GB1413216A - Magnetic material - Google Patents

Magnetic material

Info

Publication number
GB1413216A
GB1413216A GB5106073A GB5106073A GB1413216A GB 1413216 A GB1413216 A GB 1413216A GB 5106073 A GB5106073 A GB 5106073A GB 5106073 A GB5106073 A GB 5106073A GB 1413216 A GB1413216 A GB 1413216A
Authority
GB
United Kingdom
Prior art keywords
particles
nov
mesh
rare earth
per cent
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
GB5106073A
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 GB1413216A publication Critical patent/GB1413216A/en
Expired 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
    • H01F1/06—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 in the form of particles, e.g. powder
    • 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
    • H01F1/0551—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

Abstract

1413216 Sintered cobalt rare earth magnets GENERAL ELECTRIC CO 2 Nov 1973 [2 Nov 1972] 51060/73 Headings C7A and C7D A magnetic material for producing sintered magnets comprises particles of a cobalt-rare earth intermetallic compound and 1-80 wt per cent of a coating of an alloy consisting of 4.2-39.3 wt per cent of Zn or As with at least one of Pb, Cu, Al, Sn, Ni, Co, Au and In. The coated particles are formed by mixing the powders together and heating the mixture to alloy the powders. Alternatively the particles can first be coated with Zn or As and then mixed with the alloying powder. The intermetallic compounds listed are Co 5 Sm, Co 5 Y, Co 5 MM, CosSmPr, Co 5 Sm PrMM, Co 17 Sm 2 , (Co, Fe) 1 7 Sm 2 , with sizes ranging from -325 mesh to -100 + 170 mesh, MoS 2 is included in one example as a lubricant.
GB5106073A 1972-11-02 1973-11-02 Magnetic material Expired GB1413216A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US30300972A 1972-11-02 1972-11-02

Publications (1)

Publication Number Publication Date
GB1413216A true GB1413216A (en) 1975-11-12

Family

ID=23170176

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5106073A Expired GB1413216A (en) 1972-11-02 1973-11-02 Magnetic material

Country Status (8)

Country Link
JP (1) JPS5442344B2 (en)
DE (1) DE2350845A1 (en)
ES (1) ES420150A1 (en)
FR (1) FR2205716B1 (en)
GB (1) GB1413216A (en)
IT (1) IT998855B (en)
NL (1) NL7313860A (en)
SE (1) SE404973B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3102155A1 (en) * 1980-01-24 1981-12-17 Nippon Gakki Seizo K.K., Hamamatsu, Shizuoka METHOD FOR PRODUCING HARD MAGNETIC MATERIALS

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5261123A (en) * 1975-11-14 1977-05-20 Namiki Precision Jewel Co Ltd Permanent magnetic alloy
FR2752641B1 (en) * 1996-08-20 1998-12-04 Rhone Poulenc Chimie PRODUCT WITH MAGNETIC PROPERTIES, PREPARATION METHOD THEREOF AND MAGNET OBTAINED THEREFROM

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3102155A1 (en) * 1980-01-24 1981-12-17 Nippon Gakki Seizo K.K., Hamamatsu, Shizuoka METHOD FOR PRODUCING HARD MAGNETIC MATERIALS

Also Published As

Publication number Publication date
IT998855B (en) 1976-02-20
ES420150A1 (en) 1976-07-01
JPS4995817A (en) 1974-09-11
JPS5442344B2 (en) 1979-12-13
FR2205716A1 (en) 1974-05-31
FR2205716B1 (en) 1978-04-21
DE2350845A1 (en) 1974-05-16
NL7313860A (en) 1974-05-06
SE404973B (en) 1978-11-06

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee