DE3884817D1 - Magnetisch anisotrope sintermagnete. - Google Patents

Magnetisch anisotrope sintermagnete.

Info

Publication number
DE3884817D1
DE3884817D1 DE88902948T DE3884817T DE3884817D1 DE 3884817 D1 DE3884817 D1 DE 3884817D1 DE 88902948 T DE88902948 T DE 88902948T DE 3884817 T DE3884817 T DE 3884817T DE 3884817 D1 DE3884817 D1 DE 3884817D1
Authority
DE
Germany
Prior art keywords
anisotrope
magnetically
sinter magnet
sinter
magnet
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.)
Expired - Lifetime
Application number
DE88902948T
Other languages
English (en)
Other versions
DE3884817T2 (de
Inventor
Satoshi Hirosawa
Kohki Tokuhara
Ken Makita
Hiroshi Nagata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Neomax Co Ltd
Original Assignee
Sumitomo Special Metals Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Special Metals Co Ltd filed Critical Sumitomo Special Metals Co Ltd
Application granted granted Critical
Publication of DE3884817D1 publication Critical patent/DE3884817D1/de
Publication of DE3884817T2 publication Critical patent/DE3884817T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
DE88902948T 1988-02-29 1988-04-01 Magnetisch anisotrope sintermagnete. Expired - Lifetime DE3884817T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63048127A JP2741508B2 (ja) 1988-02-29 1988-02-29 磁気異方性焼結磁石とその製造方法
PCT/JP1988/000336 WO1989008318A1 (en) 1988-02-29 1988-04-01 Magnetically anisotropic sintered magnets

Publications (2)

Publication Number Publication Date
DE3884817D1 true DE3884817D1 (de) 1993-11-11
DE3884817T2 DE3884817T2 (de) 1994-03-24

Family

ID=12794660

Family Applications (1)

Application Number Title Priority Date Filing Date
DE88902948T Expired - Lifetime DE3884817T2 (de) 1988-02-29 1988-04-01 Magnetisch anisotrope sintermagnete.

Country Status (5)

Country Link
US (3) US20010023716A1 (de)
EP (1) EP0416098B1 (de)
JP (1) JP2741508B2 (de)
DE (1) DE3884817T2 (de)
WO (1) WO1989008318A1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2031127C (en) * 1989-12-01 1999-01-19 Satoshi Hirosawa Permanent magnet
US6994755B2 (en) * 2002-04-29 2006-02-07 University Of Dayton Method of improving toughness of sintered RE-Fe-B-type, rare earth permanent magnets
US20040025974A1 (en) * 2002-05-24 2004-02-12 Don Lee Nanocrystalline and nanocomposite rare earth permanent magnet materials and method of making the same
US20060054245A1 (en) * 2003-12-31 2006-03-16 Shiqiang Liu Nanocomposite permanent magnets
CN1985338A (zh) * 2004-06-30 2007-06-20 代顿大学 各向异性的纳米复合稀土永磁体及其制造方法
DE112006000070T5 (de) 2005-07-15 2008-08-14 Hitachi Metals, Ltd. Seltenerdmetall-Sintermagnet und Verfahren zu seiner Herstellung
JP5274781B2 (ja) 2007-03-22 2013-08-28 昭和電工株式会社 Ｒ−ｔ−ｂ系合金及びｒ−ｔ−ｂ系合金の製造方法、ｒ−ｔ−ｂ系希土類永久磁石用微粉、ｒ−ｔ−ｂ系希土類永久磁石
WO2009150843A1 (ja) * 2008-06-13 2009-12-17 日立金属株式会社 Ｒ－Ｔ－Ｃｕ－Ｍｎ－Ｂ系焼結磁石
JP5120710B2 (ja) * 2008-06-13 2013-01-16 日立金属株式会社 ＲＬ−ＲＨ−Ｔ−Ｍｎ−Ｂ系焼結磁石
JP2011258935A (ja) * 2010-05-14 2011-12-22 Shin Etsu Chem Co Ltd Ｒ−ｔ−ｂ系希土類焼結磁石
EP3011573B1 (de) 2013-06-17 2020-06-10 Urban Mining Technology Company, LLC Magnetrezyklierung um nd-fe-b-magneten mit verbesserter oder restaurierter magnetischer leistung zu schaffen
US9336932B1 (en) 2014-08-15 2016-05-10 Urban Mining Company Grain boundary engineering

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0778269B2 (ja) * 1983-05-31 1995-08-23 住友特殊金属株式会社 永久磁石用希土類・鉄・ボロン系正方晶化合物
CA1316375C (en) * 1982-08-21 1993-04-20 Masato Sagawa Magnetic materials and permanent magnets
US4792368A (en) * 1982-08-21 1988-12-20 Sumitomo Special Metals Co., Ltd. Magnetic materials and permanent magnets
DE3379084D1 (en) * 1982-09-27 1989-03-02 Sumitomo Spec Metals Permanently magnetizable alloys, magnetic materials and permanent magnets comprising febr or (fe,co)br (r=vave earth)
US4597938A (en) * 1983-05-21 1986-07-01 Sumitomo Special Metals Co., Ltd. Process for producing permanent magnet materials
JPS6032306A (ja) * 1983-08-02 1985-02-19 Sumitomo Special Metals Co Ltd 永久磁石
JPS6034005A (ja) * 1983-08-04 1985-02-21 Sumitomo Special Metals Co Ltd 永久磁石
JPS61208807A (ja) * 1985-03-13 1986-09-17 Hitachi Metals Ltd 永久磁石
JPS62165305A (ja) * 1986-01-16 1987-07-21 Hitachi Metals Ltd 熱安定性良好な永久磁石およびその製造方法

Also Published As

Publication number Publication date
JPH01220803A (ja) 1989-09-04
DE3884817T2 (de) 1994-03-24
US20040031543A1 (en) 2004-02-19
JP2741508B2 (ja) 1998-04-22
WO1989008318A1 (en) 1989-09-08
EP0416098A1 (de) 1991-03-13
US20010023716A1 (en) 2001-09-27
EP0416098B1 (de) 1993-10-06
US20020139447A1 (en) 2002-10-03

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