GB996913A - Magnetic materials - Google Patents

Magnetic materials

Info

Publication number
GB996913A
GB996913A GB35614/61A GB3561461A GB996913A GB 996913 A GB996913 A GB 996913A GB 35614/61 A GB35614/61 A GB 35614/61A GB 3561461 A GB3561461 A GB 3561461A GB 996913 A GB996913 A GB 996913A
Authority
GB
United Kingdom
Prior art keywords
particles
cobalt
iron
alloy
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
GB35614/61A
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.)
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 GB996913A publication Critical patent/GB996913A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B22F1/16—Metallic particles coated with a non-metal
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
    • C04B35/2666—Other ferrites containing nickel, copper or cobalt
    • 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
    • H01F1/061—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 with a protective layer
    • 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
    • H01F1/09—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 mixtures of metallic and non-metallic particles; metallic particles having oxide skin
    • 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
    • H01F1/12—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 soft-magnetic materials
    • H01F1/14—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 soft-magnetic materials metals or alloys
    • H01F1/16—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 soft-magnetic materials metals or alloys in the form of sheets

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
GB35614/61A 1960-11-17 1961-10-03 Magnetic materials Expired GB996913A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US69810A US3156650A (en) 1960-11-17 1960-11-17 Oxide coated iron-cobalt alloy magnetic material

Publications (1)

Publication Number Publication Date
GB996913A true GB996913A (en) 1965-06-30

Family

ID=22091354

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35614/61A Expired GB996913A (en) 1960-11-17 1961-10-03 Magnetic materials

Country Status (4)

Country Link
US (1) US3156650A (OSRAM)
DE (1) DE1414802A1 (OSRAM)
GB (1) GB996913A (OSRAM)
SE (1) SE219411C1 (OSRAM)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3480553A (en) * 1967-02-20 1969-11-25 Gen Electric Oxidation resistant high energy magnetic material
JPS5975608A (ja) * 1982-10-25 1984-04-28 Fuji Photo Film Co Ltd 強磁性粉末及びその製造方法
CN115475935B (zh) * 2022-10-27 2023-08-22 广东金泓新材料有限公司 一种铁基软磁复合粉末的制备方法及铁基软磁复合粉末

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1651958A (en) * 1927-01-03 1927-12-06 Bell Telephone Labor Inc Insulation of finely-divided magnetic material
US2626895A (en) * 1944-11-17 1953-01-27 Fansteel Metallurgical Corp Electrolytic production of iron
BE500682A (OSRAM) * 1950-02-18
US2974104A (en) * 1955-04-08 1961-03-07 Gen Electric High-energy magnetic material
FR1168240A (fr) * 1955-12-22 1958-12-05 Thomson Houston Comp Francaise Nouveau matériau magnétique et sa préparation
US2824052A (en) * 1956-01-03 1958-02-18 Diamond Alkali Co Process of preparing finely divided iron including electrolysis, washing, wet grinding, and flotation of impurities

Also Published As

Publication number Publication date
DE1414802A1 (de) 1968-11-07
DE1414802B2 (OSRAM) 1970-07-16
SE219411C1 (OSRAM) 1968-03-12
US3156650A (en) 1964-11-10

Similar Documents

Publication Publication Date Title
JPS55149137A (en) High performance high coercive force powder and its manufacture
JPS53113754A (en) Preparation of ferromagnetic powder
SE7601441L (sv) Forfarande for utvinning av koppar
GB996913A (en) Magnetic materials
GB1531387A (en) Preparation of iron oxide black pigments
JPS525496A (en) Ferromagnetic grit manufacturing process
DE3777046D1 (de) Magnetische eisenoxidpigmente und verfahren zu ihrer herstellung.
GB874451A (en) Improvements in or relating to manganese ferrites
GB1432808A (en) Solid solutions of iron oxide and bivalent metals
GB759245A (en) Improvements in or relating to methods of manufacturing non-metallic magnetic cores having a substantially rectangular hysteresis loop
JPS56127710A (en) Production of acicular magnetic metal particle
JPS5583209A (en) Ferromagnetic powder and preparing the same
JPS6415911A (en) Manufacture of oxide perpendicularly magnetizable film
GB675260A (en) Improvements in or relating to method of making magnetic material, the magnetic material resulting from said method, and a magnetic record tape or sheet employing said magnetic material
JPS57124404A (en) Manufacture of magnetic iron oxide powder
Lundgren et al. Structure-function relationships of Thiobacillus relative to ferrous iron and sulfide oxidations
GB1520756A (en) Manufacture of gamma-iron (iii) oxide
JPS57198607A (en) Manufacture of magnetic iron oxide particle powder for magnetic recording material
JPS56203A (en) Manufacture of alloy magnetic powder composed primarily of metallic iron or iron
JPS5789401A (en) Preparation of acicular magnetic metallic particle
DE3683531D1 (de) Verfahren zur herstellung isometrischer kobalt- und titanhaltiger magnetischer eisenoxide.
GB986473A (en) Manufacture of magnetic recording media
KR860002422A (ko) 고-보자성 등축 산화철의 제조방법
Zecevic et al. Oxygen Reduction on Iron. I. Processes in the Near Neutral Solutions
JPS57197809A (en) Manufacture of high coercive force co containing granular magnetite particle powder with magnetic stability