JPH0261418B2 - - Google Patents

Info

Publication number
JPH0261418B2
JPH0261418B2 JP59175402A JP17540284A JPH0261418B2 JP H0261418 B2 JPH0261418 B2 JP H0261418B2 JP 59175402 A JP59175402 A JP 59175402A JP 17540284 A JP17540284 A JP 17540284A JP H0261418 B2 JPH0261418 B2 JP H0261418B2
Authority
JP
Japan
Prior art keywords
barium
barium ferrite
precursor
magnetic recording
ions
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.)
Expired - Lifetime
Application number
JP59175402A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61168532A (ja
Inventor
Susumu Iwasaki
Iwao Yamazaki
Tsutomu Hatanaka
Seiji Matsumoto
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.)
Sakai Chemical Industry Co Ltd
Original Assignee
Sakai Chemical Industry Co 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 Sakai Chemical Industry Co Ltd filed Critical Sakai Chemical Industry Co Ltd
Priority to JP59175402A priority Critical patent/JPS61168532A/ja
Priority to DE19853529756 priority patent/DE3529756A1/de
Priority to NL8502314A priority patent/NL8502314A/nl
Publication of JPS61168532A publication Critical patent/JPS61168532A/ja
Publication of JPH0261418B2 publication Critical patent/JPH0261418B2/ja
Granted 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
    • G11B5/70642—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • 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
    • 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
    • C01G49/0018—Mixed oxides or hydroxides
    • C01G49/0072—Mixed oxides or hydroxides containing manganese
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/009—Compounds containing iron, with or without oxygen or hydrogen, and containing two or more other elements
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G51/00—Compounds of cobalt
    • C01G51/80—Compounds containing cobalt, with or without oxygen or hydrogen, and containing one or more other elements
    • C01G51/82—Compounds containing cobalt, with or without oxygen or hydrogen, and containing two or more other elements
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G53/00—Compounds of nickel
    • C01G53/80—Compounds containing nickel, with or without oxygen or hydrogen, and containing one or more other elements
    • C01G53/82—Compounds containing nickel, with or without oxygen or hydrogen, and containing two or more other elements
    • 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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/01—Particle morphology depicted by an image
    • C01P2004/03—Particle morphology depicted by an image obtained by SEM
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/20—Particle morphology extending in two dimensions, e.g. plate-like
    • C01P2004/22—Particle morphology extending in two dimensions, e.g. plate-like with a polygonal circumferential shape
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/30—Particle morphology extending in three dimensions
    • C01P2004/32—Spheres
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/50—Agglomerated particles
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
    • 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
    • C01P2006/12—Surface area
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Composite Materials (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Power Engineering (AREA)
  • Compounds Of Iron (AREA)
  • Hard Magnetic Materials (AREA)
JP59175402A 1984-08-23 1984-08-23 磁気記録用バリウムフェライト微結晶の製造方法 Granted JPS61168532A (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP59175402A JPS61168532A (ja) 1984-08-23 1984-08-23 磁気記録用バリウムフェライト微結晶の製造方法
DE19853529756 DE3529756A1 (de) 1984-08-23 1985-08-20 Verfahren zur herstellung eines mikrokristallinen hexagonalen bariumferrit-pulvers
NL8502314A NL8502314A (nl) 1984-08-23 1985-08-22 Werkwijze voor de bereiding van microkristallijn bariumferrietpoeder.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59175402A JPS61168532A (ja) 1984-08-23 1984-08-23 磁気記録用バリウムフェライト微結晶の製造方法

Publications (2)

Publication Number Publication Date
JPS61168532A JPS61168532A (ja) 1986-07-30
JPH0261418B2 true JPH0261418B2 (enrdf_load_stackoverflow) 1990-12-20

Family

ID=15995462

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59175402A Granted JPS61168532A (ja) 1984-08-23 1984-08-23 磁気記録用バリウムフェライト微結晶の製造方法

Country Status (3)

Country Link
JP (1) JPS61168532A (enrdf_load_stackoverflow)
DE (1) DE3529756A1 (enrdf_load_stackoverflow)
NL (1) NL8502314A (enrdf_load_stackoverflow)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08702B2 (ja) * 1985-04-04 1996-01-10 石原産業株式会社 磁気記録用強磁性微粉末の製造方法
JPH0674146B2 (ja) * 1985-09-03 1994-09-21 宇部興産株式会社 バリウムフエライト粉末の製法
JPS6260209A (ja) * 1985-09-10 1987-03-16 Sony Corp 六方晶系フエライト磁性粉末の製造方法
DE3729693A1 (de) * 1986-09-05 1988-05-05 Sony Corp Verfahren zur herstellung feiner bariumferritteilchen
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
JPS63170220A (ja) * 1987-01-09 1988-07-14 Ube Ind Ltd バリウムフエライト磁性粉およびその製造方法
JPS63170221A (ja) * 1987-01-09 1988-07-14 Ube Ind Ltd バリウムフエライト磁性粉およびその製造方法
JPS63225533A (ja) * 1987-03-13 1988-09-20 Ube Ind Ltd バリウムフエライト粉末の製造方法
EP0349287B1 (en) * 1988-06-28 1995-12-20 Toda Kogyo Corp. Plate-like composite ferrite fine particles suitable for use in magnetic recording and process for producing the same
FR2638000B1 (fr) * 1988-10-18 1990-12-14 Kodak Pathe Carte a memoire magnetique a grande capacite et procede de fabrication
FR2639647B1 (fr) * 1988-10-18 1990-09-21 Kodak Pathe Milieu d'enregistrement magnetique
JPH02267122A (ja) * 1989-04-07 1990-10-31 Nippon Zeon Co Ltd 磁気記録媒体用磁性粉
EP0399665B1 (en) * 1989-04-28 1995-02-08 Ngk Insulators, Ltd. Method of manufacturing ferrite crystals and method of producing ferrite powders preferably used therefor
JPH02296303A (ja) * 1989-05-11 1990-12-06 Nippon Zeon Co Ltd 磁気記録媒体用磁性粉
US5055322A (en) * 1989-11-02 1991-10-08 Nippon Zeon Co., Ltd. Method of producing magnetic recording media
JP5390756B2 (ja) * 2007-08-02 2014-01-15 関東電化工業株式会社 薄片状Ｂａフェライト微粒子の製造方法
JP5754091B2 (ja) * 2010-06-30 2015-07-22 戸田工業株式会社 六方晶フェライト粒子粉末の製造法、及び磁気記録媒体の製造法
CN104671764B (zh) * 2015-01-29 2017-03-29 浙江大学 一种铌掺杂钡铁氧体吸波粉体材料及制备方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5820890B2 (ja) * 1974-03-01 1983-04-26 サカイカガクコウギヨウ カブシキガイシヤ フエライト粒子の製造法
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
ATE13393T1 (de) * 1981-08-25 1985-06-15 Fischer Ag Georg Dauerform, insbesondere eine metallische kokille.

Also Published As

Publication number Publication date
JPS61168532A (ja) 1986-07-30
DE3529756A1 (de) 1986-02-27
NL8502314A (nl) 1986-03-17

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