KR850004867A - 자기기록용 판상 바륨페라이트 입자의 제조방법 - Google Patents
자기기록용 판상 바륨페라이트 입자의 제조방법 Download PDFInfo
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- KR850004867A KR850004867A KR1019840006784A KR840006784A KR850004867A KR 850004867 A KR850004867 A KR 850004867A KR 1019840006784 A KR1019840006784 A KR 1019840006784A KR 840006784 A KR840006784 A KR 840006784A KR 850004867 A KR850004867 A KR 850004867A
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- 239000002245 particle Substances 0.000 title claims description 7
- AJCDFVKYMIUXCR-UHFFFAOYSA-N oxobarium;oxo(oxoferriooxy)iron Chemical compound [Ba]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O AJCDFVKYMIUXCR-UHFFFAOYSA-N 0.000 title claims description 6
- 238000004519 manufacturing process Methods 0.000 title claims 3
- 238000000034 method Methods 0.000 claims description 15
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 claims description 9
- 239000010936 titanium Substances 0.000 claims 8
- IEECXTSVVFWGSE-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Fe+3] IEECXTSVVFWGSE-UHFFFAOYSA-M 0.000 claims 6
- 229910052751 metal Inorganic materials 0.000 claims 6
- 239000002184 metal Substances 0.000 claims 6
- 239000000725 suspension Substances 0.000 claims 6
- IWOUKMZUPDVPGQ-UHFFFAOYSA-N barium nitrate Chemical compound [Ba+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O IWOUKMZUPDVPGQ-UHFFFAOYSA-N 0.000 claims 4
- 229960004887 ferric hydroxide Drugs 0.000 claims 4
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 claims 4
- 239000000203 mixture Substances 0.000 claims 4
- 239000003513 alkali Substances 0.000 claims 3
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims 2
- WDIHJSXYQDMJHN-UHFFFAOYSA-L barium chloride Chemical compound [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 claims 2
- 229910001626 barium chloride Inorganic materials 0.000 claims 2
- RQPZNWPYLFFXCP-UHFFFAOYSA-L barium dihydroxide Chemical compound [OH-].[OH-].[Ba+2] RQPZNWPYLFFXCP-UHFFFAOYSA-L 0.000 claims 2
- 229910001863 barium hydroxide Inorganic materials 0.000 claims 2
- GVPFVAHMJGGAJG-UHFFFAOYSA-L cobalt dichloride Chemical compound [Cl-].[Cl-].[Co+2] GVPFVAHMJGGAJG-UHFFFAOYSA-L 0.000 claims 2
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt dinitrate Chemical compound [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 claims 2
- 229910001981 cobalt nitrate Inorganic materials 0.000 claims 2
- 150000001875 compounds Chemical class 0.000 claims 2
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims 2
- 229910021519 iron(III) oxide-hydroxide Inorganic materials 0.000 claims 2
- 239000000843 powder Substances 0.000 claims 2
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 claims 2
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 238000011074 autoclave method Methods 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
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- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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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
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- 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
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- 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
-
- 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
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- 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
- C01P2002/54—Solid solutions containing elements as dopants one element only
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- C01P2004/20—Particle morphology extending in two dimensions, e.g. plate-like
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- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
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- General Life Sciences & Earth Sciences (AREA)
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Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 수계 현탁액내 Si(Ⅳ) 대 Fe(Ⅲ)의 원자비에 해당하는 규산나트륨의 양과 수용액중 오오토클레이브 법에 의해 생성된 판상 바륨페라이트 입자의 두께와의 관계를 표시하고, 두께는 X선 회절법으로 측정된 D114값으로 표시되어 있는 그래프이다.
Claims (16)
- Ti(Ⅳ), Ba(Ⅱ) 및 Co(Ⅱ) 또는 Co(Ⅱ)와 M(Ⅱ)로서의 Co이외의 2가금속과의 혼합물을 함유하는 수산화제2철의 수계(水系) 고알칼리성 현탁액에, Si(Ⅳ) 대 Fe(Ⅲ)의 원자비가 0.0025 내지 0.036의 범위에 들도록 적량의 Si(Ⅳ) 화합물을 가하고, 얻어진 수산화제2철의 수계 고알칼리성 현탁액을 200 내지 330℃의 온도에서 오오토클레이브 처리하고, 그리하여 Si(Ⅳ) 대 Fe(Ⅲ)의 원자비에 따라 그 두께가 제어되어 있는 판상 바륨페라이트 입자를 얻는 것으로 되어 있는 것을 특징으로 하는, 다음 일반식(I)로 표시되는 자기기록용 판상 바륨페라이트 입자의 제조방법.BaFe12-x-yMxTiyO19(I)상기 식에서, x 및 y는 각각 1.2이하이고, M은 Co(Ⅱ)이거나, 또는 Co(Ⅱ)와 Co 이외의 2가금속과의 혼합물이다.
