makoto Kanou, Akira Fujiki, Hiroshi Yamamoto, Keisuke Takasugi, Masato Tani

研究成果: Article

抄録

Magnetic properties and structures of low rare-earth content (Nd = 2 - 7 at.%) α-Fe/Nd2Fe14B type Nd-Fe-Ce-V-B system bulk exchange-spring magnets prepared by the Spark Plasma Sintering (SPS) method were investigated. In this range of Nd content, the bulk magnets showed the same magnetic properties as those of the annealed ribbons used as the raw materials. The saturation magnetization and soft/hard phase ratio corresponded with the estimated values. However, the exchange coupling strength decreased conspicuously with a lower Nd content presumably as a result of an increase in the grain size.

元の言語English
ページ(範囲)141-145
ページ数5
ジャーナルFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
49
発行部数2
出版物ステータスPublished - 2002 2
外部発表Yes

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Rare earths
Magnets
Magnetic properties
Exchange coupling
Spark plasma sintering
Magnetic structure
Saturation magnetization
Raw materials

ASJC Scopus subject areas

  • Mechanical Engineering
  • Metals and Alloys

これを引用

Magnetic properties of low rare-earth content (Nd = 2 - 7 at.%) α-Fe/Nd2Fe14B type bulk exchange-spring magnets. / Ono, Hideaki; Tayu, Tetsuro; Waki, Norihisa; Sugiyama, Tatsuo; Shimada, Munekatsu; Kanou, Makoto; Fujiki, Akira; Yamamoto, Hiroshi; Takasugi, Keisuke; Tani, Masato.

:: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, 巻 49, 番号 2, 02.2002, p. 141-145.

研究成果: Article

Ono, Hideaki ; Tayu, Tetsuro ; Waki, Norihisa ; Sugiyama, Tatsuo ; Shimada, Munekatsu ; Kanou, Makoto ; Fujiki, Akira ; Yamamoto, Hiroshi ; Takasugi, Keisuke ; Tani, Masato. / Magnetic properties of low rare-earth content (Nd = 2 - 7 at.%) α-Fe/Nd2Fe14B type bulk exchange-spring magnets. :: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy. 2002 ; 巻 49, 番号 2. pp. 141-145.
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abstract = "Magnetic properties and structures of low rare-earth content (Nd = 2 - 7 at.{\%}) α-Fe/Nd2Fe14B type Nd-Fe-Ce-V-B system bulk exchange-spring magnets prepared by the Spark Plasma Sintering (SPS) method were investigated. In this range of Nd content, the bulk magnets showed the same magnetic properties as those of the annealed ribbons used as the raw materials. The saturation magnetization and soft/hard phase ratio corresponded with the estimated values. However, the exchange coupling strength decreased conspicuously with a lower Nd content presumably as a result of an increase in the grain size.",
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author = "Hideaki Ono and Tetsuro Tayu and Norihisa Waki and Tatsuo Sugiyama and Munekatsu Shimada and Makoto Kanou and Akira Fujiki and Hiroshi Yamamoto and Keisuke Takasugi and Masato Tani",
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T1 - Magnetic properties of low rare-earth content (Nd = 2 - 7 at.%) α-Fe/Nd2Fe14B type bulk exchange-spring magnets

AU - Ono, Hideaki

AU - Tayu, Tetsuro

AU - Waki, Norihisa

AU - Sugiyama, Tatsuo

AU - Shimada, Munekatsu

AU - Kanou, Makoto

AU - Fujiki, Akira

AU - Yamamoto, Hiroshi

AU - Takasugi, Keisuke

AU - Tani, Masato

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AB - Magnetic properties and structures of low rare-earth content (Nd = 2 - 7 at.%) α-Fe/Nd2Fe14B type Nd-Fe-Ce-V-B system bulk exchange-spring magnets prepared by the Spark Plasma Sintering (SPS) method were investigated. In this range of Nd content, the bulk magnets showed the same magnetic properties as those of the annealed ribbons used as the raw materials. The saturation magnetization and soft/hard phase ratio corresponded with the estimated values. However, the exchange coupling strength decreased conspicuously with a lower Nd content presumably as a result of an increase in the grain size.

KW - α-Fe/NdFeB type exchange-spring magnets

KW - Bulk exchange-spring magnets

KW - Low rare-earth content (Nd = 2 - 7 at.%)

KW - Magnetic properties

KW - Nd-Fe-Co-V-B system alloys

KW - Spark Plasma Sintering (SPS) method

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