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GB1554384A - Rare earth metal alloy magnets - Google Patents

Rare earth metal alloy magnets

Info

Publication number
GB1554384A
GB1554384A GB15854/77A GB1585477A GB1554384A GB 1554384 A GB1554384 A GB 1554384A GB 15854/77 A GB15854/77 A GB 15854/77A GB 1585477 A GB1585477 A GB 1585477A GB 1554384 A GB1554384 A GB 1554384A
Authority
GB
United Kingdom
Prior art keywords
rare earth
earth metal
metal alloy
alloy magnets
magnets
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
Application number
GB15854/77A
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.)
MAGNETIC POLYMERS Ltd
Original Assignee
MAGNETIC POLYMERS 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 MAGNETIC POLYMERS Ltd filed Critical MAGNETIC POLYMERS Ltd
Priority to GB15854/77A priority Critical patent/GB1554384A/en
Priority to BE186782A priority patent/BE865965A/en
Priority to FR7811050A priority patent/FR2387500A1/en
Priority to JP4409978A priority patent/JPS53131920A/en
Priority to NL7803979A priority patent/NL7803979A/en
Priority to DE19782816538 priority patent/DE2816538A1/en
Publication of GB1554384A publication Critical patent/GB1554384A/en
Expired 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
    • H01F1/0555—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together
    • H01F1/0557—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together sintered
    • 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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B6/00—Hydrides of metals including fully or partially hydrided metals, alloys or intermetallic compounds ; Compounds containing at least one metal-hydrogen bond, e.g. (GeH3)2S, SiH GeH; Monoborane or diborane; Addition complexes thereof
    • 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
    • H01F1/0553—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 obtained by reduction or by hydrogen decrepitation or embrittlement
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Organic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Powder Metallurgy (AREA)
GB15854/77A 1977-04-15 1977-04-15 Rare earth metal alloy magnets Expired GB1554384A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB15854/77A GB1554384A (en) 1977-04-15 1977-04-15 Rare earth metal alloy magnets
BE186782A BE865965A (en) 1977-04-15 1978-04-13 RARE EARTH ALLOY MAGNETS
FR7811050A FR2387500A1 (en) 1977-04-15 1978-04-14 RARE EARTH ALLOY MAGNETS
JP4409978A JPS53131920A (en) 1977-04-15 1978-04-14 Magnetic member and method of making same
NL7803979A NL7803979A (en) 1977-04-15 1978-04-14 MAGNETS OF RARE EARTH METAL ALLOY.
DE19782816538 DE2816538A1 (en) 1977-04-15 1978-04-17 MAGNETS MADE OF ALLOYS OF RARE EARTH METALS AND PROCESS FOR THEIR PRODUCTION

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB15854/77A GB1554384A (en) 1977-04-15 1977-04-15 Rare earth metal alloy magnets

Publications (1)

Publication Number Publication Date
GB1554384A true GB1554384A (en) 1979-10-17

Family

ID=10066722

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15854/77A Expired GB1554384A (en) 1977-04-15 1977-04-15 Rare earth metal alloy magnets

Country Status (6)

Country Link
JP (1) JPS53131920A (en)
BE (1) BE865965A (en)
DE (1) DE2816538A1 (en)
FR (1) FR2387500A1 (en)
GB (1) GB1554384A (en)
NL (1) NL7803979A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4576640A (en) * 1983-07-02 1986-03-18 Lucas Industries Public Limited Company Hydrogen storage material
GB2201426A (en) * 1987-02-27 1988-09-01 Philips Electronic Associated Improved method for the manufacture of rare earth transition metal alloy magnets
EP0286324A1 (en) * 1987-04-02 1988-10-12 The University Of Birmingham Magnets
US5129964A (en) * 1989-09-06 1992-07-14 Sps Technologies, Inc. Process for making nd-b-fe type magnets utilizing a hydrogen and oxygen treatment
US5228930A (en) * 1989-07-31 1993-07-20 Mitsubishi Materials Corporation Rare earth permanent magnet power, method for producing same and bonded magnet
US5776263A (en) * 1993-12-21 1998-07-07 Matsushita Electric Industrial Co., Ltd. Method for producing alloy powder of the R2T17 system, a method for producing magnetic powder of the of the R2T17NX system, and a high pressure heat-treatment apparatus
US6613213B1 (en) 2000-03-27 2003-09-02 Brookhaven Science Associates, Llc Method for producing electrodes using microscale or nanoscale materials obtained from hydrogendriven metallurgical reactions
US9044834B2 (en) 2013-06-17 2015-06-02 Urban Mining Technology Company Magnet recycling to create Nd—Fe—B magnets with improved or restored magnetic performance
US9336932B1 (en) 2014-08-15 2016-05-10 Urban Mining Company Grain boundary engineering