- 제1항에 있어서, 수계 고알칼리 현탁액에서 M(Ⅱ)와 Ti(Ⅳ)의 총합계 대 Fe(Ⅲ)의 원자비가 0.01:1 내지 0.25:1인 것을 특징으로 하는 제조방법.
- 제1항에 있어서, 2가금속이 Zn(Ⅱ) 또는 Mn(Ⅱ)인 것을 특징으로 하는 제조방법.
- 제1항에 있어서, Fe(Ⅲ)의 원은 염화제2철, 질산 제2철 또는 옥시수산화 제2철분말인 것을 특징으로 하는 제조방법.
- 제1항에 있어서, Ba(Ⅱ)의 원은 수산화바륨, 질산 바륨 또는 염화바륨인 것을 특징으로 하는 제조방법.
- 제1항에 있어서, Co(Ⅱ)의 원은 질산코발트 또는 염화코발트인 것을 특징으로 하는 제조방법.
- 제1항에 있어서, Ti(Ⅳ)의 원은 염화티탄 또는 티탄산 알칼리인 것을 특징으로 하는 제조방법.
- 제1항에 있어서, x는 y와 같은 것을 특징으로 하는 제조방법.
- Ti(Ⅳ), Ba(Ⅱ) 및 Co(Ⅱ) 또는 Co(Ⅱ)와 M(Ⅱ)로서의 Co이외의 2가금속과의 혼합물을 함유하는 수산화제 2철의 수계 고알칼리성 현탁액에, Si(Ⅳ) 대 Fe(Ⅲ)의 원자비가 0.0025 내지 0.036의 범위에 들도록 적량의 Si(Ⅳ) 화합물을 가하고, 얻어진 수산화제2철의 수계 고알칼리성 현탁액을 200 내지 330℃의 온도에서 오오토클레이브 처리하여, Si(Ⅳ) 대 Fe(Ⅲ)의 원자비에 따라 그 두께가 제어되어 있는 판상 바륨페라이트 입자를 얻고, 그런뒤 얻어진 입자를 900℃ 이하의 온도에서 열처리받게 하는 것으로 되어있는 것을 특징으로 하는, 다음 일반식(I)으로 표시되는 자기기록용 판상 바륨페라이트 입자의 제조방법.BaFe12-x-yMxTiyO19(I)상기 식에서, x 및 y는 각각 1.2이하이고, M은 Co(Ⅱ)이거나, 또는 Co(Ⅱ)와 Co 이외의 2가금속과의 혼합물이다.
- 제9항에 있어서, 수계 고알칼리성 현탁액에서 M(Ⅱ)와 Ti(Ⅳ)의 총합계 대 Fe(Ⅲ)의 원자비가 0.01:1 내지 0.25:1인 것을 특징으로 하는 제조방법.
- 제9항에 있어서, 2가금속이 Zn(Ⅲ) 또는 Mn(Ⅱ)인 것을 특징으로 하는 제조방법.
- 제9항에 있어서, Fe(Ⅲ)의 원은 염화제2철, 질산제2철 또는 옥시수산화 제2철분말인 것을 특징으로 하는 제조방법.
- 제9항에 있어서, Ba(Ⅱ)의 원은 수산화바륨, 질산바륨 또는 염화바륨인 것을 특징으로 하는 제조방법.
- 제9항에 있어서, Co(Ⅱ)의 원은 질산코발트 또는 염화코발트인 것을 특징으로 하는 제조방법.
- 제9항에 있어서, Ti(Ⅳ)의 원은 염화티탄 또는 티탄산 알칼리인 것을 특징으로 하는 제조방법.
