DE2215827C3 - Verfahren zur Stabilisierung der magnetischen Eigenschaften eines gesinterten Dauermagneten auf der Basis von Kobalt und Seltenem Erdmetall - Google Patents

Verfahren zur Stabilisierung der magnetischen Eigenschaften eines gesinterten Dauermagneten auf der Basis von Kobalt und Seltenem Erdmetall

Info

Publication number
DE2215827C3
DE2215827C3 DE2215827A DE2215827A DE2215827C3 DE 2215827 C3 DE2215827 C3 DE 2215827C3 DE 2215827 A DE2215827 A DE 2215827A DE 2215827 A DE2215827 A DE 2215827A DE 2215827 C3 DE2215827 C3 DE 2215827C3
Authority
DE
Germany
Prior art keywords
cobalt
rare earth
sintered
earth metal
permanent magnet
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
DE2215827A
Other languages
German (de)
English (en)
Other versions
DE2215827B2 (de
DE2215827A1 (de
Inventor
Donald Luther Elnora N.Y. Martin
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of DE2215827A1 publication Critical patent/DE2215827A1/de
Publication of DE2215827B2 publication Critical patent/DE2215827B2/de
Application granted granted Critical
Publication of DE2215827C3 publication Critical patent/DE2215827C3/de
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
    • 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)
  • 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)
  • Powder Metallurgy (AREA)
DE2215827A 1971-04-01 1972-03-30 Verfahren zur Stabilisierung der magnetischen Eigenschaften eines gesinterten Dauermagneten auf der Basis von Kobalt und Seltenem Erdmetall Expired DE2215827C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13010871A 1971-04-01 1971-04-01

Publications (3)

Publication Number Publication Date
DE2215827A1 DE2215827A1 (de) 1972-12-07
DE2215827B2 DE2215827B2 (de) 1980-10-16
DE2215827C3 true DE2215827C3 (de) 1988-02-11

Family

ID=22443087

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2215827A Expired DE2215827C3 (de) 1971-04-01 1972-03-30 Verfahren zur Stabilisierung der magnetischen Eigenschaften eines gesinterten Dauermagneten auf der Basis von Kobalt und Seltenem Erdmetall

Country Status (7)

Country Link
US (1) US3755007A (enExample)
JP (1) JPS5642122B1 (enExample)
DE (1) DE2215827C3 (enExample)
FR (1) FR2132313B1 (enExample)
GB (1) GB1369546A (enExample)
IT (1) IT949981B (enExample)
NL (1) NL176614C (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2182635B1 (enExample) * 1972-05-02 1978-03-03 Sermag
JPS5113878B2 (enExample) * 1972-07-12 1976-05-04
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
US3901742A (en) * 1974-04-11 1975-08-26 Gen Electric Removal of lubricants and binders from sinterable powder components
US3970485A (en) * 1975-01-20 1976-07-20 Hitachi Magnetics Corporation Binder and lubricant removal from cobalt-rare earth alloys
US3970484A (en) * 1975-01-20 1976-07-20 Hitachi Magnetics Corporation Sintering methods for cobalt-rare earth alloys
JPS5975127U (ja) * 1982-11-11 1984-05-22 カルツク光学株式会社 眼鏡ケ−ス

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1677139A (en) * 1928-07-17 Process for increasing the permeability of silicon steel
NL6608335A (enExample) * 1966-06-16 1967-12-18
NL6700998A (enExample) * 1967-01-21 1968-07-22
US3424578A (en) * 1967-06-05 1969-01-28 Us Air Force Method of producing permanent magnets of rare earth metals containing co,or mixtures of co,fe and mn
US3560200A (en) * 1968-04-01 1971-02-02 Bell Telephone Labor Inc Permanent magnetic materials
BE728414A (enExample) * 1968-04-01 1969-07-16
DE1944432C3 (de) * 1969-09-02 1980-03-20 Strnat, Karl, Prof. Dr., La Jolla, Calif. (V.St.A.) Dauermagnet
US3655463A (en) * 1970-04-30 1972-04-11 Gen Electric Sintered cobalt-rare earth intermetallic process using solid sintering additive
GB1347764A (en) * 1970-04-30 1974-02-27 Gen Electric Heat-aged sintered cobalt-rare earth intermetallic product and process
US3682714A (en) * 1970-08-24 1972-08-08 Gen Electric Sintered cobalt-rare earth intermetallic product and permanent magnets produced therefrom

Also Published As

Publication number Publication date
NL7204488A (enExample) 1972-10-03
FR2132313B1 (enExample) 1976-08-06
DE2215827B2 (de) 1980-10-16
FR2132313A1 (enExample) 1972-11-17
GB1369546A (en) 1974-10-09
IT949981B (it) 1973-06-11
NL176614C (nl) 1985-05-01
US3755007A (en) 1973-08-28
DE2215827A1 (de) 1972-12-07
JPS5642122B1 (enExample) 1981-10-02
NL176614B (nl) 1984-12-03

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Legal Events

Date Code Title Description
OD Request for examination
8263 Opposition against grant of a patent
C3 Grant after two publication steps (3rd publication)
8328 Change in the person/name/address of the agent

Free format text: SCHUELER, H., DIPL.-CHEM. DR.RER.NAT., PAT.-ANW., 6000 FRANKFURT