JPS6332243B2 - - Google Patents

Info

Publication number
JPS6332243B2
JPS6332243B2 JP56159066A JP15906681A JPS6332243B2 JP S6332243 B2 JPS6332243 B2 JP S6332243B2 JP 56159066 A JP56159066 A JP 56159066A JP 15906681 A JP15906681 A JP 15906681A JP S6332243 B2 JPS6332243 B2 JP S6332243B2
Authority
JP
Japan
Prior art keywords
feooh
reaction
nucleation
amount
crystals
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
Application number
JP56159066A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5860505A (ja
Inventor
Kazuo Nakada
Tsuneo Ishikawa
Makoto Ogasawara
Taro Amamoto
Toshihiko Kawamura
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.)
Ishihara Sangyo Kaisha Ltd
Original Assignee
Ishihara Sangyo Kaisha 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 Ishihara Sangyo Kaisha Ltd filed Critical Ishihara Sangyo Kaisha Ltd
Priority to JP56159066A priority Critical patent/JPS5860505A/ja
Publication of JPS5860505A publication Critical patent/JPS5860505A/ja
Publication of JPS6332243B2 publication Critical patent/JPS6332243B2/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
    • G11B5/70652—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
    • G11B5/70663—Preparation processes specially adapted therefor, e.g. using stabilising agents

Landscapes

  • Compounds Of Iron (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Hard Magnetic Materials (AREA)
JP56159066A 1981-10-06 1981-10-06 磁気記録材料用針状α−ＦｅＯＯＨの製造方法 Granted JPS5860505A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56159066A JPS5860505A (ja) 1981-10-06 1981-10-06 磁気記録材料用針状α−ＦｅＯＯＨの製造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56159066A JPS5860505A (ja) 1981-10-06 1981-10-06 磁気記録材料用針状α−ＦｅＯＯＨの製造方法

Publications (2)

Publication Number Publication Date
JPS5860505A JPS5860505A (ja) 1983-04-11
JPS6332243B2 true JPS6332243B2 (enrdf_load_stackoverflow) 1988-06-29

Family

ID=15685464

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56159066A Granted JPS5860505A (ja) 1981-10-06 1981-10-06 磁気記録材料用針状α−ＦｅＯＯＨの製造方法

Country Status (1)

Country Link
JP (1) JPS5860505A (enrdf_load_stackoverflow)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3873462A (en) * 1973-04-27 1975-03-25 American Cyanamid Co Cobalt modified iron oxides
IT1159851B (it) * 1978-06-20 1987-03-04 Cselt Centro Studi Lab Telecom Perfezionamenti ai sistemi di trasmissione a divisione di lunghezza d'onda

Also Published As

Publication number Publication date
JPS5860505A (ja) 1983-04-11

Similar Documents

Publication Publication Date Title
JPS6113362B2 (enrdf_load_stackoverflow)
KR890003881B1 (ko) 코발트 및 제 1 철 함유 강자성 산화철의 제조방법
JPS6135135B2 (enrdf_load_stackoverflow)
US6140001A (en) Iron oxide microparticles and a process for producing them
JPS6334608B2 (enrdf_load_stackoverflow)
JPS6332243B2 (enrdf_load_stackoverflow)
JPH0585487B2 (enrdf_load_stackoverflow)
JPS639735B2 (enrdf_load_stackoverflow)
KR890000702B1 (ko) 코발트-함유 자성 산화철 분말의 제조방법
JP2885253B2 (ja) 紡錘状を呈したゲータイト粒子粉末の製造法
JP3087778B2 (ja) 針状ゲータイト粒子粉末の製造法
JPS63162535A (ja) 針状ヘマタイト粒子粉末の製造法
JP2931182B2 (ja) 針状γ−ＦｅＯＯＨの製造方法
JPH0415601B2 (enrdf_load_stackoverflow)
JP3087779B2 (ja) 針状ゲータイト粒子粉末の製造法
JP3087780B2 (ja) 針状ゲータイト粒子粉末の製造法
JP3087777B2 (ja) 針状ゲータイト粒子粉末の製造法
JPH0518766B2 (enrdf_load_stackoverflow)
JPH011207A (ja) 磁気記録材料用α−Ｆｅ００Ｈの製造方法
JP2883962B2 (ja) 針状ゲータイト粒子粉末の製造法
JPS5951498B2 (ja) 針状晶α−ＦｅＯＯＨ粒子粉末の製造法
JPS5950607B2 (ja) 針状晶磁性酸化鉄粒子粉末の製造法
JPH0160923B2 (enrdf_load_stackoverflow)
JPS59562B2 (ja) 強磁性金属粉末およびその製造方法
JPH0310579B2 (enrdf_load_stackoverflow)