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GB1187853A - Improvements relating to Permanent Magnets. - Google Patents

Improvements relating to Permanent Magnets.

Info

Publication number
GB1187853A
GB1187853A GB27915/67A GB2791567A GB1187853A GB 1187853 A GB1187853 A GB 1187853A GB 27915/67 A GB27915/67 A GB 27915/67A GB 2791567 A GB2791567 A GB 2791567A GB 1187853 A GB1187853 A GB 1187853A
Authority
GB
United Kingdom
Prior art keywords
combination
june
alloy
cooling
rare earth
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
GB27915/67A
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 GB1187853A publication Critical patent/GB1187853A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032Magnets 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
    • H01F1/04Magnets 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
    • H01F1/047Alloys characterised by their composition
    • H01F1/053Alloys characterised by their composition containing rare earth metals
    • H01F1/055Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/0555Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together
    • H01F1/0557Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together sintered
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C19/00Alloys based on nickel or cobalt
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C28/00Alloys based on a metal not provided for in groups C22C5/00 - C22C27/00
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C9/00Alloys based on copper

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)

Abstract

1,187,853. Cobalt alloys. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. June 16, 1967 [June 16, 1966], No.27915/67. Heading C7A. [Also in Divisions C1 and H1] A magnetic Co alloy has the formula M 5 R where M is Co or a combination of Co with one or more of Fe, Cu, Ni, and R is La, Th, a combination of Th with one or more rare earth metals, or a combination of at least 3 rare earth metals, and has a hexagonal crystal structure and a particle size of less than 100 microns. The alloy is made by melting the components M and R, cooling, annealing in a non-oxidizing atmosphere, e. g. at 900-1100‹ C. in Ar, cooling to room temperature, e. g. by quenching pulversing, and optionally baking. Alloys expemplified are: Co 5 La Co 5 Th Co 4 Cu La Co 3 Fe 2 Th Co 5 Th o . 2 Yo.8 Co 5 La 0À33 Sm 0À33 Th 0À34 Co 5 La 0À5 Ce 0À25 Sm 0À25 It is also stated that if M is Co + Fe, when R is La the maximum Fe content is 5 at. per cent, and when R is Th it is 60 at. per cent.
GB27915/67A 1966-06-16 1967-06-16 Improvements relating to Permanent Magnets. Expired GB1187853A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6608335A NL6608335A (en) 1966-06-16 1966-06-16

Publications (1)

Publication Number Publication Date
GB1187853A true GB1187853A (en) 1970-04-15

Family

ID=19796894

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27915/67A Expired GB1187853A (en) 1966-06-16 1967-06-16 Improvements relating to Permanent Magnets.

Country Status (11)

