IL39014A0 - Cobalt powders,their preparation and use - Google Patents

Cobalt powders,their preparation and use

Info

Publication number
IL39014A0
IL39014A0 IL39014A IL3901472A IL39014A0 IL 39014 A0 IL39014 A0 IL 39014A0 IL 39014 A IL39014 A IL 39014A IL 3901472 A IL3901472 A IL 3901472A IL 39014 A0 IL39014 A0 IL 39014A0
Authority
IL
Israel
Prior art keywords
preparation
cobalt powders
cobalt
powders
Prior art date
Application number
IL39014A
Other versions
IL39014A (en
Original Assignee
Graham Magnetics Inc
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 Graham Magnetics Inc filed Critical Graham Magnetics Inc
Publication of IL39014A0 publication Critical patent/IL39014A0/en
Publication of IL39014A publication Critical patent/IL39014A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/41—Preparation of salts of carboxylic acids
    • C07C51/418—Preparation of metal complexes containing carboxylic acid moieties
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G11B5/70605—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material metals or alloys
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G11B5/70605—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material metals or alloys
    • G11B5/70621—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material metals or alloys containing Co metal or alloys
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/714—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the dimension of the magnetic particles
    • 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
    • H01F1/04—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
    • H01F1/065—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 obtained by a reduction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • Y10T428/2998—Coated including synthetic resin or polymer

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Power Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Hard Magnetic Materials (AREA)
  • Paints Or Removers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Powder Metallurgy (AREA)
IL39014A 1971-03-24 1972-03-17 Ferromagnetic acicular cobalt particles their preparation and use IL39014A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12751471A 1971-03-24 1971-03-24
US228387A US3892673A (en) 1971-03-24 1972-02-22 Composition of metal salt crystals having a polymeric coating

Publications (2)

Publication Number Publication Date
IL39014A0 true IL39014A0 (en) 1972-05-30
IL39014A IL39014A (en) 1976-10-31

Family

ID=26825704

Family Applications (1)

Application Number Title Priority Date Filing Date
IL39014A IL39014A (en) 1971-03-24 1972-03-17 Ferromagnetic acicular cobalt particles their preparation and use

Country Status (15)

Country Link
US (1) US3892673A (en)
JP (1) JPS5245660B1 (en)
AT (1) AT331052B (en)
BE (1) BE781111A (en)
CA (1) CA972190A (en)
CH (1) CH566396A5 (en)
DE (1) DE2213131A1 (en)
ES (1) ES401098A1 (en)
FR (1) FR2130609B1 (en)
GB (1) GB1382724A (en)
IE (1) IE36220B1 (en)
IL (1) IL39014A (en)
IT (1) IT954521B (en)
NL (1) NL7203970A (en)
SE (1) SE388962B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3909240A (en) * 1973-09-28 1975-09-30 Graham Magnetics Inc Method of producing acicular metal crystals
DE2535277C2 (en) * 1975-08-07 1984-10-18 Basf Ag, 6700 Ludwigshafen Use of alkylene oxides to stabilize pyrophoric metal powder particles
NO155316C (en) * 1982-04-23 1987-03-11 Sintef PROCEDURE FOR MAKING MAGNETIC POLYMER PARTICLES.
WO1984002031A1 (en) * 1982-11-10 1984-05-24 Sintef Magnetic polymer particles and process for the preparation thereof
JP4072994B2 (en) * 2001-10-11 2008-04-09 学校法人日本大学 Magnetic particles
CN101781186A (en) * 2009-01-21 2010-07-21 尤米科尔公司 Cobalt oxalate powder and its application for producing co powder with superior cold compression and sintering characters

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2216770A (en) * 1937-02-11 1940-10-08 Glidden Co Method of making metal powders and product
US2621137A (en) * 1948-07-13 1952-12-09 Charles Hardy Inc Reducing metal powders
US2791561A (en) * 1950-04-27 1957-05-07 Gen Aniline & Film Corp Magnetic powders and method of making the same
US3228882A (en) * 1963-01-04 1966-01-11 Chevron Res Dispersions of ferromagnetic cobalt particles
US3228881A (en) * 1963-01-04 1966-01-11 Chevron Res Dispersions of discrete particles of ferromagnetic metals
US3574685A (en) * 1969-01-14 1971-04-13 Ibm Manufacture of magnetic particles by reacting iron,cobalt,or nickel salts with oxalic acid salts in dialkyl sulfoxide

Also Published As

Publication number Publication date
SE388962B (en) 1976-10-18
BE781111A (en) 1972-09-25
ATA243672A (en) 1975-10-15
NL7203970A (en) 1972-09-26
US3892673A (en) 1975-07-01
CA972190A (en) 1975-08-05
GB1382724A (en) 1975-02-05
IT954521B (en) 1973-09-15
IE36220B1 (en) 1976-09-15
FR2130609B1 (en) 1978-09-01
IL39014A (en) 1976-10-31
JPS5245660B1 (en) 1977-11-17
IE36220L (en) 1972-09-24
FR2130609A1 (en) 1972-11-03
DE2213131A1 (en) 1972-09-28
AT331052B (en) 1976-08-10
CH566396A5 (en) 1975-09-15
ES401098A1 (en) 1975-07-16

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