KR830005056A - Ba-페라이트(ferrite) 분말의 제조방법 - Google Patents
Ba-페라이트(ferrite) 분말의 제조방법 Download PDFInfo
- Publication number
- 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
- Authority
- KR
- South Korea
- Prior art keywords
- ferrite powder
- preparing
- ferrite
- precursor precipitate
- represented
- Prior art date
Links
- 229910000859 α-Fe Inorganic materials 0.000 title claims description 6
- 239000000843 powder Substances 0.000 title claims 2
- 238000000034 method Methods 0.000 title description 3
- 239000002243 precursor Substances 0.000 claims description 3
- 239000002244 precipitate Substances 0.000 claims 2
- 239000007864 aqueous solution Substances 0.000 claims 1
- 229910002091 carbon monoxide Inorganic materials 0.000 claims 1
- 229910052802 copper Inorganic materials 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 229910052738 indium Inorganic materials 0.000 claims 1
- 229910052748 manganese Inorganic materials 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 229910052759 nickel Inorganic materials 0.000 claims 1
- 229910052719 titanium Inorganic materials 0.000 claims 1
- 229910052725 zinc Inorganic materials 0.000 claims 1
- 230000005415 magnetization Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
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
- 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
Landscapes
- 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
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)
- 일반식Bao·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.
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US4584242A (en) * | 1984-05-31 | 1986-04-22 | Toda Kogyo Corp. | Plate-like barium ferrite particles for magnetic recording and process for producing the same |
JPS60255629A (ja) * | 1984-05-31 | 1985-12-17 | 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 |
JPS61168532A (ja) * | 1984-08-23 | 1986-07-30 | Sakai Chem Ind Co Ltd | 磁気記録用バリウムフェライト微結晶の製造方法 |
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 |
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 |
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 |
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 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB908218A (en) * | 1960-05-31 | 1962-10-17 | Ici Ltd | Non-metallic magnetic materials |
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 |
-
1980
- 1980-05-08 JP JP55059943A patent/JPS6012973B2/ja not_active Expired
-
1981
- 1981-03-26 KR KR1019810000996A patent/KR840000960B1/ko active
- 1981-03-31 EP EP81102435A patent/EP0039773B1/en not_active Expired
- 1981-03-31 DE DE8181102435T patent/DE3172106D1/de not_active Expired
- 1981-04-03 US US06/250,555 patent/US4414124A/en not_active Expired - Lifetime
- 1981-04-07 AU AU69148/81A patent/AU528987B2/en not_active Ceased
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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