KR830005056A - Ba-페라이트(ferrite) 분말의 제조방법 - Google Patents

Ba-페라이트(ferrite) 분말의 제조방법 Download PDF

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KR830005056A
KR830005056A KR1019810000996A KR810000996A KR830005056A KR 830005056 A KR830005056 A KR 830005056A KR 1019810000996 A KR1019810000996 A KR 1019810000996A KR 810000996 A KR810000996 A KR 810000996A KR 830005056 A KR830005056 A KR 830005056A
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ferrite powder
preparing
ferrite
precursor precipitate
represented
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KR1019810000996A
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KR840000960B1 (ko
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히로시 엔도오
마사시 아와
시게오 이이리
토시히꼬 오구찌
이사오 스스끼
나오유끼 히라테
마사루 하야시
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사바 쇼오이찌
도오쿄오 시바우라 덴기 가부시기 가이샤
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Application filed by 사바 쇼오이찌, 도오쿄오 시바우라 덴기 가부시기 가이샤 filed Critical 사바 쇼오이찌
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    • 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
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • 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, besides iron, 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
    • 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
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
    • C04B35/2683—Other ferrites containing alkaline earth metals or lead
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/50—Solid solutions
    • C01P2002/52—Solid solutions containing elements as dopants
    • 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
    • C01P2004/51—Particles with a specific particle size distribution
    • 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
    • C01P2004/60—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
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/42—Magnetic properties

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
  • Compounds Of Iron (AREA)

Abstract

내용 없음

Description

Ba-페라이트(ferrite) 분말의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 방법으로 얻은 Ba-페라이트 전구체(前驅體)에 대한 자화(磁化) 곡선도.
제2도는 본 발명 방법으로 얻은 Ba-페라이트에 대한 자화곡선도이다.

Claims (1)

  1. 일반식
    Bao·n(Fe1-mMm)2O3
    (식중 M=CO, Ti, Ni, Mn, Cu, Zn, In, Ge, Nb 중 적어도 1종류, m=0~0.2의 수, n=5.4~6.0의 수)로 표시되는 Ba-페라이트를 구성하는 비율로 선택된 각 원소이온을 함유하는 PH12 이상의 수용액을 150~250℃로 가열하여, 상기 식으로 표시되는 Ba-페라이트의 전구체 침전물을 생성시키는 공정과, 상기 생성시킨 전구체 침전물을 800℃ 이상의 온도로 소성하는 공정과를 구비하여 구성되는 것을 특징으로 하는 Ba-페라이트 분말의 제조방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019810000996A 1980-05-08 1981-03-26 Ba-페라이트(ferrite)분말의 제조 방법 KR840000960B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP55059943A JPS6012973B2 (ja) 1980-05-08 1980-05-08 Ｂａ−フエライト粉末の製造方法
JP59943 1980-05-08

Publications (2)

Publication Number Publication Date
KR830005056A true KR830005056A (ko) 1983-07-23
KR840000960B1 KR840000960B1 (ko) 1984-07-02

Family

ID=13127725

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019810000996A KR840000960B1 (ko) 1980-05-08 1981-03-26 Ba-페라이트(ferrite)분말의 제조 방법

Country Status (6)

Country Link
US (1) US4414124A (ko)
EP (1) EP0039773B1 (ko)
JP (1) JPS6012973B2 (ko)
KR (1) KR840000960B1 (ko)
AU (1) AU528987B2 (ko)
DE (1) DE3172106D1 (ko)

Families Citing this family (38)

