CA1022018A - Annealed air-stable magnetic materials having superior magnetic characteristics and method - Google Patents

Annealed air-stable magnetic materials having superior magnetic characteristics and method

Info

Publication number
CA1022018A
CA1022018A CA197,270A CA197270A CA1022018A CA 1022018 A CA1022018 A CA 1022018A CA 197270 A CA197270 A CA 197270A CA 1022018 A CA1022018 A CA 1022018A
Authority
CA
Canada
Prior art keywords
superior
stable
annealed
air
magnetic materials
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
CA197,270A
Other languages
French (fr)
Other versions
CA197270S (en
Inventor
Richard J. Charles
John G. Smeggil
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
Application granted granted Critical
Publication of CA1022018A publication Critical patent/CA1022018A/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
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/10—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
    • 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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/17—Metallic particles coated with metal
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Powder Metallurgy (AREA)
CA197,270A 1973-06-22 1974-04-10 Annealed air-stable magnetic materials having superior magnetic characteristics and method Expired CA1022018A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00372688A US3856581A (en) 1973-06-22 1973-06-22 Annealing air-stable magnetic materials having superior magnetic characteristics and method

Publications (1)

Publication Number Publication Date
CA1022018A true CA1022018A (en) 1977-12-06

Family

ID=23469222

Family Applications (1)

Application Number Title Priority Date Filing Date
CA197,270A Expired CA1022018A (en) 1973-06-22 1974-04-10 Annealed air-stable magnetic materials having superior magnetic characteristics and method

Country Status (2)

Country Link
US (1) US3856581A (en)
CA (1) CA1022018A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2434058C2 (en) * 1974-07-16 1985-12-19 Basf Ag, 6700 Ludwigshafen Acicular ferromagnetic metal particles consisting primarily of iron and processes for their manufacture
JPS52122213A (en) * 1976-04-05 1977-10-14 Hitachi Ltd Production of ferromagnetic metal powder
US4592790A (en) * 1981-02-20 1986-06-03 Globus Alfred R Method of making particulate uranium for shaped charge liners
DE3683929D1 (en) * 1985-06-10 1992-03-26 Takeuchi Press RESIN-BASED MAGNETIC COMPOSITION AND METHOD FOR PRODUCING MAGNETIC CASTINGS THEREOF.
US4882206A (en) * 1988-06-22 1989-11-21 Georgia Tech Research Corporation Chemical vapor deposition of group IIIB metals
US4888204A (en) * 1988-09-12 1989-12-19 Hughes Aircraft Company Photochemical deposition of high purity gold films

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2933415A (en) * 1954-12-23 1960-04-19 Ohio Commw Eng Co Nickel coated iron particles
US3219482A (en) * 1962-06-25 1965-11-23 Union Carbide Corp Method of gas plating adherent coatings on silicon
GB1052647A (en) * 1964-03-23
NL130686C (en) * 1964-05-25
US3479219A (en) * 1966-01-17 1969-11-18 Ibm Method of fabricating magnetic recording media
US3511683A (en) * 1967-06-20 1970-05-12 Mobil Oil Corp Method of electrolessly depositing metals on particles
NL154354B (en) * 1967-12-21 1977-08-15 Philips Nv PREPARATION MATERIAL FOR THE MANUFACTURE OF A PERMANENT MAGNET, PROCEDURE FOR MANUFACTURE OF THIS PREPARATION, AND PERMANENT MAGNET CONSTRUCTED FROM THE PRIMARY MATERIAL.
US3615914A (en) * 1968-06-21 1971-10-26 Gen Electric Method of stabilizing permanent magnetic material powders
US3632401A (en) * 1968-11-08 1972-01-04 Ugine Kuhlmann Process for obtaining granular solids by the decomposition of gaseous reactants
US3684593A (en) * 1970-11-02 1972-08-15 Gen Electric Heat-aged sintered cobalt-rare earth intermetallic product and process

Also Published As

Publication number Publication date
US3856581A (en) 1974-12-24

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