GB1378371A - Process for producing ferromagnetic chromium dioxide - Google Patents
Process for producing ferromagnetic chromium dioxideInfo
- Publication number
- GB1378371A GB1378371A GB5787771A GB5787771A GB1378371A GB 1378371 A GB1378371 A GB 1378371A GB 5787771 A GB5787771 A GB 5787771A GB 5787771 A GB5787771 A GB 5787771A GB 1378371 A GB1378371 A GB 1378371A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chromium dioxide
- chromium
- ferromagnetic chromium
- dioxide
- producing ferromagnetic
- 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
- 229940090961 chromium dioxide Drugs 0.000 title abstract 5
- IAQWMWUKBQPOIY-UHFFFAOYSA-N chromium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Cr+4] IAQWMWUKBQPOIY-UHFFFAOYSA-N 0.000 title abstract 5
- AYTAKQFHWFYBMA-UHFFFAOYSA-N chromium(IV) oxide Inorganic materials O=[Cr]=O AYTAKQFHWFYBMA-UHFFFAOYSA-N 0.000 title abstract 5
- 230000005294 ferromagnetic effect Effects 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 abstract 2
- 229910052804 chromium Inorganic materials 0.000 abstract 2
- 239000011651 chromium Substances 0.000 abstract 2
- 235000010724 Wisteria floribunda Nutrition 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
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
- G11B5/70626—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
-
- 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
-
- 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
- C01P2006/32—Thermal 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
- C01P2006/42—Magnetic properties
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Hard Magnetic Materials (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Magnetic Record Carriers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP45110489A JPS4828277B1 (enExample) | 1970-12-14 | 1970-12-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1378371A true GB1378371A (en) | 1974-12-27 |
Family
ID=14537022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5787771A Expired GB1378371A (en) | 1970-12-14 | 1971-12-13 | Process for producing ferromagnetic chromium dioxide |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3787564A (enExample) |
| JP (1) | JPS4828277B1 (enExample) |
| CA (1) | CA957483A (enExample) |
| DE (1) | DE2161660A1 (enExample) |
| GB (1) | GB1378371A (enExample) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4045544A (en) * | 1976-08-31 | 1977-08-30 | E. I. Du Pont De Nemours And Company | Process for the preparation of ferromagnetic chromium dioxide |
-
1970
- 1970-12-14 JP JP45110489A patent/JPS4828277B1/ja active Pending
-
1971
- 1971-12-09 CA CA12970223-233A patent/CA957483A/en not_active Expired
- 1971-12-11 DE DE19712161660 patent/DE2161660A1/de active Pending
- 1971-12-13 GB GB5787771A patent/GB1378371A/en not_active Expired
- 1971-12-14 US US00207995A patent/US3787564A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4828277B1 (enExample) | 1973-08-30 |
| US3787564A (en) | 1974-01-22 |
| CA957483A (en) | 1974-11-12 |
| DE2161660A1 (de) | 1972-06-22 |
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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 |