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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
JPS5964531A (ja) * 1982-09-30 1984-04-12 Toshiba Corp Ｂａ―フェライト磁性粉末の製造方法
JPS59102823A (ja) * 1982-11-30 1984-06-14 Toshiba Corp 高密度記録用磁性粉の製造方法
JPS59161002A (ja) * 1983-02-05 1984-09-11 Toda Kogyo Corp 磁気記録用板状Ｂａフェライト微粒子粉末及びその製造法
JPS59175707A (ja) * 1983-03-26 1984-10-04 Toda Kogyo Corp 磁気記録用板状Ｂａフエライト微粒子粉末及びその製造法
GB2144114B (en) * 1983-07-28 1986-08-06 Central Glass Co Ltd Preparing ferrite of magnetoplumbite structure
JPS6069822A (ja) * 1983-08-19 1985-04-20 Toshiba Corp 磁気記録媒体
JPS6046932A (ja) * 1983-08-23 1985-03-14 Toshiba Corp 六方晶系フエライト磁性粉の製造方法
JPS6081804A (ja) * 1983-10-12 1985-05-09 Toda Kogyo Corp 磁気記録用六角板状Ｂａフエライト微粒子粉末及びその製造法
JPS6095902A (ja) * 1983-10-31 1985-05-29 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
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
JPS60161343A (ja) * 1984-01-26 1985-08-23 Hitachi Maxell Ltd 六方晶系フエライト磁性粉末の製造方法
JPS60158604A (ja) * 1984-01-27 1985-08-20 Ricoh Co Ltd 金属酸化物磁性体及び磁性膜
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JPS61101450A (ja) * 1984-10-24 1986-05-20 新技術開発事業団 非晶質強磁性酸化物
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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
JPS621123A (ja) * 1985-06-26 1987-01-07 Sony Corp 磁気転写方法
DE3537624A1 (de) * 1985-10-23 1987-04-23 Bayer Ag Feinteilige isometrische hexaferritpigmente, verfahren zu ihrer herstellung und deren verwendung
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
DE3702036A1 (de) * 1987-01-24 1988-08-04 Basf Ag Feststoff zur herstellung hexagonaler ferrite
US4778734A (en) * 1987-02-03 1988-10-18 Ube Industries, Ltd. Barium ferrite magnetic powder and magnetic recording medium containing the same
US5585032A (en) * 1987-04-21 1996-12-17 Ishihara Sangyo Kaisha, Ltd. Ferromagnetic fine powder for magnetic recording
DE3888071T2 (de) * 1987-04-21 1994-07-07 Ishihara Sangyo Kaisha Feines ferromagnetisches puder für magnetische speicher.
DE3808861A1 (de) * 1988-03-17 1989-09-28 Bayer Ag Feinteilige kaliumhaltige magnetische hexaferritpigmente aus faellungsmagnetit, verfahren zur ihrer herstellung und deren verwendung
JPH01305826A (ja) * 1988-06-01 1989-12-11 Sakai Chem Ind Co Ltd 板状バリウムフエライト微粉末の製造方法
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
JPH0620254A (ja) * 1992-07-03 1994-01-28 Tdk Corp 磁気記録媒体およびその製造方法
US5306592A (en) * 1992-10-29 1994-04-26 Eastman Kodak Company Method of preparing electrographic magnetic carrier particles
US5268249A (en) * 1992-10-29 1993-12-07 Eastman Kodak Company Magnetic carrier particles
JPH06208917A (ja) * 1993-09-01 1994-07-26 Toshiba Corp 磁気記録用磁性粉およびそれを用いた磁気記録媒体
JP2796058B2 (ja) * 1994-03-17 1998-09-10 株式会社東芝 磁気記録媒体
FR2785281B1 (fr) * 1999-07-05 2001-04-27 Ugimag Sa Procede de fabrication de poudres ou biscuits d'hexaferrites de type m
KR20230085157A (ko) * 2020-10-13 2023-06-13 오르후스 우니베르시테트 비자성 성분의 정렬을 통한 증강된 자기적 특성

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US3634254A (en) * 1969-06-16 1972-01-11 Gen Motors Corp Method of coprecipitating hexagonal ferrites
US4025449A (en) * 1975-10-21 1977-05-24 The Dow Chemical Company Process to produce barium and strontium ferrite

Also Published As

Publication number Publication date
US4414124A (en) 1983-11-08
EP0039773B1 (en) 1985-09-04
AU6914881A (en) 1981-11-12
KR840000960B1 (ko) 1984-07-02
AU528987B2 (en) 1983-05-19
DE3172106D1 (en) 1985-10-10
JPS6012973B2 (ja) 1985-04-04
EP0039773A1 (en) 1981-11-18
JPS56160328A (en) 1981-12-10

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