JPS61106409A - 炭化鉄を含有する針状粒子の製法 - Google Patents

炭化鉄を含有する針状粒子の製法

Info

Publication number
JPS61106409A
JPS61106409A JP59224967A JP22496784A JPS61106409A JP S61106409 A JPS61106409 A JP S61106409A JP 59224967 A JP59224967 A JP 59224967A JP 22496784 A JP22496784 A JP 22496784A JP S61106409 A JPS61106409 A JP S61106409A
Authority
JP
Japan
Prior art keywords
iron carbide
particles
particles containing
containing iron
iron
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.)
Granted
Application number
JP59224967A
Other languages
English (en)
Japanese (ja)
Other versions
JPS647009B2 (cg-RX-API-DMAC7.html
Inventor
Kazuo Okamura
和夫 岡村
Ikuo Kitamura
北村　郁夫
Hideki Aomi
秀樹 青海
Satoru Koyama
哲 小山
Katsushi Tokunaga
徳永　勝志
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.)
Daikin Industries Ltd
Original Assignee
Daikin Industries Ltd
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 Daikin Industries Ltd filed Critical Daikin Industries Ltd
Priority to JP59224967A priority Critical patent/JPS61106409A/ja
Priority to KR1019850007820A priority patent/KR890003868B1/ko
Priority to CA000493648A priority patent/CA1275782C/en
Priority to DE8585113611T priority patent/DE3581363D1/de
Priority to EP85113611A priority patent/EP0179489B1/en
Publication of JPS61106409A publication Critical patent/JPS61106409A/ja
Priority to US06/918,783 priority patent/US4842759A/en
Publication of JPS647009B2 publication Critical patent/JPS647009B2/ja
Priority to US07/327,461 priority patent/US5151206A/en
Granted legal-status Critical Current

Links

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/20—Carbon compounds
    • B01J27/22—Carbides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/90—Carbides
    • C01B32/907—Oxycarbides; Sulfocarbides; Mixture of carbides
    • 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
    • G11B5/70642—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 iron oxides
    • G11B5/70652—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 iron oxides gamma - Fe2 O3
    • G11B5/70668—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 iron oxides gamma - Fe2 O3 containing a dopant
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/54—Particles characterised by their aspect ratio, i.e. the ratio of sizes in the longest to the shortest dimension
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/80—Particles consisting of a mixture of two or more inorganic phases
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/42—Magnetic properties
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Power Engineering (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Compounds Of Iron (AREA)
  • Hard Magnetic Materials (AREA)
JP59224967A 1983-04-25 1984-10-25 炭化鉄を含有する針状粒子の製法 Granted JPS61106409A (ja)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP59224967A JPS61106409A (ja) 1984-10-25 1984-10-25 炭化鉄を含有する針状粒子の製法
KR1019850007820A KR890003868B1 (ko) 1984-10-25 1985-10-23 탄화철을 함유하는 침상입자의 제조방법
CA000493648A CA1275782C (en) 1984-10-25 1985-10-23 Process for producing acicular particles containing an iron carbide
DE8585113611T DE3581363D1 (de) 1984-10-25 1985-10-25 Verfahren zur herstellung von ein eisencarbid enthaltenden nadelfoermigen teilchen.
EP85113611A EP0179489B1 (en) 1984-10-25 1985-10-25 A process for producing acicular particles containing an iron carbide
US06/918,783 US4842759A (en) 1983-04-25 1986-10-14 Acicular process for producing particulate material
US07/327,461 US5151206A (en) 1983-04-25 1989-03-22 Acicular iron carbide particulate material and process for producing same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59224967A JPS61106409A (ja) 1984-10-25 1984-10-25 炭化鉄を含有する針状粒子の製法

Publications (2)

Publication Number Publication Date
JPS61106409A true JPS61106409A (ja) 1986-05-24
JPS647009B2 JPS647009B2 (cg-RX-API-DMAC7.html) 1989-02-07

Family

ID=16822009

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59224967A Granted JPS61106409A (ja) 1983-04-25 1984-10-25 炭化鉄を含有する針状粒子の製法

Country Status (5)

Country Link
EP (1) EP0179489B1 (cg-RX-API-DMAC7.html)
JP (1) JPS61106409A (cg-RX-API-DMAC7.html)
KR (1) KR890003868B1 (cg-RX-API-DMAC7.html)
CA (1) CA1275782C (cg-RX-API-DMAC7.html)
DE (1) DE3581363D1 (cg-RX-API-DMAC7.html)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5230758A (en) * 1975-09-05 1977-03-08 Hitachi Ltd Method to manufacture ferromagnetic matal poeder
JPS5328298A (en) * 1976-08-27 1978-03-16 Victor Co Of Japan Ltd Iron or iron alloy pulverule nt body and magnetic recording medium

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4122216A (en) * 1971-10-19 1978-10-24 Hitachi Maxell, Ltd. Ferro-magnetic acicular particles for recording medium and process for preparing the same
US3885023A (en) * 1973-02-15 1975-05-20 Phillips Petroleum Co Preparation of iron carbide (Fe{hd 3{b C)
EP0123318B1 (en) * 1983-04-25 1988-03-09 Daikin Kogyo Co., Ltd. Acicular particulate material containing iron carbide

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5230758A (en) * 1975-09-05 1977-03-08 Hitachi Ltd Method to manufacture ferromagnetic matal poeder
JPS5328298A (en) * 1976-08-27 1978-03-16 Victor Co Of Japan Ltd Iron or iron alloy pulverule nt body and magnetic recording medium

Also Published As

Publication number Publication date
EP0179489A2 (en) 1986-04-30
CA1275782C (en) 1990-11-06
EP0179489A3 (en) 1987-10-21
KR890003868B1 (ko) 1989-10-05
EP0179489B1 (en) 1991-01-16
KR860003632A (ko) 1986-05-28
DE3581363D1 (de) 1991-02-21
JPS647009B2 (cg-RX-API-DMAC7.html) 1989-02-07

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