FR2363873A1 - Aimant permanent a composition nouvelle et procede pour le fabriquer - Google Patents

Aimant permanent a composition nouvelle et procede pour le fabriquer

Info

Publication number
FR2363873A1
FR2363873A1 FR7722245A FR7722245A FR2363873A1 FR 2363873 A1 FR2363873 A1 FR 2363873A1 FR 7722245 A FR7722245 A FR 7722245A FR 7722245 A FR7722245 A FR 7722245A FR 2363873 A1 FR2363873 A1 FR 2363873A1
Authority
FR
France
Prior art keywords
new composition
manufacturing
permanent magnet
curve
iron
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
Application number
FR7722245A
Other languages
English (en)
Other versions
FR2363873B1 (fr
Inventor
Tetsuhito Yoneyama
Shiro Tomizawa
Tetsuo Hori
Teruhiko Ojima
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.)
TDK Corp
Original Assignee
TDK Corp
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
Priority claimed from JP10391976A external-priority patent/JPS5329223A/ja
Priority claimed from JP15946576A external-priority patent/JPS5382619A/ja
Application filed by TDK Corp filed Critical TDK Corp
Publication of FR2363873A1 publication Critical patent/FR2363873A1/fr
Application granted granted Critical
Publication of FR2363873B1 publication Critical patent/FR2363873B1/fr
Granted 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/07—Alloys based on nickel or cobalt based on cobalt

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

L'invention a pour objet une nouvelle composition pour la réalisation d'aimants permanents. On ajoute un élément métallique supplémentaire tel que le niobium, le vanadium, le tantale en quantité allant de 0,2 à 4 % ou du zirconium en quantité allant de 0,2 à 5 % en poids. Ces éléments empêchent la perte de la force coercitive due à la présence de fer comme le montre la courbe 3 par rapport à la courbe 4 d'un aimant classique. L'invention est applicable aux aimants à base d'alliage ternaire ou quaternaire contenant une terre rare, du cobalt, du cuivre, du fer.
FR7722245A 1976-08-31 1977-07-20 Aimant permanent a composition nouvelle et procede pour le fabriquer Granted FR2363873A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10391976A JPS5329223A (en) 1976-08-31 1976-08-31 Permanent magnet material
JP15946576A JPS5382619A (en) 1976-12-28 1976-12-28 Permanent magnet material

Publications (2)

Publication Number Publication Date
FR2363873A1 true FR2363873A1 (fr) 1978-03-31
FR2363873B1 FR2363873B1 (fr) 1981-12-04

Family

ID=26444496

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7722245A Granted FR2363873A1 (fr) 1976-08-31 1977-07-20 Aimant permanent a composition nouvelle et procede pour le fabriquer

Country Status (5)

Country Link
US (1) US4213803A (fr)
CH (1) CH638566A5 (fr)
FR (1) FR2363873A1 (fr)
GB (2) GB1557749A (fr)
NL (1) NL183592C (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH603802A5 (fr) * 1975-12-02 1978-08-31 Bbc Brown Boveri & Cie
JPS52155124A (en) * 1976-06-18 1977-12-23 Hitachi Metals Ltd Permanent magnetic alloy
WO1980002297A1 (fr) * 1979-04-18 1980-10-30 Namiki Precision Jewel Co Ltd Procede de production d'un alliage a aimantation permanente
JPS56166357A (en) * 1980-05-23 1981-12-21 Shin Etsu Chem Co Ltd Permanent magnet alloy containing rare earth metal
JPS57100705A (en) * 1980-12-16 1982-06-23 Seiko Epson Corp Permanent magnet
IT1148133B (it) * 1982-03-11 1986-11-26 Selenia Ind Elettroniche Granati ferrimagnetici sintetici al calcio-vanadio con migliorate caratteristiche d'isteresi in temperatura
GB8403751D0 (en) * 1984-02-13 1984-03-14 Sherritt Gordon Mines Ltd Producing sm2 co17 alloy
US5084115A (en) * 1989-09-14 1992-01-28 Ford Motor Company Cobalt-based magnet free of rare earths
IT1245838B (it) * 1990-11-15 1994-10-24 Getters Spa Motore elettrico senza spazzole e rotore relativo.
US5382303A (en) * 1992-04-13 1995-01-17 Sps Technologies, Inc. Permanent magnets and methods for their fabrication
US6451132B1 (en) * 1999-01-06 2002-09-17 University Of Dayton High temperature permanent magnets
US6302939B1 (en) 1999-02-01 2001-10-16 Magnequench International, Inc. Rare earth permanent magnet and method for making same
JP5259351B2 (ja) 2008-11-19 2013-08-07 株式会社東芝 永久磁石とそれを用いた永久磁石モータおよび発電機

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6608335A (fr) * 1966-06-16 1967-12-18
NL6907499A (fr) * 1969-05-14 1970-11-17
US3695945A (en) * 1970-04-30 1972-10-03 Gen Electric Method of producing a sintered cobalt-rare earth intermetallic product
IT963874B (it) * 1972-08-10 1974-01-21 Getters Spa Dispositivo getter perfezionato contenente materiale non evapora bile
IT1004320B (it) * 1973-02-09 1976-07-10 Matsushita Electric Ind Co Ltd Materiale magnetico duro
US3839101A (en) * 1973-05-24 1974-10-01 Gen Electric Controlled cooling of cobalt-rare earth magnetic alloys
US3982971A (en) * 1974-02-21 1976-09-28 Shin-Etsu Chemical Co., Ltd Rare earth-containing permanent magnets
US3970484A (en) * 1975-01-20 1976-07-20 Hitachi Magnetics Corporation Sintering methods for cobalt-rare earth alloys
JPS5211121A (en) * 1975-07-18 1977-01-27 Fujitsu Ltd Magnet material
CH616777A5 (fr) * 1975-09-23 1980-04-15 Bbc Brown Boveri & Cie
US4075437A (en) * 1976-07-16 1978-02-21 Bell Telephone Laboratories, Incorporated Composition, processing and devices including magnetic alloy

Also Published As

Publication number Publication date
GB1557749A (en) 1979-12-12
FR2363873B1 (fr) 1981-12-04
GB1557748A (en) 1979-12-12
US4213803A (en) 1980-07-22
CH638566A5 (de) 1983-09-30
NL7709529A (nl) 1978-03-02
NL183592B (nl) 1988-07-01
NL183592C (nl) 1988-12-01

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Legal Events

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