JPS5537485A - Stabilized ferromagnetic chromium oxide and preparing same - Google Patents

Stabilized ferromagnetic chromium oxide and preparing same

Info

Publication number
JPS5537485A
JPS5537485A JP9250179A JP9250179A JPS5537485A JP S5537485 A JPS5537485 A JP S5537485A JP 9250179 A JP9250179 A JP 9250179A JP 9250179 A JP9250179 A JP 9250179A JP S5537485 A JPS5537485 A JP S5537485A
Authority
JP
Japan
Prior art keywords
chromium oxide
preparing same
ferromagnetic chromium
stabilized ferromagnetic
stabilized
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.)
Pending
Application number
JP9250179A
Other languages
English (en)
Inventor
Bashire Jiyanpiero
Boero Jiyankaruro
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.)
Montedison SpA
Original Assignee
Montedison SpA
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 Montedison SpA filed Critical Montedison SpA
Publication of JPS5537485A publication Critical patent/JPS5537485A/ja
Pending legal-status Critical Current

Links

Classifications

    • 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
    • G11B5/70626—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 containing non-metallic substances
    • G11B5/70636—CrO2
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • 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

Landscapes

  • Hard Magnetic Materials (AREA)
  • Compounds Of Iron (AREA)
  • Paints Or Removers (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
JP9250179A 1978-07-21 1979-07-20 Stabilized ferromagnetic chromium oxide and preparing same Pending JPS5537485A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT25960/78A IT1097025B (it) 1978-07-21 1978-07-21 Biossido di cromo ferromagnetico stabilizzato e procedimento per ottenerlo

Publications (1)

Publication Number Publication Date
JPS5537485A true JPS5537485A (en) 1980-03-15

Family

ID=11218275

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9250179A Pending JPS5537485A (en) 1978-07-21 1979-07-20 Stabilized ferromagnetic chromium oxide and preparing same

Country Status (5)

Country Link
US (1) US4244932A (ja)
EP (1) EP0007764B1 (ja)
JP (1) JPS5537485A (ja)
DE (1) DE2960348D1 (ja)
IT (1) IT1097025B (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5295712A (en) * 1976-02-07 1977-08-11 Shinagawa Refractories Co Stamping material for conduits
JPS57500698A (ja) * 1980-05-30 1982-04-22

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3263019D1 (en) * 1981-10-26 1985-05-15 Du Pont Surface modified ferromagnetic chromium dioxide
DE3610411A1 (de) * 1986-03-27 1987-10-01 Basf Ag Verfahren zur stabilisierung von nadelfoermigem ferromagnetischem chromdioxid
US7147916B2 (en) * 2001-09-03 2006-12-12 Sony Corporation Magnetic material, method for producing the same, and magnetic recording medium
CN112374877B (zh) * 2020-10-09 2022-05-13 河南师范大学 具有磁阻转换行为的CoFe2O4-CrO2复合材料的制备方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB859937A (en) * 1959-03-25 1961-01-25 Du Pont Improvements in ferromagnetic materials and processes for their preparation
FR1407333A (fr) * 1963-07-24 1965-07-30 Bayer Ag Bioxyde de chrome ferromagnétique modifié
US3904538A (en) * 1969-02-12 1975-09-09 Fuji Photo Film Co Ltd Method of producing ferromagnetic chromium dioxides
US3687726A (en) * 1970-10-19 1972-08-29 Du Pont Alumina coated chromium dioxide
DE2124812A1 (de) * 1971-05-19 1972-11-30 Bayer Ag Verfahren zur Herstellung von ferromagnetischem Chromdioxid
JPS5121200A (en) * 1974-08-15 1976-02-20 Nippon Chemical Ind Anteikasareta kyojiseinisankakuromusoseibutsu
FR2386486A1 (fr) * 1977-04-07 1978-11-03 Montedison Spa Bioxyde de chrome ferromagnetique stabilise et son procede de preparation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5295712A (en) * 1976-02-07 1977-08-11 Shinagawa Refractories Co Stamping material for conduits
JPS57500698A (ja) * 1980-05-30 1982-04-22

Also Published As

Publication number Publication date
EP0007764B1 (en) 1981-05-13
IT1097025B (it) 1985-08-26
IT7825960A0 (it) 1978-07-21
DE2960348D1 (en) 1981-08-20
EP0007764A1 (en) 1980-02-06
US4244932A (en) 1981-01-13

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