JP2008117855A - ナノコンポジット磁石の製造方法 - Google Patents
ナノコンポジット磁石の製造方法 Download PDFInfo
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- JP2008117855A JP2008117855A JP2006297893A JP2006297893A JP2008117855A JP 2008117855 A JP2008117855 A JP 2008117855A JP 2006297893 A JP2006297893 A JP 2006297893A JP 2006297893 A JP2006297893 A JP 2006297893A JP 2008117855 A JP2008117855 A JP 2008117855A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
- H01F41/0266—Moulding; Pressing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/17—Metallic particles coated with metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/16—Making metallic powder or suspensions thereof using chemical processes
- B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
- B22F9/24—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y25/00—Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
- H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
- H01F1/047—Alloys characterised by their composition
- H01F1/053—Alloys characterised by their composition containing rare earth metals
- H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
- H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
- H01F1/0579—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B with exchange spin coupling between hard and soft nanophases, e.g. nanocomposite spring magnets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C2202/00—Physical properties
- C22C2202/02—Magnetic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
- H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
- H01F1/047—Alloys characterised by their composition
- H01F1/053—Alloys characterised by their composition containing rare earth metals
- H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
- H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
- H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
- H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
- H01F1/0577—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together sintered
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Power Engineering (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Nanotechnology (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Hard Magnetic Materials (AREA)
- Powder Metallurgy (AREA)
Abstract
【解決手段】Nd2Fe14B化合物の粒子を、界面活性剤を含む溶媒中に加え分散させた後、Fe先駆物質を添加し、Nd2Fe14B化合物の粒子の表面上にFe粒子を析出させ、乾燥、焼結することにより、Nd2Fe14B化合物の硬磁性相をコアとし、Feの軟磁性相をシェルとするコア−シェル構造を有するナノコンポジット磁石を製造する。
【選択図】図1
Description
2 Feシェル
Claims (6)
- Nd2Fe14B化合物の硬磁性相をコアとし、Feの軟磁性相をシェルとするコア−シェル構造を有するナノコンポジット磁石の製造方法であって、Nd2Fe14B化合物の粒子を、界面活性剤を含む溶媒中に加え分散させた後、Fe先駆物質を添加し、Nd2Fe14B化合物の粒子の表面上にFe粒子を析出させ、乾燥、焼結することを含む方法。
- Fe先駆物質の添加量が1.0〜3.0モル%である、請求項1記載の方法。
- Fe先駆物質を還元することによりFe粒子を析出させる、請求項1又は2記載の方法。
- Fe先駆物質が鉄アセチルアセトナートである、請求項3記載の方法。
- Fe先駆物質を熱分解させることによりFe粒子を析出させる、請求項1又は2記載の方法。
- Fe先駆物質がペンタカルボニル鉄である、請求項5記載の方法。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006297893A JP2008117855A (ja) | 2006-11-01 | 2006-11-01 | ナノコンポジット磁石の製造方法 |
EP07859355A EP2087493A2 (en) | 2006-11-01 | 2007-11-01 | Production method for nanocomposite magnet |
CNA2007800466141A CN101563735A (zh) | 2006-11-01 | 2007-11-01 | 纳米复合磁体的制造方法 |
US12/513,245 US20100104767A1 (en) | 2006-11-01 | 2007-11-01 | Production method for nanocomposite magnet |
PCT/IB2007/004340 WO2008053371A2 (en) | 2006-11-01 | 2007-11-01 | Production method for nanocomposite magnet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006297893A JP2008117855A (ja) | 2006-11-01 | 2006-11-01 | ナノコンポジット磁石の製造方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2008117855A true JP2008117855A (ja) | 2008-05-22 |
Family
ID=39310027
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006297893A Pending JP2008117855A (ja) | 2006-11-01 | 2006-11-01 | ナノコンポジット磁石の製造方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20100104767A1 (ja) |
EP (1) | EP2087493A2 (ja) |
JP (1) | JP2008117855A (ja) |
CN (1) | CN101563735A (ja) |
WO (1) | WO2008053371A2 (ja) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010229443A (ja) * | 2009-03-26 | 2010-10-14 | Hitachi Metals Ltd | 複合粒子の製造方法 |
CN102000816A (zh) * | 2010-10-27 | 2011-04-06 | 华南理工大学 | 一种交换耦合双相纳米复合永磁颗粒及其制备方法 |
JP2011159733A (ja) * | 2010-01-29 | 2011-08-18 | Toyota Motor Corp | ナノコンポジット磁石の製造方法 |
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 |
KR101778164B1 (ko) | 2012-02-03 | 2017-09-13 | 엘지전자 주식회사 | 코어-쉘 구조를 가지는 경-연자성 혼성 구조의 나노입자, 상기 나노입자를 이용하여 제조한 자석 및 이들의 제조방법 |