- 제1항에 있어서, x는 y와 같은 것을 특징으로 하는 제조방법.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP???58-247520 | 1983-12-26 | ||
| JP247520 | 1983-12-26 | ||
| JP58247520A JPS60137002A (ja) | 1983-12-26 | 1983-12-26 | 磁気記録用板状Ｂａフエライト微粒子粉末の製造法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR850004867A true KR850004867A (ko) | 1985-07-27 |
| KR900000428B1 KR900000428B1 (ko) | 1990-01-30 |
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ID=17164706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019840006784A KR900000428B1 (ko) | 1983-12-26 | 1984-10-31 | 자기기록용 판상 바륨페라이트 입자의 제조방법 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4529524A (ko) |
| EP (1) | EP0150580B1 (ko) |
| JP (1) | JPS60137002A (ko) |
| KR (1) | KR900000428B1 (ko) |
| DE (1) | DE3469726D1 (ko) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| EP0232131B1 (en) * | 1986-01-29 | 1991-09-18 | Toda Kogyo Corp. | Plate-like barium ferrite particles suitable for use in magnetic recording and process for producing the same |
| JPH077499B2 (ja) * | 1986-01-29 | 1995-01-30 | ソニー株式会社 | 磁気記録媒体 |
| 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 |
| JPH0692256B2 (ja) * | 1986-12-26 | 1994-11-16 | 宇部興産株式会社 | バリウムフエライト粉末の製造法 |
| 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 |
| WO1988005337A1 (en) * | 1987-01-16 | 1988-07-28 | Clarkson University | Process for preparation of monodispersed barium containing ferrites |
| 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 |
| JPH02296303A (ja) * | 1989-05-11 | 1990-12-06 | Nippon Zeon Co Ltd | 磁気記録媒体用磁性粉 |
| DE3932389A1 (de) * | 1989-09-28 | 1991-04-11 | Basf Ag | Verfahren zur herstellung von feinteiligem pulverfoermigem hexagonalem ferrit und seine verwendung zur herstellung von magnetischen aufzeichnungstraegern |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL97514C (ko) * | 1956-01-24 | 1961-04-17 | ||
| NL7004295A (ko) * | 1969-05-07 | 1970-11-10 | ||
| US3897354A (en) * | 1972-04-29 | 1975-07-29 | Bayer Ag | Cobalt-containing acicular ferrimagnetic iron oxide of improved remanence stability |
| US4136158A (en) * | 1976-11-01 | 1979-01-23 | Toda Kogyo Corp. | Production of acicular magnetic iron oxides |
| JPS5667904A (en) * | 1979-11-08 | 1981-06-08 | Toshiba Corp | Preparation method of megnetic powder for high density magnetic recording |
| JPS5676510A (en) * | 1979-11-28 | 1981-06-24 | Tdk Corp | Manufacture of magnetic recording material |
| 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 |
| JPS5756904A (en) * | 1980-09-22 | 1982-04-05 | Toshiba Corp | Magnetic powder for magnetic recording medium |
| JPS57198604A (en) * | 1981-05-30 | 1982-12-06 | Toshiba Corp | Ferromagnetic powder for magnetic recording medium and manufacture thereof |
| JPS5856303A (ja) * | 1981-09-30 | 1983-04-04 | Toshiba Corp | 磁性粉末の製造法 |
| US4457955A (en) * | 1981-12-29 | 1984-07-03 | Daikin Kogyo Company, Ltd. | Process for producing magnetizable particles |
-
1983
- 1983-12-26 JP JP58247520A patent/JPS60137002A/ja active Granted
-
1984
- 1984-10-29 US US06/666,253 patent/US4529524A/en not_active Expired - Lifetime
- 1984-10-31 KR KR1019840006784A patent/KR900000428B1/ko not_active IP Right Cessation
- 1984-11-21 EP EP84308065A patent/EP0150580B1/en not_active Expired
- 1984-11-21 DE DE8484308065T patent/DE3469726D1/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| KR900000428B1 (ko) | 1990-01-30 |
| DE3469726D1 (en) | 1988-04-14 |
| JPS60137002A (ja) | 1985-07-20 |
| EP0150580B1 (en) | 1988-03-09 |
| EP0150580A1 (en) | 1985-08-07 |
| US4529524A (en) | 1985-07-16 |
| JPH0314205B2 (ko) | 1991-02-26 |
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