JP2010074062A - NdFeB/FeCoナノコンポジット磁石 - Google Patents
NdFeB/FeCoナノコンポジット磁石 Download PDFInfo
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- JP2010074062A JP2010074062A JP2008242643A JP2008242643A JP2010074062A JP 2010074062 A JP2010074062 A JP 2010074062A JP 2008242643 A JP2008242643 A JP 2008242643A JP 2008242643 A JP2008242643 A JP 2008242643A JP 2010074062 A JP2010074062 A JP 2010074062A
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Abstract
【解決手段】NdFeB硬磁性相のコアにFeCo軟磁性相のシェルを被覆したナノコンポジット磁石において、前記FeCo中のFe含有量が30〜75at%であることを特徴とするNdFeB/FeCoナノコンポジット磁石。
【選択図】図1
Description
FeCo中のFeの割合が増加するに従って飽和磁化が増加し、Fe含有量60at%(Fe:Co=6:4)近傍で最大値となり、Fe含有量が更に増加すると減少した。
Claims (2)
- NdFeB硬磁性相のコアにFeCo軟磁性相のシェルを被覆したナノコンポジット磁石において、前記FeCo中のFe含有量が30〜75at%であることを特徴とするNdFeB/FeCoナノコンポジット磁石。
- 請求項1において、前記FeCo中のFe含有量が50〜70at%であることを特徴とするNdFeB/FeCoナノコンポジット磁石。
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JP2008242643A JP5330785B2 (ja) | 2008-09-22 | 2008-09-22 | NdFeB/FeCoナノコンポジット磁石 |
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JP2008242643A JP5330785B2 (ja) | 2008-09-22 | 2008-09-22 | NdFeB/FeCoナノコンポジット磁石 |
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JP2010074062A true JP2010074062A (ja) | 2010-04-02 |
JP5330785B2 JP5330785B2 (ja) | 2013-10-30 |
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JP2008242643A Expired - Fee Related JP5330785B2 (ja) | 2008-09-22 | 2008-09-22 | NdFeB/FeCoナノコンポジット磁石 |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012176655A1 (ja) * | 2011-06-21 | 2012-12-27 | 株式会社日立製作所 | 焼結磁石 |
WO2013005097A1 (en) | 2011-07-07 | 2013-01-10 | Toyota Jidosha Kabushiki Kaisha | Rare-earth nanocomposite magnet, and method for production of rare-earth nanocomposite magnet |
CN103021613A (zh) * | 2011-09-21 | 2013-04-03 | 株式会社日立制作所 | 烧结磁铁 |
CN103827987A (zh) * | 2011-07-20 | 2014-05-28 | 罗伯特·博世有限公司 | 磁性材料及其制造方法 |
WO2015068681A1 (ja) | 2013-11-05 | 2015-05-14 | 株式会社Ihi | 希土類永久磁石および希土類永久磁石の製造方法 |
US9818520B2 (en) | 2012-01-04 | 2017-11-14 | Toyota Jidosha Kabushiki Kaisha | Rare-earth nanocomposite magnet |
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JP2004363474A (ja) * | 2003-06-06 | 2004-12-24 | Yaskawa Electric Corp | 永久磁石用粒子の製造方法 |
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JP2008505500A (ja) * | 2004-06-30 | 2008-02-21 | ユニバーシティ・オブ・デイトン | 異方性ナノコンポジット希土類永久磁石とそれらの製造方法 |
-
2008
- 2008-09-22 JP JP2008242643A patent/JP5330785B2/ja not_active Expired - Fee Related
Patent Citations (8)
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JPH10340806A (ja) * | 1997-04-08 | 1998-12-22 | Hitachi Metals Ltd | 希土類−鉄系磁石材料およびその製造方法 |
JP2004179632A (ja) * | 2002-11-12 | 2004-06-24 | Nissan Motor Co Ltd | NdFeB系異方性交換スプリング磁石およびその製造方法 |
JP2004253697A (ja) * | 2003-02-21 | 2004-09-09 | Hitachi Metals Ltd | 永久磁石材料及び永久磁石 |
JP2004363474A (ja) * | 2003-06-06 | 2004-12-24 | Yaskawa Electric Corp | 永久磁石用粒子の製造方法 |
JP2005039089A (ja) * | 2003-07-16 | 2005-02-10 | Neomax Co Ltd | 微粒子を用いるナノ結晶磁石の製造方法 |
JP2008505500A (ja) * | 2004-06-30 | 2008-02-21 | ユニバーシティ・オブ・デイトン | 異方性ナノコンポジット希土類永久磁石とそれらの製造方法 |
JP2006173210A (ja) * | 2004-12-13 | 2006-06-29 | National Institute For Materials Science | ナノコンポジット磁石及びその製造方法 |
JP2006278470A (ja) * | 2005-03-28 | 2006-10-12 | Toyota Motor Corp | ナノコンポジット磁石 |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012176655A1 (ja) * | 2011-06-21 | 2012-12-27 | 株式会社日立製作所 | 焼結磁石 |
WO2013005097A1 (en) | 2011-07-07 | 2013-01-10 | Toyota Jidosha Kabushiki Kaisha | Rare-earth nanocomposite magnet, and method for production of rare-earth nanocomposite magnet |
CN103827987A (zh) * | 2011-07-20 | 2014-05-28 | 罗伯特·博世有限公司 | 磁性材料及其制造方法 |
US20140225696A1 (en) * | 2011-07-20 | 2014-08-14 | Robert Bosch Gmbh | Magnetic material and method for producing same |
CN103021613A (zh) * | 2011-09-21 | 2013-04-03 | 株式会社日立制作所 | 烧结磁铁 |
JP2013069738A (ja) * | 2011-09-21 | 2013-04-18 | Hitachi Ltd | 焼結磁石 |
US9129731B2 (en) | 2011-09-21 | 2015-09-08 | Hitachi, Ltd. | Sintered magnet |
US9818520B2 (en) | 2012-01-04 | 2017-11-14 | Toyota Jidosha Kabushiki Kaisha | Rare-earth nanocomposite magnet |
US10090090B2 (en) | 2012-01-04 | 2018-10-02 | Toyota Jidosha Kabushiki Kaisha | Rare-earth nanocomposite magnet |
WO2015068681A1 (ja) | 2013-11-05 | 2015-05-14 | 株式会社Ihi | 希土類永久磁石および希土類永久磁石の製造方法 |
KR20160078979A (ko) | 2013-11-05 | 2016-07-05 | 가부시키가이샤 아이에이치아이 | 희토류 영구자석 및 희토류 영구자석의 제조 방법 |
CN105706190A (zh) * | 2013-11-05 | 2016-06-22 | 株式会社Ihi | 稀土永磁材料以及稀土永磁材料的制造方法 |
US10629343B2 (en) | 2013-11-05 | 2020-04-21 | Ihi Corporation | Rare earth permanent magnet and rare earth permanent magnet manufacturing method |
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