WO2020137741A1 (ja) * | 2018-12-27 | 2020-07-02 | キヤノン株式会社 | 磁石、および磁石の製造方法 |
US11657935B2 (en) | 2018-07-17 | 2023-05-23 | Korea Institute Of Materials Science | Iron oxide magnetic powder and manufacturing method therefor |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012068178A1 (en) * | 2010-11-15 | 2012-05-24 | The Board Of Trustees Of The University Of Alabama For And On Behalf Of The University Of Alabama | Magnetic exchange coupled core-shell nanomagnets |
CN102366832B (zh) * | 2011-06-30 | 2013-07-03 | 燕山大学 | 各向异性钐钴/钴纳米复合磁体的制备方法 |
CN103827986B (zh) | 2011-08-17 | 2017-02-15 | 明尼苏达大学董事会 | 氮化铁永磁体和用于形成氮化铁永磁体的技术 |
CN102956337B (zh) * | 2012-11-09 | 2016-05-25 | 厦门钨业股份有限公司 | 一种烧结Nd-Fe-B系磁铁的省却工序的制作方法 |
CA2899827C (en) | 2013-02-07 | 2016-08-23 | Jian-Ping Wang | Iron nitride permanent magnet and technique for forming iron nitride permanent magnet |
JP2016536777A (ja) | 2013-06-27 | 2016-11-24 | リージェンツ オブ ザ ユニバーシティ オブ ミネソタ | 窒化鉄材料及び窒化鉄材料を含む磁石 |
BR112016022561A2 (pt) | 2014-03-28 | 2017-08-15 | Univ Minnesota | Material magnético de nitreto de ferro incluindo nanopartículas revestidas |
US9994949B2 (en) | 2014-06-30 | 2018-06-12 | Regents Of The University Of Minnesota | Applied magnetic field synthesis and processing of iron nitride magnetic materials |
US10573439B2 (en) | 2014-08-08 | 2020-02-25 | Regents Of The University Of Minnesota | Multilayer iron nitride hard magnetic materials |
US10002694B2 (en) | 2014-08-08 | 2018-06-19 | Regents Of The University Of Minnesota | Inductor including alpha″-Fe16Z2 or alpha″-Fe16(NxZ1-x)2, where Z includes at least one of C, B, or O |
US10072356B2 (en) | 2014-08-08 | 2018-09-11 | Regents Of The University Of Minnesota | Magnetic material including α″-Fe16(NxZ1-x)2 or a mixture of α″-Fe16Z2 and α″-Fe16N2, where Z includes at least one of C, B, or O |
EP3177752A1 (en) | 2014-08-08 | 2017-06-14 | Regents of the University of Minnesota | Forming iron nitride hard magnetic materials using chemical vapor deposition or liquid phase epitaxy |
BR112017016057A2 (pt) | 2015-01-26 | 2018-04-03 | Univ Minnesota | preservação da tensão em ímã de nitreto de ferro |
JP6365447B2 (ja) * | 2015-07-08 | 2018-08-01 | トヨタ自動車株式会社 | ロータの製造方法 |
CN105788800B (zh) * | 2016-03-08 | 2017-09-12 | 佛山市程显科技有限公司 | 一种采用增材制造技术制备的磁芯结构以及其应用 |
CN105551708A (zh) * | 2016-03-08 | 2016-05-04 | 佛山市程显科技有限公司 | 一种增材制造磁芯以及使用该磁芯的磁性器件 |
CN108987015B (zh) * | 2018-06-28 | 2020-06-30 | 宁波招宝磁业有限公司 | 一种高性能钕铁硼磁体的制备方法 |
Family Cites Families (2)
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JP4072893B2 (ja) * | 2002-06-14 | 2008-04-09 | 株式会社安川電機 | 永久磁石用粒子とその製造方法及び永久磁石並びに磁性体微粒子 |
JP4525003B2 (ja) * | 2003-06-06 | 2010-08-18 | 株式会社安川電機 | 永久磁石用粒子の製造方法 |
-
2006
- 2006-11-01 JP JP2006297893A patent/JP2008117855A/ja active Pending
-
2007
- 2007-11-01 WO PCT/IB2007/004340 patent/WO2008053371A2/en active Application Filing
- 2007-11-01 EP EP07859355A patent/EP2087493A2/en not_active Withdrawn
- 2007-11-01 US US12/513,245 patent/US20100104767A1/en not_active Abandoned
- 2007-11-01 CN CNA2007800466141A patent/CN101563735A/zh active Pending
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010229443A (ja) * | 2009-03-26 | 2010-10-14 | Hitachi Metals Ltd | 複合粒子の製造方法 |
JP2011159733A (ja) * | 2010-01-29 | 2011-08-18 | Toyota Motor Corp | ナノコンポジット磁石の製造方法 |
CN102000816A (zh) * | 2010-10-27 | 2011-04-06 | 华南理工大学 | 一种交换耦合双相纳米复合永磁颗粒及其制备方法 |
KR101778164B1 (ko) | 2012-02-03 | 2017-09-13 | 엘지전자 주식회사 | 코어-쉘 구조를 가지는 경-연자성 혼성 구조의 나노입자, 상기 나노입자를 이용하여 제조한 자석 및 이들의 제조방법 |
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 |
US10629343B2 (en) | 2013-11-05 | 2020-04-21 | Ihi Corporation | Rare earth permanent magnet and rare earth permanent magnet manufacturing method |
US11657935B2 (en) | 2018-07-17 | 2023-05-23 | Korea Institute Of Materials Science | Iron oxide magnetic powder and manufacturing method therefor |
WO2020137741A1 (ja) * | 2018-12-27 | 2020-07-02 | キヤノン株式会社 | 磁石、および磁石の製造方法 |
JP2020107732A (ja) * | 2018-12-27 | 2020-07-09 | キヤノン株式会社 | 磁石、および磁石の製造方法 |
JP7278768B2 (ja) | 2018-12-27 | 2023-05-22 | キヤノン株式会社 | 磁石、および磁石の製造方法 |
Also Published As
Publication number | Publication date |
---|---|
WO2008053371A3 (en) | 2008-07-17 |
EP2087493A2 (en) | 2009-08-12 |
US20100104767A1 (en) | 2010-04-29 |
CN101563735A (zh) | 2009-10-21 |
WO2008053371A2 (en) | 2008-05-08 |
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