Country Link
US (1) US3546030A (en)
AT (1) AT286657B (en)
BE (1) BE700002A (en)
CH (1) CH499857A (en)
DE (1) DE1558550B2 (en)
DK (1) DK117970B (en)
ES (1) ES341762A1 (en)
GB (1) GB1187853A (en)
NL (1) NL6608335A (en)
NO (1) NO122852B (en)
SE (1) SE332866B (en)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3839102A (en) * 1967-11-15 1974-10-01 Matsushita Electric Ind Co Ltd Permanent magnet
US3790414A (en) * 1967-11-15 1974-02-05 Matsushita Electric Ind Co Ltd As-CAST, RARE-EARTH-Co-Cu PERMANENT MAGNET MATERIAL
US3664892A (en) * 1968-01-31 1972-05-23 Gen Electric Permanent magnet material powders having superior magnetic characteristics
NL6906305A (en) * 1969-01-24 1970-10-27
US3625779A (en) * 1969-08-21 1971-12-07 Gen Electric Reduction-fusion process for the production of rare earth intermetallic compounds
US3956031A (en) * 1969-12-24 1976-05-11 Texas Instruments Incorporated Magnetic materials and the formation thereof
US3655464A (en) * 1970-04-30 1972-04-11 Gen Electric Process of preparing a liquid sintered cobalt-rare earth intermetallic product
US3919004A (en) * 1970-04-30 1975-11-11 Gen Electric Liquid sintered cobalt-rare earth intermetallic product
US3655463A (en) * 1970-04-30 1972-04-11 Gen Electric Sintered cobalt-rare earth intermetallic process using solid sintering additive
US3652343A (en) * 1970-09-14 1972-03-28 Gen Electric Permanent magnet material powders having superior magnetic characteristics
US3755007A (en) * 1971-04-01 1973-08-28 Gen Electric Stabilized permanent magnet comprising a sintered and quenched body of compacted cobalt-rare earth particles
US3905839A (en) * 1971-12-17 1975-09-16 Gen Electric Liquid sintered cobalt-rare earth intermetallic product
US3919003A (en) * 1971-12-17 1975-11-11 Gen Electric Sintered cobalt-rare earth intermetallic product
US4003767A (en) * 1971-12-27 1977-01-18 Bbc Brown Boveri & Company Limited Procedure for the production of permanent magnetic sinter bodies using a ternary cobalt-lanthanoid compound
US3844850A (en) * 1972-04-17 1974-10-29 Gen Electric Large grain cobalt-samarium intermetallic permanent magnet material and process
US3919002A (en) * 1972-06-15 1975-11-11 Gen Electric Sintered cobalt-rare earth intermetallic product
US3856579A (en) * 1972-12-04 1974-12-24 Battelle Development Corp Sputtered magnetic materials comprising rare-earth metals and method of preparation
FR2217430B1 (en) * 1973-02-09 1976-10-08 Matsushita Electric Ind Co Ltd
JPS5724058B2 (en) * 1973-11-12 1982-05-21
US4075042A (en) * 1973-11-16 1978-02-21 Raytheon Company Samarium-cobalt magnet with grain growth inhibited SmCo5 crystals
FR2295130A1 (en) * 1974-08-27 1976-07-16 Aimants Ugimag Sa COMPOSITION FOR PERMANENT MAGNETS OF THE "RARE-EARTH - TRANSITION METALS" FAMILY AND METHOD OF MANUFACTURING SUCH A MAGNET
JPS52115000A (en) * 1976-03-22 1977-09-27 Tdk Corp Material of permanent magnet
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
US4370296A (en) * 1978-03-21 1983-01-25 Fdx Associates, L.P. Toroidal fusion reactor having ohmic heating coil substantially adjacent toroidal fusion region
US4370295A (en) * 1978-03-21 1983-01-25 Fdx Associates, L.P. Fusion-fission power generating device having fissile-fertile material within the region of the toroidal field coils generating means
JPS601940B2 (en) * 1980-08-11 1985-01-18 富士通株式会社 Temperature sensing element material
DE3040342C2 (en) * 1980-10-25 1982-08-12 Th. Goldschmidt Ag, 4300 Essen Alloy suitable for making a permanent magnet
JPS57100705A (en) * 1980-12-16 1982-06-23 Seiko Epson Corp Permanent magnet
US5382303A (en) * 1992-04-13 1995-01-17 Sps Technologies, Inc. Permanent magnets and methods for their fabrication

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2813789A (en) * 1952-04-08 1957-11-19 Glaser Louis Permanent magnet alloys
US3102002A (en) * 1960-03-25 1963-08-27 Univ Pittsburgh Ferromagnetic materials prepared from lanthanons and transition metals
US3326637A (en) * 1963-12-27 1967-06-20 Ibm Ferromagnetic intermetallic compounds and method of preparation
US3342591A (en) * 1964-08-31 1967-09-19 Ibm Ferromagnetic compounds and method of preparation
US3421889A (en) * 1966-01-13 1969-01-14 Us Air Force Magnetic rare earth-cobalt alloys
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

Also Published As

Publication number Publication date
DE1558550A1 (en) 1970-04-09
DK117970B (en) 1970-06-22
US3546030A (en) 1970-12-08
BE700002A (en) 1967-12-15
NL6608335A (en) 1967-12-18
ES341762A1 (en) 1968-10-16
NO122852B (en) 1971-08-23
DE1558550B2 (en) 1977-06-30
CH499857A (en) 1970-11-30
AT286657B (en) 1970-12-28
SE332866B (en) 1971-02-22

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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