JP2014502034A5 - - Google Patents
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- Publication number
- JP2014502034A5 JP2014502034A5 JP2013516808A JP2013516808A JP2014502034A5 JP 2014502034 A5 JP2014502034 A5 JP 2014502034A5 JP 2013516808 A JP2013516808 A JP 2013516808A JP 2013516808 A JP2013516808 A JP 2013516808A JP 2014502034 A5 JP2014502034 A5 JP 2014502034A5
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- rare earth
- grain boundary
- earth magnet
- heat treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 17
- 150000002910 rare earth metals Chemical class 0.000 claims description 16
- 238000005245 sintering Methods 0.000 claims description 12
- 238000002844 melting Methods 0.000 claims description 10
- 230000008018 melting Effects 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 4
- 238000009792 diffusion process Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims 3
- 229910052725 zinc Inorganic materials 0.000 claims 3
- 229910052692 Dysprosium Inorganic materials 0.000 claims 2
- 229910002546 FeCo Inorganic materials 0.000 claims 2
- 229910052771 Terbium Inorganic materials 0.000 claims 2
- 229910052799 carbon Inorganic materials 0.000 claims 2
- 229910052804 chromium Inorganic materials 0.000 claims 2
- 230000006866 deterioration Effects 0.000 claims 2
- 230000005496 eutectics Effects 0.000 claims 2
- 229910052733 gallium Inorganic materials 0.000 claims 2
- 229910052735 hafnium Inorganic materials 0.000 claims 2
- 229910052749 magnesium Inorganic materials 0.000 claims 2
- 229910052758 niobium Inorganic materials 0.000 claims 2
- 229910052710 silicon Inorganic materials 0.000 claims 2
- 229910052709 silver Inorganic materials 0.000 claims 2
- 229910052726 zirconium Inorganic materials 0.000 claims 2
- 229910052737 gold Inorganic materials 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 229910052720 vanadium Inorganic materials 0.000 claims 1
- 239000002159 nanocrystal Substances 0.000 description 14
- 238000010586 diagram Methods 0.000 description 13
- 239000011888 foil Substances 0.000 description 9
- 238000010791 quenching Methods 0.000 description 9
- 230000000171 quenching effect Effects 0.000 description 7
- 238000009766 low-temperature sintering Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 229910001172 neodymium magnet Inorganic materials 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000003917 TEM image Methods 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000007712 rapid solidification Methods 0.000 description 1
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP10306166.9A EP2444985B1 (en) | 2010-10-25 | 2010-10-25 | Production method of rare earth magnet |
| EP10306166.9 | 2010-10-25 | ||
| PCT/JP2011/061608 WO2012056755A1 (en) | 2010-10-25 | 2011-05-13 | Production method of rare earth magnet |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2014502034A JP2014502034A (ja) | 2014-01-23 |
| JP2014502034A5 true JP2014502034A5 (enExample) | 2016-04-07 |
| JP5933535B2 JP5933535B2 (ja) | 2016-06-08 |
Family
ID=43272396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2013516808A Active JP5933535B2 (ja) | 2010-10-25 | 2011-05-13 | 希土類磁石の製造方法 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US9520230B2 (enExample) |
| EP (1) | EP2444985B1 (enExample) |
| JP (1) | JP5933535B2 (enExample) |
| CN (1) | CN103189943B (enExample) |
| WO (1) | WO2012056755A1 (enExample) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104011811B (zh) * | 2012-01-04 | 2016-11-02 | 丰田自动车株式会社 | 稀土类纳米复合磁铁 |
| US10234410B2 (en) | 2012-03-12 | 2019-03-19 | Massachusetts Institute Of Technology | Stable binary nanocrystalline alloys and methods of identifying same |
| JP6649876B2 (ja) | 2013-03-14 | 2020-02-19 | マサチューセッツ インスティテュート オブ テクノロジー | 焼結されたナノ結晶合金 |
| KR20150033423A (ko) * | 2013-09-24 | 2015-04-01 | 엘지전자 주식회사 | 열간가압성형 공정을 이용한 이방성 열간가압성형 자석의 제조방법 및 이 방법으로 제조된 열간가압성형 자석 |
