GB1307296A - Permanent magnets - Google Patents

Permanent magnets

Info

Publication number
GB1307296A
GB1307296A GB2256570A GB2256570A GB1307296A GB 1307296 A GB1307296 A GB 1307296A GB 2256570 A GB2256570 A GB 2256570A GB 2256570 A GB2256570 A GB 2256570A GB 1307296 A GB1307296 A GB 1307296A
Authority
GB
United Kingdom
Prior art keywords
sintering
sintered
smco
compounds
cooling
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
GB2256570A
Other languages
English (en)
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1307296A publication Critical patent/GB1307296A/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
    • 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
    • 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)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
GB2256570A 1969-05-14 1970-05-11 Permanent magnets Expired GB1307296A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6907499A NL6907499A (fr) 1969-05-14 1969-05-14

Publications (1)

Publication Number Publication Date
GB1307296A true GB1307296A (en) 1973-02-14

Family

ID=19806960

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2256570A Expired GB1307296A (en) 1969-05-14 1970-05-11 Permanent magnets

Country Status (11)

Country Link
US (1) US3701695A (fr)
AT (1) AT301890B (fr)
AU (1) AU1490470A (fr)
BE (1) BE750371A (fr)
CA (1) CA932247A (fr)
CH (1) CH534948A (fr)
DE (1) DE2020370A1 (fr)
FR (1) FR2047760A5 (fr)
GB (1) GB1307296A (fr)
NL (1) NL6907499A (fr)
SE (1) SE349420B (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3655463A (en) * 1970-04-30 1972-04-11 Gen Electric Sintered cobalt-rare earth intermetallic process using solid sintering additive
DE2215301B2 (de) * 1971-04-06 1976-07-08 N.V. Philips' Gloeilampenfabrieken, Eindhoven (Niederlande) Verfahren zur herstellung eines koerpers mit anisotropen dauermagnetischen eigenschaften
CH577561A5 (fr) * 1971-06-15 1976-07-15 Bbc Brown Boveri & Cie
US3970484A (en) * 1975-01-20 1976-07-20 Hitachi Magnetics Corporation Sintering methods for cobalt-rare earth alloys
CH616777A5 (fr) * 1975-09-23 1980-04-15 Bbc Brown Boveri & Cie
US4210471A (en) * 1976-02-10 1980-07-01 Tdk Electronics, Co., Ltd. Permanent magnet material and process for producing the same
US4213803A (en) * 1976-08-31 1980-07-22 Tdk Electronics Company Limited R2 Co17 Rare type-earth-cobalt, permanent magnet material and process for producing the same
US4776902A (en) * 1984-03-30 1988-10-11 Union Oil Company Of California Method for making rare earth-containing magnets
US4891078A (en) * 1984-03-30 1990-01-02 Union Oil Company Of California Rare earth-containing magnets
US5382303A (en) * 1992-04-13 1995-01-17 Sps Technologies, Inc. Permanent magnets and methods for their fabrication

Also Published As

Publication number Publication date
DE2020370A1 (de) 1970-11-19
FR2047760A5 (fr) 1971-03-12
CA932247A (en) 1973-08-21
AT301890B (de) 1972-09-25
NL6907499A (fr) 1970-11-17
SE349420B (fr) 1972-09-25
BE750371A (fr) 1970-11-13
CH534948A (de) 1973-03-15
US3701695A (en) 1972-10-31
AU1490470A (en) 1971-11-18

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee