KR850003468A - 자기 기록용 판상(板狀) 바륨 페라이트의 제조방법 - Google Patents

자기 기록용 판상(板狀) 바륨 페라이트의 제조방법 Download PDF

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KR850003468A
KR850003468A KR1019840006586A KR840006586A KR850003468A KR 850003468 A KR850003468 A KR 850003468A KR 1019840006586 A KR1019840006586 A KR 1019840006586A KR 840006586 A KR840006586 A KR 840006586A KR 850003468 A KR850003468 A KR 850003468A
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노리미찌 나가이 (외 3)
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미쓰이 고로오 (외 1)
도다 고오교오 가부시기 가이샤
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G23/00—Compounds of titanium
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
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    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/0018—Mixed oxides or hydroxides
    • C01G49/0036—Mixed oxides or hydroxides containing one alkaline earth metal, magnesium or lead
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/0018—Mixed oxides or hydroxides
    • C01G49/0063—Mixed oxides or hydroxides containing zinc
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
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    • C01G49/0072—Mixed oxides or hydroxides containing manganese
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
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    • C01G49/00—Compounds of iron
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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
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    • C01G51/00—Compounds of cobalt
    • C01G51/006—Compounds containing, besides cobalt, two or more other elements, with the exception of oxygen or hydrogen
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G53/00—Compounds of nickel
    • C01G53/006—Compounds containing, besides nickel, two or more other elements, with the exception of oxygen or hydrogen
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • 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
    • G11B5/70678—Ferrites
    • 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
    • H01F1/10—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 non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure
    • H01F1/11—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 non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles
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    • C01P2004/00—Particle morphology
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  • Compounds Of Iron (AREA)
  • Hard Magnetic Materials (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

내용 없음

Description

자기 기록용 판상(板狀) 바륨 페라이트의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (9)

  1. 스필널상 결정구조를 갖고 있고 평균 입경이 0.1μm이하인 일반식(II)으로 표시되는 입자와 Ba 이온을 함유하는 수성 고 알칼리 현탁액을 Ba대 총 금속량의 원자비가 1 : 8 내지 1 : 10의 범위에 들도록 하여 250 내지 330℃ 범위의 온도에서 오오토클레이브 처리하는 것으로 되어 있는 것을 특징으로 하는 일반식(I)으로 표시되는 자기 기록용 판상 바륨 페리이트 입자의 제조방법.
    BaFe12-x-yMxTiyO19(Ⅰ)
    Fe12-x-yMxTiyO16(Ⅱ)
    상기 식에서 x 및 y는 각각 0.3 내지 1.2이고, M는 Co, Ni, Zn, Mn 중에서 선택되는 2가 금속이다.
  2. 제1항에 있어서, Fe(II)의 원은 수산화 제1철, 염화 제1철, 질산 제1철 또는 황산 제1철인 것을 특징으로 하는 제조방법.
  3. 제1항에 있어서, Ba이온의 원은 수산화 바륨, 산화 바륨, 질산 바륨 또는 염화 바륨인 것을 특징으로 하는 제조방법.
  4. 제1항에 있어서, Co(II)의 원은 질산 코발트, 염화 코발트 또는 황산 코발트인 것을 특징으로 하는 제조방법.
  5. 제1항에 있어서, Ti(IV)의 원은 염화 티탄, 티탄산 알칼리 또는 황산 티탄인 것을 특징으로 하는 제조방법.
  6. 제1항에 있어서, Ni(II)의 원은 염화니켈, 질산니켈 또는 황산니켈인 것을 특징으로 하는 제조방법.
  7. 제1항에 있어서, Zn(II)은 질산아연, 염화아연 또는 황산 아연인 것을 특징으로 하는 제조방법.
  8. 제1항에 있어서, Mn(II)은 질산망간, 염화망간 또는 황산 망간인 것을 특징으로 하는 제조방법.
  9. 제1항에 있어서, x는 y와 같은 것을 특징으로 하는 제조방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019840006586A 1983-10-31 1984-10-23 자기 기록용 판상(板狀)바륨 페라이트 입자의 제조방법 KR900002818B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP58204317A JPS6095902A (ja) 1983-10-31 1983-10-31 磁気記録用板状Ｂａフエライト微粒子粉末の製造法
JP58-204317 1983-10-31
JP204317 1983-10-31

Publications (2)

Publication Number Publication Date
KR850003468A true KR850003468A (ko) 1985-06-17
KR900002818B1 KR900002818B1 (ko) 1990-05-01

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ID=16488475

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Application Number Title Priority Date Filing Date
KR1019840006586A KR900002818B1 (ko) 1983-10-31 1984-10-23 자기 기록용 판상(板狀)바륨 페라이트 입자의 제조방법

Country Status (5)

Country Link
US (1) US4561988A (ko)
EP (1) EP0145229B1 (ko)
JP (1) JPS6095902A (ko)
KR (1) KR900002818B1 (ko)
DE (1) DE3470150D1 (ko)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1199501B (it) * 1984-10-12 1988-12-30 Consiglio Nazionale Ricerche Metodo per la preparazione di polveri fini di ferriti esagonali in particolare per la registrazione magnetica
JPH0690969B2 (ja) * 1984-11-30 1994-11-14 株式会社東芝 磁気記録媒体用磁性粉及びそれを用いた磁気記録媒体
FR2574397B1 (fr) * 1984-12-11 1987-01-09 Centre Nat Rech Scient Procede de preparation de ferrites hexagonales aimantees - utilisation de ces ferrites comme materiaux de base pour aimants ou pour l'enregistrement magnetique
JPS6255904A (ja) * 1985-09-05 1987-03-11 Sony Corp 六方晶系フエライト磁性粉末
DE3773008D1 (de) * 1986-01-29 1991-10-24 Toda Kogyo Corp Plaettchenfoermige bariumferritteilchen fuer magnetische aufzeichnung und verfahren zu ihrer herstellung.
JPS62176921A (ja) * 1986-01-29 1987-08-03 Toda Kogyo Corp 板状Ｂａフエライト微粒子粉末の製造法
US4820433A (en) * 1986-09-05 1989-04-11 Nippon Zeon Co., Ltd. Magnetic powder for magnetic recording
US4781852A (en) * 1986-10-24 1988-11-01 Olin Corporation Process for making selected doped barium and strontium hexaferrite particles
US4781981A (en) * 1986-12-19 1988-11-01 Toda Kogyo Corp. Plate-like magnetoplumbite ferrite particles for magnetic recording and process for producing the same
US4828916A (en) * 1986-12-27 1989-05-09 Toda Kogyo Corporation Plate-like magnetoplumbite type ferrite particles for magnetic recording and magnetic recording media using the same
US5075169A (en) * 1988-06-08 1991-12-24 Toda Kogyo Corp. Plate-like composite ferrite particles for magnetic recording and process for producing the same
DE68925157T2 (de) * 1988-06-28 1996-09-05 Toda Kogyo Corp Plättchenförmige feine Ferritteilchen, geeignet zur Verwendung bei magnetischer Aufzeichnung und Verfahren zur Herstellung derselben
US5055322A (en) * 1989-11-02 1991-10-08 Nippon Zeon Co., Ltd. Method of producing magnetic recording media
CN111732127B (zh) * 2020-07-02 2022-04-19 安徽大学 磁场辅助溶剂热合成铁氧体的方法以及磁性晶粒大小与形貌特征调控方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3041960C2 (de) * 1979-11-08 1983-07-21 Tokyo Shibaura Denki K.K., Kawasaki, Kanagawa Verfahren zur Herstellung eines Magnetpulvers für die Magnetaufzeichnung mit hoher Dichte
JPS5667904A (en) * 1979-11-08 1981-06-08 Toshiba Corp Preparation method of megnetic powder for high density magnetic recording
JPS6012973B2 (ja) * 1980-05-08 1985-04-04 株式会社東芝 Ｂａ−フエライト粉末の製造方法
EP0072436B1 (de) * 1981-08-19 1986-10-01 BASF Aktiengesellschaft Verfahren zur Herstellung feinteiliger Ferritpulver
EP0072437B1 (de) * 1981-08-19 1987-01-07 BASF Aktiengesellschaft Verfahren zur Herstellung feinteiliger Ferritpulver
JPS5856302A (ja) * 1981-09-30 1983-04-04 Toshiba Corp 高密度磁気記録用磁性粉の製造方法
JPS5941806A (ja) * 1982-08-31 1984-03-08 Toda Kogyo Corp 磁気記録用板状Ｂａフエライト粒子粉末の製造法
JPS60137002A (ja) * 1983-12-26 1985-07-20 Toda Kogyo Corp 磁気記録用板状Ｂａフエライト微粒子粉末の製造法

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Publication number Publication date
JPH0347564B2 (ko) 1991-07-19
KR900002818B1 (ko) 1990-05-01
EP0145229A1 (en) 1985-06-19
JPS6095902A (ja) 1985-05-29
US4561988A (en) 1985-12-31
EP0145229B1 (en) 1988-03-30
DE3470150D1 (en) 1988-05-05

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