| JP5915637B2 (ja) | 2013-12-19 | 2016-05-11 | トヨタ自動車株式会社 | 希土類磁石の製造方法 |
| JP5924335B2 (ja) | 2013-12-26 | 2016-05-25 | トヨタ自動車株式会社 | 希土類磁石とその製造方法 |
| KR101868763B1 (ko) * | 2014-10-27 | 2018-06-18 | 제이엑스금속주식회사 | 희토류 박막 자석 및 그 제조 방법 |
| US11644288B2 (en) | 2015-09-17 | 2023-05-09 | Massachusetts Institute Of Technology | Nanocrystalline alloy penetrators |
| JP6848735B2 (ja) * | 2016-07-15 | 2021-03-24 | Tdk株式会社 | Ｒ−ｔ−ｂ系希土類永久磁石 |
| JP6604321B2 (ja) * | 2016-12-27 | 2019-11-13 | トヨタ自動車株式会社 | 希土類磁石の製造方法 |
| US11167422B2 (en) | 2017-03-30 | 2021-11-09 | Soft Robotics, Inc. | User-assisted robotic control systems |
| CN109979743B (zh) * | 2017-12-27 | 2022-03-04 | 宁波科宁达工业有限公司 | 一种钕铁硼磁体晶界扩散的方法及稀土磁体 |
| JP7110662B2 (ja) * | 2018-03-28 | 2022-08-02 | Tdk株式会社 | Ｒ‐ｔ‐ｂ系焼結磁石 |
| US11004600B2 (en) | 2018-06-19 | 2021-05-11 | Ford Global Technologies, Llc | Permanent magnet and method of making permanent magnet |
| CN112053824B (zh) * | 2019-06-05 | 2023-08-22 | 中国科学院宁波材料技术与工程研究所 | 一种烧结钕铁硼永磁体及其制备方法 |
| WO2021039763A1 (ja) * | 2019-08-26 | 2021-03-04 | 日本電産株式会社 | モータ、駆動システム、掃除機、無人飛行体、電動航空機 |
| CN112908667B (zh) * | 2020-06-29 | 2022-07-15 | 京磁材料科技股份有限公司 | 稀土永磁体的晶界扩散方法 |
| CN115728684B (zh) * | 2022-11-17 | 2025-11-25 | 杭州美磁科技有限公司 | 通过磁场分布识别晶界扩散钕铁硼磁体不可逆退磁的方法 |
| CN116230346B (zh) | 2023-02-16 | 2023-08-22 | 四川大学 | 一种各向异性纳米晶稀土永磁体及制备方法 |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2598949B1 (fr) * | 1986-05-23 | 1989-08-04 | Centre Nat Rech Scient | Procede pour la preparation de cristaux finement divises a partir d'un alliage metallique, notamment pour la preparation d'aimants permanents |
| US5405455A (en) | 1991-06-04 | 1995-04-11 | Shin-Etsu Chemical Co. Ltd. | Rare earth-based permanent magnet |
| JP2853839B2 (ja) | 1991-06-04 | 1999-02-03 | 信越化学工業株式会社 | 希土類永久磁石の製造方法 |
| JP2853838B2 (ja) | 1991-06-04 | 1999-02-03 | 信越化学工業株式会社 | 希土類永久磁石の製造方法 |
| US6287391B1 (en) * | 1997-06-26 | 2001-09-11 | Sumitomo Special Metals Co., Ltd. | Method of producing laminated permanent magnet |
| US6511552B1 (en) * | 1998-03-23 | 2003-01-28 | Sumitomo Special Metals Co., Ltd. | Permanent magnets and R-TM-B based permanent magnets |
| JP4337209B2 (ja) * | 2000-02-22 | 2009-09-30 | 日立金属株式会社 | 永久磁石薄膜およびその製造方法 |
| CN1212626C (zh) * | 2001-05-15 | 2005-07-27 | 株式会社新王磁材 | 铁基稀土合金纳米复合磁体及其制造方法 |
| US20040025974A1 (en) | 2002-05-24 | 2004-02-12 | Don Lee | Nanocrystalline and nanocomposite rare earth permanent magnet materials and method of making the same |
| CN1735947A (zh) | 2002-05-24 | 2006-02-15 | 代顿大学 | 纳米晶态和纳米复合稀土永磁体材料及其制造方法 |
| EP1744328B1 (en) * | 2005-06-10 | 2012-07-25 | Nissan Motor Co., Ltd. | Rare earth magnet having high strength and high electrical resistance |
| KR101378090B1 (ko) | 2007-05-02 | 2014-03-27 | 히다찌긴조꾸가부시끼가이사 | Ｒ－ｔ－ｂ계 소결 자석 |
| US20100261038A1 (en) * | 2007-11-02 | 2010-10-14 | Nobuyoshi Imaoka | Composite magnetic material for magnet and method for manufacturing such material |
| EP2099039A1 (en) | 2008-02-29 | 2009-09-09 | Daido Steel Co.,Ltd. | Material for magnetic anisotropic magnet |
| JP5532745B2 (ja) | 2009-08-21 | 2014-06-25 | 大同特殊鋼株式会社 | 磁気異方性磁石及びその製造方法 |
| JP2010263172A (ja) | 2008-07-04 | 2010-11-18 | Daido Steel Co Ltd | 希土類磁石およびその製造方法 |
| CN104143402B (zh) * | 2009-01-07 | 2017-05-24 | 大同特殊钢株式会社 | 磁各向异性磁体原材料 |
| JP5692231B2 (ja) | 2010-07-16 | 2015-04-01 | トヨタ自動車株式会社 | 希土類磁石の製造方法、及び希土類磁石 |
-
2010
- 2010-10-25 EP EP10306166.9A patent/EP2444985B1/en not_active Not-in-force
-
2011
- 2011-05-13 US US13/824,572 patent/US9520230B2/en not_active Expired - Fee Related
- 2011-05-13 WO PCT/JP2011/061608 patent/WO2012056755A1/en not_active Ceased
- 2011-05-13 CN CN201180049051.8A patent/CN103189943B/zh not_active Expired - Fee Related
- 2011-05-13 JP JP2013516808A patent/JP5933535B2/ja active Active
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