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FR2707192B1 - Process for the preparation of magnetic powders of the rare earth-cobalt type containing fluorine and corresponding densified permanent magnets. - Google Patents

Process for the preparation of magnetic powders of the rare earth-cobalt type containing fluorine and corresponding densified permanent magnets.

Info

Publication number
FR2707192B1
FR2707192B1 FR9308644A FR9308644A FR2707192B1 FR 2707192 B1 FR2707192 B1 FR 2707192B1 FR 9308644 A FR9308644 A FR 9308644A FR 9308644 A FR9308644 A FR 9308644A FR 2707192 B1 FR2707192 B1 FR 2707192B1
Authority
FR
France
Prior art keywords
preparation
rare earth
permanent magnets
containing fluorine
type containing
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
FR9308644A
Other languages
French (fr)
Other versions
FR2707192A1 (en
Inventor
Gabriel Armand
Lemaire Henri
Vial Fernand
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.)
Aimants Ugimac SA
Original Assignee
Aimants Ugimac SA
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 Aimants Ugimac SA filed Critical Aimants Ugimac SA
Priority to FR9308644A priority Critical patent/FR2707192B1/en
Priority to DE69402551T priority patent/DE69402551T2/en
Priority to PCT/FR1994/000838 priority patent/WO1995002252A1/en
Priority to EP94921696A priority patent/EP0707739B1/en
Publication of FR2707192A1 publication Critical patent/FR2707192A1/en
Application granted granted Critical
Publication of FR2707192B1 publication Critical patent/FR2707192B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • 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
    • H01F1/0551—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H01F1/0552—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 in the form of particles, e.g. rapid quenched powders or ribbon flakes with a protective layer
    • 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)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Power Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
FR9308644A 1993-07-08 1993-07-08 Process for the preparation of magnetic powders of the rare earth-cobalt type containing fluorine and corresponding densified permanent magnets. Expired - Fee Related FR2707192B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR9308644A FR2707192B1 (en) 1993-07-08 1993-07-08 Process for the preparation of magnetic powders of the rare earth-cobalt type containing fluorine and corresponding densified permanent magnets.
DE69402551T DE69402551T2 (en) 1993-07-08 1994-07-07 A RARE EARTH-COBALT TYPE OF FLUORINE-CONTAINING MAGNETIC POWDER AND DENSATED PERMANENT MAGNETS THEREOF AND THEIR PRODUCTION PROCESS
PCT/FR1994/000838 WO1995002252A1 (en) 1993-07-08 1994-07-07 Process for the preparation of cobalt/rare earth type magnetic powders containing fluorine and corresponding densified permanent magnets
EP94921696A EP0707739B1 (en) 1993-07-08 1994-07-07 Cobalt/rare earth type magnetic powders containing fluorine and corresponding densified permanent magnets and process for the preparation thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9308644A FR2707192B1 (en) 1993-07-08 1993-07-08 Process for the preparation of magnetic powders of the rare earth-cobalt type containing fluorine and corresponding densified permanent magnets.

Publications (2)

Publication Number Publication Date
FR2707192A1 FR2707192A1 (en) 1995-01-13
FR2707192B1 true FR2707192B1 (en) 1995-08-11

Family

ID=9449236

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9308644A Expired - Fee Related FR2707192B1 (en) 1993-07-08 1993-07-08 Process for the preparation of magnetic powders of the rare earth-cobalt type containing fluorine and corresponding densified permanent magnets.

Country Status (4)

Country Link
EP (1) EP0707739B1 (en)
DE (1) DE69402551T2 (en)
FR (1) FR2707192B1 (en)
WO (1) WO1995002252A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007032406B3 (en) * 2007-07-10 2008-10-23 Gkss-Forschungszentrum Geesthacht Gmbh Production of alloys based on titanium aluminides

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6803121A (en) * 1968-03-05 1969-09-09
JPS6057601A (en) * 1983-09-08 1985-04-03 Sumitomo Special Metals Co Ltd Material of permanent magnet
JPS60173804A (en) * 1984-02-17 1985-09-07 Seiko Instr & Electronics Ltd Manufacture of rare earth cobalt magnet
JPH02288306A (en) * 1989-04-28 1990-11-28 Seiko Electronic Components Ltd Manufacture of rare earth permanent magnet

Also Published As

Publication number Publication date
FR2707192A1 (en) 1995-01-13
EP0707739A1 (en) 1996-04-24
DE69402551T2 (en) 1997-09-11
EP0707739B1 (en) 1997-04-09
DE69402551D1 (en) 1997-05-15
WO1995002252A1 (en) 1995-01-19

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Legal Events

Date Code Title Description
ST Notification of lapse