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61252603A (en) * 1985-05-01 1986-11-10 Daido Steel Co Ltd Manufacture of rare earth magnet
US4893756A (en) * 1988-09-22 1990-01-16 Energy Conversion Devices, Inc. Hydride reactor apparatus for hydrogen comminution of metal hydride hydrogen storage material
US5354040A (en) * 1991-11-28 1994-10-11 Mitsubishi Materials Corporation Apparatus for closed cycle hydrogenation recovery and rehydrogenation
DE19751367C2 (en) * 1997-11-20 2002-06-27 Dresden Ev Inst Festkoerper Process for producing a hard magnetic powder consisting of a samarium-cobalt-based alloy
DE19751366C2 (en) * 1997-11-20 2002-05-16 Dresden Ev Inst Festkoerper Process for the production of a hard magnetic samarium-cobalt base material
DE59801474D1 (en) * 1997-11-20 2001-10-18 Dresden Ev Inst Festkoerper METHOD FOR PRODUCING A MAGNETIC ALLOY POWDER
JP3120172B2 (en) * 1997-12-22 2000-12-25 愛知製鋼株式会社 Equipment for manufacturing rare earth magnet powder

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1004605A (en) * 1961-05-15 1965-09-15 Philips Electronic Associated Improvements in or relating to processes for the manufacture of ductile metals in a finely-divided form
US3615914A (en) * 1968-06-21 1971-10-26 Gen Electric Method of stabilizing permanent magnetic material powders
NL6903931A (en) * 1969-03-14 1970-09-16
NL7005646A (en) * 1970-04-18 1971-10-20

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4576640A (en) * 1983-07-02 1986-03-18 Lucas Industries Public Limited Company Hydrogen storage material
GB2201426A (en) * 1987-02-27 1988-09-01 Philips Electronic Associated Improved method for the manufacture of rare earth transition metal alloy magnets
US4853045A (en) * 1987-02-27 1989-08-01 U.S. Philips Corporation Method for the manufacture of rare earth transition metal alloy magnets
GB2201426B (en) * 1987-02-27 1990-05-30 Philips Electronic Associated Improved method for the manufacture of rare earth transition metal alloy magnets
EP0286324A1 (en) * 1987-04-02 1988-10-12 The University Of Birmingham Magnets
US5338371A (en) * 1989-07-31 1994-08-16 Mitsubishi Metal Corporation Rare earth permanent magnet powder, method for producing same and bonded magnet
US5228930A (en) * 1989-07-31 1993-07-20 Mitsubishi Materials Corporation Rare earth permanent magnet power, method for producing same and bonded magnet
US5286307A (en) * 1989-09-06 1994-02-15 Sps Technologies, Inc. Process for making Nd-B-Fe type magnets utilizing a hydrogen and oxygen treatment
US5129964A (en) * 1989-09-06 1992-07-14 Sps Technologies, Inc. Process for making nd-b-fe type magnets utilizing a hydrogen and oxygen treatment
US5776263A (en) * 1993-12-21 1998-07-07 Matsushita Electric Industrial Co., Ltd. Method for producing alloy powder of the R2T17 system, a method for producing magnetic powder of the of the R2T17NX system, and a high pressure heat-treatment apparatus
US6613213B1 (en) 2000-03-27 2003-09-02 Brookhaven Science Associates, Llc Method for producing electrodes using microscale or nanoscale materials obtained from hydrogendriven metallurgical reactions
US9044834B2 (en) 2013-06-17 2015-06-02 Urban Mining Technology Company Magnet recycling to create Nd—Fe—B magnets with improved or restored magnetic performance
US9067284B2 (en) 2013-06-17 2015-06-30 Urban Mining Technology Company, Llc Magnet recycling to create Nd—Fe—B magnets with improved or restored magnetic performance
US9095940B2 (en) 2013-06-17 2015-08-04 Miha Zakotnik Harvesting apparatus for magnet recycling
US9144865B2 (en) 2013-06-17 2015-09-29 Urban Mining Technology Company Mixing apparatus for magnet recycling
US9336932B1 (en) 2014-08-15 2016-05-10 Urban Mining Company Grain boundary engineering
US10395823B2 (en) 2014-08-15 2019-08-27 Urban Mining Company Grain boundary engineering
US11270841B2 (en) 2014-08-15 2022-03-08 Urban Mining Company Grain boundary engineering

Also Published As

Publication number Publication date
JPS53131920A (en) 1978-11-17
NL7803979A (en) 1978-10-17
FR2387500A1 (en) 1978-11-10
DE2816538A1 (en) 1978-10-26
BE865965A (en) 1978-07-31

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee