GB1409090A - Process for producing ferromagnetic chromium oxide compositions and such compositions - Google Patents
Process for producing ferromagnetic chromium oxide compositions and such compositionsInfo
- Publication number
- GB1409090A GB1409090A GB5507972A GB5507972A GB1409090A GB 1409090 A GB1409090 A GB 1409090A GB 5507972 A GB5507972 A GB 5507972A GB 5507972 A GB5507972 A GB 5507972A GB 1409090 A GB1409090 A GB 1409090A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chromium
- carbon
- black
- composition
- compositions
- 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
Links
- 239000000203 mixture Substances 0.000 title abstract 7
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 title abstract 4
- 229910000423 chromium oxide Inorganic materials 0.000 title abstract 3
- 230000005294 ferromagnetic effect Effects 0.000 title abstract 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- -1 chromium halide Chemical class 0.000 abstract 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 abstract 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 1
- 229910002651 NO3 Inorganic materials 0.000 abstract 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract 1
- 239000006230 acetylene black Substances 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 abstract 1
- 210000000988 bone and bone Anatomy 0.000 abstract 1
- 239000006229 carbon black Substances 0.000 abstract 1
- 229910002090 carbon oxide Inorganic materials 0.000 abstract 1
- 239000003610 charcoal Substances 0.000 abstract 1
- 150000001844 chromium Chemical class 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 239000011651 chromium Substances 0.000 abstract 1
- 229940117975 chromium trioxide Drugs 0.000 abstract 1
- GAMDZJFZMJECOS-UHFFFAOYSA-N chromium(6+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Cr+6] GAMDZJFZMJECOS-UHFFFAOYSA-N 0.000 abstract 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical group [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 abstract 1
- 239000013078 crystal Substances 0.000 abstract 1
- 239000010439 graphite Substances 0.000 abstract 1
- 229910002804 graphite Inorganic materials 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000006233 lamp black Substances 0.000 abstract 1
- 230000005291 magnetic effect Effects 0.000 abstract 1
- XVOFZWCCFLVFRR-UHFFFAOYSA-N oxochromium Chemical compound [Cr]=O XVOFZWCCFLVFRR-UHFFFAOYSA-N 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 239000011541 reaction mixture Substances 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- 229910021653 sulphate ion Inorganic materials 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G37/00—Compounds of chromium
- C01G37/02—Oxides or hydrates thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- 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
- G11B5/70636—CrO2
-
- 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
- H01F1/0302—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity characterised by unspecified or heterogeneous hardness or specially adapted for magnetic hardness transitions
- H01F1/0311—Compounds
- H01F1/0313—Oxidic compounds
-
- 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
- C01P2004/54—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
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- 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
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
-
- 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
-
- 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
- C01P2006/80—Compositional purity
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Power Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Composite Materials (AREA)
- Paints Or Removers (AREA)
- Hard Magnetic Materials (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Soft Magnetic Materials (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
- Magnetic Record Carriers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00212627A US3843403A (en) | 1971-12-27 | 1971-12-27 | Methods of manufacturing ferromagnetic carbon modified chromium oxide and compositions and recording media containing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1409090A true GB1409090A (en) | 1975-10-08 |
Family
ID=22791818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5507972A Expired GB1409090A (en) | 1971-12-27 | 1972-11-29 | Process for producing ferromagnetic chromium oxide compositions and such compositions |
Country Status (10)
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4252758A (en) * | 1979-03-14 | 1981-02-24 | Akira Yamaguchi | Method of Producing a sintered chromium oxide body |
| DE3328719C2 (de) * | 1982-08-10 | 1985-07-25 | Victor Company Of Japan, Ltd., Yokohama, Kanagawa | Magnetisches Aufzeichnungsmaterial |
| JPS6315912U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1986-07-15 | 1988-02-02 | ||
| JPH03123415U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1990-03-28 | 1991-12-16 | ||
| JP7510126B2 (ja) * | 2019-12-18 | 2024-07-03 | トーラスエナジー株式会社 | フェライトコア及びその製造方法 |
-
1971
- 1971-12-27 US US00212627A patent/US3843403A/en not_active Expired - Lifetime
-
1972
- 1972-09-25 IT IT29623/72A patent/IT967820B/it active
- 1972-11-21 NL NL7215715A patent/NL7215715A/xx not_active Application Discontinuation
- 1972-11-22 CH CH1700272A patent/CH580035A5/xx not_active IP Right Cessation
- 1972-11-28 JP JP11861072A patent/JPS5548443B2/ja not_active Expired
- 1972-11-29 GB GB5507972A patent/GB1409090A/en not_active Expired
- 1972-12-05 SE SE7215794A patent/SE387194B/xx unknown
- 1972-12-11 CA CA159,873A patent/CA990062A/en not_active Expired
- 1972-12-21 FR FR7247110A patent/FR2166221B1/fr not_active Expired
- 1972-12-23 ES ES410005A patent/ES410005A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2166221B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1984-02-17 |
| CA990062A (en) | 1976-06-01 |
| NL7215715A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-06-29 |
| JPS5548443B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1980-12-05 |
| FR2166221A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-08-10 |
| US3843403A (en) | 1974-10-22 |
| IT967820B (it) | 1974-03-11 |
| SE387194B (sv) | 1976-08-30 |
| DE2259255A1 (de) | 1973-07-12 |
| JPS4881091A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-10-30 |
| DE2259255B2 (de) | 1975-11-13 |
| CH580035A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1976-09-30 |
| ES410005A1 (es) | 1975-12-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |