JPS57152519A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS57152519A JPS57152519A JP56038951A JP3895181A JPS57152519A JP S57152519 A JPS57152519 A JP S57152519A JP 56038951 A JP56038951 A JP 56038951A JP 3895181 A JP3895181 A JP 3895181A JP S57152519 A JPS57152519 A JP S57152519A
- Authority
- JP
- Japan
- Prior art keywords
- thin film
- cresol
- ferromagnetic
- alkylphenol
- film
- 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.)
- Granted
Links
- 230000005291 magnetic effect Effects 0.000 title abstract 2
- 239000010409 thin film Substances 0.000 abstract 5
- 230000005294 ferromagnetic effect Effects 0.000 abstract 4
- 230000007797 corrosion Effects 0.000 abstract 3
- 238000005260 corrosion Methods 0.000 abstract 3
- 239000003112 inhibitor Substances 0.000 abstract 3
- -1 alkyl phenol Chemical compound 0.000 abstract 2
- RLSSMJSEOOYNOY-UHFFFAOYSA-N m-cresol Chemical compound CC1=CC=CC(O)=C1 RLSSMJSEOOYNOY-UHFFFAOYSA-N 0.000 abstract 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 abstract 1
- 125000000217 alkyl group Chemical group 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 239000013078 crystal Substances 0.000 abstract 1
- 229910001882 dioxygen Inorganic materials 0.000 abstract 1
- 238000007733 ion plating Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000002985 plastic film Substances 0.000 abstract 1
- 229920006255 plastic film Polymers 0.000 abstract 1
- 239000002356 single layer Substances 0.000 abstract 1
- 238000004544 sputter deposition Methods 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- 238000007740 vapor deposition Methods 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
- G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
- G11B5/65—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
- G11B5/658—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition containing oxygen, e.g. molecular oxygen or magnetic oxide
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Magnetic Record Carriers (AREA)
Abstract
PURPOSE:To improve corrosion resistance at high humidity by sticking corrosion inhibitors, consisting essentially of alkylphenol, to a ferromagnetic metallic thin film. CONSTITUTION:On a nonmagnetic substrate made of a plastic film, etc., a single- layer or multilayer ferromagnetic thin film which consists essentially of 0.05- 0.5mum thickness Co, Fe, Fe and Ni, Co and Ni, Fe and Co, Fe, Ni and Co, etc., of slanting or vertical columnar crystal and also contains oxygen by 3-45 atomic percent of magnetic metal is formed under vacuum and in the presence of a small amount of oxygen gas by vapor deposition, sputtering, ion plating, etc., directly or with a nonmagnetic thin-film layer between, and corrosion inhibitors consisting essentially of alkyl phenol are used for it. As alkylphenol, an alkyl substitute of univalent phenol, e.g., O-cresol, m-cresol, P-cresol, etc., are usable. Those inhibitors are allowed to exit in contact with at least the surface of the ferromagnetic thin film and, if possible, inside or in contact with the interface of the base where the ferromagnetic thin film is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56038951A JPS57152519A (en) | 1981-03-17 | 1981-03-17 | Magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56038951A JPS57152519A (en) | 1981-03-17 | 1981-03-17 | Magnetic recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57152519A true JPS57152519A (en) | 1982-09-20 |
| JPH0239016B2 JPH0239016B2 (en) | 1990-09-03 |
Family
ID=12539501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56038951A Granted JPS57152519A (en) | 1981-03-17 | 1981-03-17 | Magnetic recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57152519A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS515243A (en) * | 1974-05-30 | 1976-01-16 | Cooper & Co Ltd Edwin | |
| JPS5120805A (en) * | 1974-08-13 | 1976-02-19 | Fuji Photo Film Co Ltd | JIKIDEISUKUGATAKIROKUUTAI |
-
1981
- 1981-03-17 JP JP56038951A patent/JPS57152519A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS515243A (en) * | 1974-05-30 | 1976-01-16 | Cooper & Co Ltd Edwin | |
| JPS5120805A (en) * | 1974-08-13 | 1976-02-19 | Fuji Photo Film Co Ltd | JIKIDEISUKUGATAKIROKUUTAI |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0239016B2 (en) | 1990-09-03 |
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