FR2664086B1 - - Google Patents

Info

Publication number
FR2664086B1
FR2664086B1 FR9008582A FR9008582A FR2664086B1 FR 2664086 B1 FR2664086 B1 FR 2664086B1 FR 9008582 A FR9008582 A FR 9008582A FR 9008582 A FR9008582 A FR 9008582A FR 2664086 B1 FR2664086 B1 FR 2664086B1
Authority
FR
France
Prior art keywords
temperature
dehydridizing
hydridizing
vacuum
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.)
Expired - Fee Related
Application number
FR9008582A
Other languages
English (en)
French (fr)
Other versions
FR2664086A1 (fr
Inventor
Daniel Fruchert
Salvatore Miraglia
Paul Mollard
Rene Perrier De La Bathie
Robert Fruchartr
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.)
Centre National de la Recherche Scientifique CNRS
Original Assignee
Centre National de la Recherche Scientifique CNRS
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 Centre National de la Recherche Scientifique CNRS filed Critical Centre National de la Recherche Scientifique CNRS
Priority to FR9008582A priority Critical patent/FR2664086A1/fr
Priority to DE69102277T priority patent/DE69102277T2/de
Priority to EP91912597A priority patent/EP0538320B1/fr
Priority to JP3511665A priority patent/JPH06501135A/ja
Priority to PCT/FR1991/000517 priority patent/WO1992000595A1/fr
Priority to AT91912597T priority patent/ATE106600T1/de
Publication of FR2664086A1 publication Critical patent/FR2664086A1/fr
Application granted granted Critical
Publication of FR2664086B1 publication Critical patent/FR2664086B1/fr
Priority to US08/318,909 priority patent/US5580396A/en
Granted legal-status Critical Current

Links

Classifications

    • 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
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/023—Hydrogen absorption
    • 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
    • H01F1/0573—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 obtained by reduction or by hydrogen decrepitation or embrittlement
    • 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
    • H01F1/06—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 in the form of particles, e.g. powder
    • H01F1/065—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 in the form of particles, e.g. powder obtained by a reduction

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Paints Or Removers (AREA)
FR9008582A 1990-07-02 1990-07-02 Procede perfectionne pour l'optimisation des proprietes magnetiques de materiaux magnetiques pulverulents et produits ainsi obtenus. Granted FR2664086A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR9008582A FR2664086A1 (fr) 1990-07-02 1990-07-02 Procede perfectionne pour l'optimisation des proprietes magnetiques de materiaux magnetiques pulverulents et produits ainsi obtenus.
DE69102277T DE69102277T2 (de) 1990-07-02 1991-06-28 Behandlung von magnetpulvermaterialien und so erhaltene gegenstände.
EP91912597A EP0538320B1 (fr) 1990-07-02 1991-06-28 Traitement de materiaux magnetiques pulverulents et produits ainsi obtenus
JP3511665A JPH06501135A (ja) 1990-07-02 1991-06-28 粉体磁性材料の処理方法とそれにより得られる粉体材料
PCT/FR1991/000517 WO1992000595A1 (fr) 1990-07-02 1991-06-28 Traitement de materiaux magnetiques pulverulents et produits ainsi obtenus
AT91912597T ATE106600T1 (de) 1990-07-02 1991-06-28 Behandlung von magnetpulvermaterialien und so erhaltene gegenstände.
US08/318,909 US5580396A (en) 1990-07-02 1994-10-05 Treatment of pulverant magnetic materials and products thus obtained

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9008582A FR2664086A1 (fr) 1990-07-02 1990-07-02 Procede perfectionne pour l'optimisation des proprietes magnetiques de materiaux magnetiques pulverulents et produits ainsi obtenus.

Publications (2)

Publication Number Publication Date
FR2664086A1 FR2664086A1 (fr) 1992-01-03
FR2664086B1 true FR2664086B1 (xx) 1994-08-19

Family

ID=9398426

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9008582A Granted FR2664086A1 (fr) 1990-07-02 1990-07-02 Procede perfectionne pour l'optimisation des proprietes magnetiques de materiaux magnetiques pulverulents et produits ainsi obtenus.

Country Status (6)

Country Link
EP (1) EP0538320B1 (xx)
JP (1) JPH06501135A (xx)
AT (1) ATE106600T1 (xx)
DE (1) DE69102277T2 (xx)
FR (1) FR2664086A1 (xx)
WO (1) WO1992000595A1 (xx)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL101943A0 (en) * 1991-05-24 1992-12-30 Genentech Inc Structure,production and use of heregulin
FR2997095B1 (fr) * 2012-10-24 2014-11-28 Commissariat Energie Atomique Procede pour isoler les terres rares et/ou element(s) metallique(s) annexe(s) contenus dans la phase magnetique d'aimants permanents.
FR3030866B1 (fr) 2014-12-18 2021-03-12 Commissariat Energie Atomique Aimant permanent fritte
FR3044161B1 (fr) 2015-11-25 2019-05-03 Commissariat A L'energie Atomique Et Aux Energies Alternatives Aimant permanent fritte
CN109604615B (zh) * 2018-12-17 2021-01-15 江苏晨朗电子集团有限公司 低成本制备烧结钕铁硼永磁体的方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60119701A (ja) * 1983-12-01 1985-06-27 Sumitomo Special Metals Co Ltd 希土類・ボロン・鉄系永久磁石用合金粉末の製造方法
FR2566758B1 (fr) * 1984-06-29 1990-01-12 Centre Nat Rech Scient Nouveaux hydrures de terre rare/fer/bore et terre rare/cobalt/bore magnetiques, leur procede de fabrication et de fabrication des produits deshydrures pulverulents correspondants, leurs applications
JPS6390104A (ja) * 1986-10-03 1988-04-21 Tdk Corp 希土類−鉄−ホウ素系永久磁石の製造方法
JPS6447841A (en) * 1987-08-12 1989-02-22 Tdk Corp Production of rare earth alloy magnet
JPS6445103A (en) * 1987-08-13 1989-02-17 Tdk Corp Manufacture of rare earth alloy magnet
JPS6448406A (en) * 1987-08-19 1989-02-22 Mitsubishi Metal Corp Magnet powder for sintering rare earth-iron-boron and manufacture thereof
EP0304054B1 (en) * 1987-08-19 1994-06-08 Mitsubishi Materials Corporation Rare earth-iron-boron magnet powder and process of producing same
US4760966A (en) * 1987-08-28 1988-08-02 The United States Of America As Represented By The Secretary Of The Army Method of comminuting rare earth magnet alloys into fine particles

Also Published As

Publication number Publication date
JPH06501135A (ja) 1994-01-27
DE69102277D1 (de) 1994-07-07
EP0538320B1 (fr) 1994-06-01
DE69102277T2 (de) 1994-09-15
FR2664086A1 (fr) 1992-01-03
WO1992000595A1 (fr) 1992-01-09
EP0538320A1 (fr) 1993-04-28
ATE106600T1 (de) 1994-06-15

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