FR2106019A5 - Anisotropic non-aging permanent magnets - from sintered powdered cobalt and rare earth cpds - Google Patents

Anisotropic non-aging permanent magnets - from sintered powdered cobalt and rare earth cpds

Info

Publication number
FR2106019A5
FR2106019A5 FR7130828A FR7130828A FR2106019A5 FR 2106019 A5 FR2106019 A5 FR 2106019A5 FR 7130828 A FR7130828 A FR 7130828A FR 7130828 A FR7130828 A FR 7130828A FR 2106019 A5 FR2106019 A5 FR 2106019A5
Authority
FR
France
Prior art keywords
cpds
rare earth
permanent magnets
sintered powdered
powdered cobalt
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
FR7130828A
Other languages
French (fr)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 NL7012667A external-priority patent/NL7012667A/xx
Priority claimed from NL7016725A external-priority patent/NL7016725A/en
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR2106019A5 publication Critical patent/FR2106019A5/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/0433—Nickel- or cobalt-based alloys
    • C22C1/0441—Alloys based on intermetallic compounds of the type rare earth - Co, Ni
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Power Engineering (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

Powder consisting of one or more cpds. of M and R with hexagonal crystal structure (M is Co opt. combined with Fe, Ni and/or Cu and R is rare earth(s), Y or Th, M5R units) is oriented in a magnetic field, compressed and sintered at temp. above critical sintering temp. for compsn. Pref. M = Co, R = Sm, and sintering temp.
FR7130828A 1970-08-27 1971-08-25 Anisotropic non-aging permanent magnets - from sintered powdered cobalt and rare earth cpds Expired FR2106019A5 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL7012667A NL7012667A (en) 1970-08-27 1970-08-27
NL7019617 1970-10-24
NL7016725A NL7016725A (en) 1970-11-14 1970-11-14 Anisotropic non-aging permanent magnets - from sintered powdered cobalt and rare earth cpds

Publications (1)

Publication Number Publication Date
FR2106019A5 true FR2106019A5 (en) 1972-04-28

Family

ID=27351596

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7130828A Expired FR2106019A5 (en) 1970-08-27 1971-08-25 Anisotropic non-aging permanent magnets - from sintered powdered cobalt and rare earth cpds

Country Status (1)

Country Link
FR (1) FR2106019A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2329759A2 (en) * 1975-09-08 1977-05-27 Bbc Brown Boveri & Cie MATERIAL WITH PERMANENT MAGNETATION, ESSENTIALLY CONTAINING A CERIC MISCHMETAL AND COBALT AND THE PROCESS FOR ITS REALIZATION
WO2022258900A1 (en) 2021-06-08 2022-12-15 Psa Automobiles Sa Method for controlling the speed of a vehicle travelling on a road based on a target vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2329759A2 (en) * 1975-09-08 1977-05-27 Bbc Brown Boveri & Cie MATERIAL WITH PERMANENT MAGNETATION, ESSENTIALLY CONTAINING A CERIC MISCHMETAL AND COBALT AND THE PROCESS FOR ITS REALIZATION
WO2022258900A1 (en) 2021-06-08 2022-12-15 Psa Automobiles Sa Method for controlling the speed of a vehicle travelling on a road based on a target vehicle

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Legal Events

Date Code Title Description
ST Notification of lapse