IT954521B - Polveri di cobalto loro prepara zione ed uso - Google Patents

Polveri di cobalto loro prepara zione ed uso

Info

Publication number
IT954521B
IT954521B IT67909/72A IT6790972A IT954521B IT 954521 B IT954521 B IT 954521B IT 67909/72 A IT67909/72 A IT 67909/72A IT 6790972 A IT6790972 A IT 6790972A IT 954521 B IT954521 B IT 954521B
Authority
IT
Italy
Prior art keywords
preparation
cobalt powder
cobalt
powder
Prior art date
Application number
IT67909/72A
Other languages
English (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
Application granted granted Critical
Publication of IT954521B publication Critical patent/IT954521B/it

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making non-ferrous alloys
    • C22C1/04Making non-ferrous alloys by powder metallurgy
    • C22C1/0433Nickel- or cobalt-based alloys
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/16Metallic particles coated with a non-metal
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62Record carriers characterised by the selection of the material
    • G11B5/68Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70Record 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
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62Record carriers characterised by the selection of the material
    • G11B5/68Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70Record 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
    • G11B5/706Record 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
    • G11B5/70605Record 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
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62Record carriers characterised by the selection of the material
    • G11B5/68Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70Record 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
    • G11B5/706Record 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
    • G11B5/70605Record 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
    • G11B5/70621Record 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
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62Record carriers characterised by the selection of the material
    • G11B5/68Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70Record 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
    • G11B5/714Record 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
    • 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
    • H01F1/06Magnets 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
    • H01F1/061Magnets 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
    • 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
    • H01F1/06Magnets 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
    • H01F1/065Magnets 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
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/29Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991Coated
    • Y10T428/2998Coated including synthetic resin or polymer

Landscapes

  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Hard Magnetic Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
IT67909/72A 1971-03-24 1972-03-22 Polveri di cobalto loro prepara zione ed uso IT954521B (it)

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 (1)

Publication Number Publication Date
IT954521B true IT954521B (it) 1973-09-15

Family

ID=26825704

Family Applications (1)

Application Number Title Priority Date Filing Date
IT67909/72A IT954521B (it) 1971-03-24 1972-03-22 Polveri di cobalto loro prepara zione ed uso

Country Status (15)

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

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 (de) * 1975-08-07 1984-10-18 Basf Ag, 6700 Ludwigshafen Verwendung von Alkylenoxiden zur Stabilisierung pyrophorer Metallpulverteilchen
NO155316C (no) * 1982-04-23 1987-03-11 Sintef Fremgangsmaate for fremstilling av magnetiske polymerpartikler.
WO1984002031A1 (en) * 1982-11-10 1984-05-24 Sintef Magnetic polymer particles and process for the preparation thereof
JP4072994B2 (ja) * 2001-10-11 2008-04-09 学校法人日本大学 磁性粒子
CN101781186A (zh) * 2009-01-21 2010-07-21 尤米科尔公司 草酸钴粉末及其用于制造具有优良冷压和烧结性质的Co粉末的用途

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
IL39014A0 (en) 1972-05-30
IL39014A (en) 1976-10-31
GB1382724A (en) 1975-02-05
CA972190A (en) 1975-08-05
DE2213131A1 (de) 1972-09-28
AT331052B (de) 1976-08-10
JPS5245660B1 (it) 1977-11-17
IE36220L (en) 1972-09-24
ES401098A1 (es) 1975-07-16
NL7203970A (it) 1972-09-26
FR2130609B1 (it) 1978-09-01
IE36220B1 (en) 1976-09-15
ATA243672A (de) 1975-10-15
FR2130609A1 (it) 1972-11-03
SE388962B (sv) 1976-10-18
CH566396A5 (it) 1975-09-15
US3892673A (en) 1975-07-01
BE781111A (fr) 1972-09-25

Similar Documents

Publication Publication Date Title
ZA731411B (en) Preparation of ethers of n-prpanolamine and use thereof
GB1403004A (en) Bis-oxoazetidine derivatives and preparation thereof
IT965286B (it) Procedimento per fabbricare vernici in polvere
IL39654A (en) The preparation of certain n-aryl-ureas and their use as herbicides
AR195887A1 (es) Pigmentos disazoicos, procediiento para su preparacion y utilizacion
AR194749A1 (es) Nuevos pigmentos disazoicos y procedimiento para su preparacion y empleo
AR194750A1 (es) Nuevos pigmentos disazoicos,procedimiento para su preparacion y empleo
AR195183A1 (es) Nuevos pigmentos disazoicos,procedimiento para su preparacion y empleo
IT954521B (it) Polveri di cobalto loro prepara zione ed uso
IT986997B (it) Azocoloranti basici loro prepara zione e loro impiego
ZA726271B (en) New phenylimino-3-aza-1-thia-cycloalkanes their preparation and their medicinal use
IT970224B (it) Monoazocoloranti reattivi loro impiego e procedimento per la loro preparazione
IL38846A0 (en) Substituted thiadiazolidinediones and their use as herbicides
ZA715112B (en) New pyrido-pyrimidine derivatives and the preparation thereof
AU473933B2 (en) New nitro-imidazoles and their manufacture and use
IT956656B (it) Composti disazoici loro preparazio ne e loro impiego
ZA726310B (en) New nitrofuran derivatives and the preparation thereof
IT955818B (it) Monoazocoloranti idrosolubili e procedimento per la loro prepara zione
IL40327A0 (en) Thiophene-phosphorus derivatives and their use as insecticides
IT953628B (it) Derivati fenilureici loro prepara zione e impiego come erbicidi
AU450701B2 (en) New cycloalkano-quinolone derivatives and the preparation thereof
ZA727504B (en) Nitrofuran derivatives and the preparation thereof
IT953561B (it) Composti enamminici loro preparazione ed impiego
CA842841A (en) 6-diloweralkylamino-fluoran derivatives and their preparation and use
AU452198B2 (en) Nitroquinazolinone derivatives and preparation thereof