DE68905620D1 - Feine eisenkarbidteilchen und verfahren zu ihrer herstellung. - Google Patents
Feine eisenkarbidteilchen und verfahren zu ihrer herstellung.Info
- Publication number
- DE68905620D1 DE68905620D1 DE8989101464T DE68905620T DE68905620D1 DE 68905620 D1 DE68905620 D1 DE 68905620D1 DE 8989101464 T DE8989101464 T DE 8989101464T DE 68905620 T DE68905620 T DE 68905620T DE 68905620 D1 DE68905620 D1 DE 68905620D1
- Authority
- DE
- Germany
- Prior art keywords
- production
- carbide particles
- fine iron
- iron carbide
- fine
- 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 - Fee Related
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
- G11B5/70605—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 metals or alloys
- G11B5/70615—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 metals or alloys containing Fe metal or alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/20—Carbon compounds
- B01J27/22—Carbides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/90—Carbides
- C01B32/914—Carbides of single elements
-
- 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
- G11B5/712—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 surface treatment or coating of magnetic 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
- C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/80—Particles consisting of a mixture of two or more inorganic phases
-
- 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)
- Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Hard Magnetic Materials (AREA)
- Compounds Of Iron (AREA)
- Carbon And Carbon Compounds (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63016652A JPH0729765B2 (ja) | 1988-01-27 | 1988-01-27 | 炭化鉄微粒子及びその製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68905620D1 true DE68905620D1 (de) | 1993-05-06 |
DE68905620T2 DE68905620T2 (de) | 1993-10-21 |
Family
ID=11922275
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE89101464T Expired - Fee Related DE68905620T2 (de) | 1988-01-27 | 1989-01-27 | Feine Eisenkarbidteilchen und Verfahren zu ihrer Herstellung. |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0326165B1 (de) |
JP (1) | JPH0729765B2 (de) |
DE (1) | DE68905620T2 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0230626A (ja) * | 1988-04-28 | 1990-02-01 | Daikin Ind Ltd | 炭化鉄微粒子及びその製造法 |
JPH085651B2 (ja) * | 1990-07-02 | 1996-01-24 | ダイキン工業株式会社 | 炭化鉄微粒子の製造方法 |
JPH07320919A (ja) * | 1994-05-24 | 1995-12-08 | Daikin Ind Ltd | 被着した微粒子及びその製法並びに用途 |
CN103030143B (zh) * | 2012-08-09 | 2015-02-18 | 北京大学 | 碳化铁颗粒、其制备方法及用途 |
WO2019065956A1 (ja) * | 2017-09-28 | 2019-04-04 | 株式会社フジミインコーポレーテッド | 水酸化アルミニウム被覆炭化珪素粒子粉体の製造方法、ならびに当該粉体および分散媒を含む分散体の製造方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3572993A (en) * | 1968-07-23 | 1971-03-30 | Du Pont | Ultrafine,nonpyrophoric,chi-iron carbide having high coercivity |
JPS59199533A (ja) * | 1983-04-25 | 1984-11-12 | Daikin Ind Ltd | 磁性粉末 |
JPS60141611A (ja) * | 1983-12-28 | 1985-07-26 | Daikin Ind Ltd | 炭化鉄を含有する針状粒子及びその製法 |
JPS61111921A (ja) * | 1984-11-01 | 1986-05-30 | Daikin Ind Ltd | 炭化鉄を含有する針状粒子の製造法 |
JPS61196502A (ja) * | 1985-02-27 | 1986-08-30 | Mitsui Toatsu Chem Inc | 磁性素材及びその製造方法 |
JPS61234506A (ja) * | 1985-04-11 | 1986-10-18 | Mitsui Toatsu Chem Inc | 磁性素材及びその製造方法 |
JPS6258604A (ja) * | 1985-09-09 | 1987-03-14 | Mitsui Toatsu Chem Inc | 磁気記録用磁性鉄粉の製造方法 |
JPH0635326B2 (ja) * | 1986-07-04 | 1994-05-11 | ダイキン工業株式会社 | 炭化鉄を含有する粒子の製造法 |
US4900464A (en) * | 1985-12-24 | 1990-02-13 | Daikin Industries Ltd. | Particles containing iron carbide |
-
1988
- 1988-01-27 JP JP63016652A patent/JPH0729765B2/ja not_active Expired - Lifetime
-
1989
- 1989-01-27 EP EP89101464A patent/EP0326165B1/de not_active Expired - Lifetime
- 1989-01-27 DE DE89101464T patent/DE68905620T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0326165A2 (de) | 1989-08-02 |
JPH0729765B2 (ja) | 1995-04-05 |
EP0326165B1 (de) | 1993-03-31 |
DE68905620T2 (de) | 1993-10-21 |
JPH01192713A (ja) | 1989-08-02 |
EP0326165A3 (en) | 1990-07-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8328 | Change in the person/name/address of the agent |
Free format text: BARZ, P., DIPL.-CHEM. DR.RER.NAT., PAT.-ANW., 80803 MUENCHEN |
|
8339 | Ceased/non-payment of the annual fee |