JPS57152520A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS57152520A JPS57152520A JP56038952A JP3895281A JPS57152520A JP S57152520 A JPS57152520 A JP S57152520A JP 56038952 A JP56038952 A JP 56038952A JP 3895281 A JP3895281 A JP 3895281A JP S57152520 A JPS57152520 A JP S57152520A
- Authority
- JP
- Japan
- Prior art keywords
- naphthol
- thin film
- consisting essentially
- corrosion inhibitors
- nonmagnetic
- 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
- KJCVRFUGPWSIIH-UHFFFAOYSA-N 1-naphthol Chemical compound C1=CC=C2C(O)=CC=CC2=C1 KJCVRFUGPWSIIH-UHFFFAOYSA-N 0.000 abstract 6
- 230000007797 corrosion Effects 0.000 abstract 3
- 238000005260 corrosion Methods 0.000 abstract 3
- 239000010409 thin film Substances 0.000 abstract 3
- JWAZRIHNYRIHIV-UHFFFAOYSA-N 2-naphthol Chemical compound C1=CC=CC2=CC(O)=CC=C21 JWAZRIHNYRIHIV-UHFFFAOYSA-N 0.000 abstract 2
- 230000005294 ferromagnetic effect Effects 0.000 abstract 2
- 239000003112 inhibitor Substances 0.000 abstract 2
- RMSOEGBYNWXXBG-UHFFFAOYSA-N 1-chloronaphthalen-2-ol Chemical compound C1=CC=CC2=C(Cl)C(O)=CC=C21 RMSOEGBYNWXXBG-UHFFFAOYSA-N 0.000 abstract 1
- SSHIVHKMGVBXTJ-UHFFFAOYSA-N 1-nitronaphthalen-2-ol Chemical compound C1=CC=CC2=C([N+]([O-])=O)C(O)=CC=C21 SSHIVHKMGVBXTJ-UHFFFAOYSA-N 0.000 abstract 1
- HVLJEMXDXOTWLV-UHFFFAOYSA-N 2,4-dichloronaphthalen-1-ol Chemical compound C1=CC=C2C(O)=C(Cl)C=C(Cl)C2=C1 HVLJEMXDXOTWLV-UHFFFAOYSA-N 0.000 abstract 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 229950011260 betanaphthol Drugs 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
- 150000004780 naphthols Chemical class 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000002356 single layer Substances 0.000 abstract 1
- 238000004544 sputter deposition Methods 0.000 abstract 1
- 229910001220 stainless steel Inorganic materials 0.000 abstract 1
- 239000010935 stainless steel Substances 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
Abstract
PURPOSE:To improve corrosion resistance at high humidity by sticking corrosion inhibitors, consisting essentially of naphthol, etc., to a ferromagnetic metallic thin film. CONSTITUTION:On a nonmagnetic substrate made of a metallic plate such as a stainless steel plate, 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., slanting vertical columnar crystal and also contains oxygen by 3-45 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 naphthol, etc., are used for it. As naphthol, pure naphthol such as alpha-naphthol and beta-naphthol, and halogen-substituted naphthol, e.g., 1-chloro-2-naphthol, 2,4-dichloro-1-naphthol, 1-nitro-2-naphthol, etc., are usable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56038952A JPS57152520A (en) | 1981-03-17 | 1981-03-17 | Magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56038952A JPS57152520A (en) | 1981-03-17 | 1981-03-17 | Magnetic recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57152520A true JPS57152520A (en) | 1982-09-20 |
| JPH0239017B2 JPH0239017B2 (en) | 1990-09-03 |
Family
ID=12539529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56038952A Granted JPS57152520A (en) | 1981-03-17 | 1981-03-17 | Magnetic recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57152520A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2558631A1 (en) * | 1984-01-20 | 1985-07-26 | Sony Corp | MAGNETIC RECORDING MEDIUM |
-
1981
- 1981-03-17 JP JP56038952A patent/JPS57152520A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2558631A1 (en) * | 1984-01-20 | 1985-07-26 | Sony Corp | MAGNETIC RECORDING MEDIUM |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0239017B2 (en) | 1990-09-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5615014A (en) | Metallic thin film type magnetic recording medium | |
| JPS5798133A (en) | Magnetic recording medium | |
| JPS57183004A (en) | Magnetically recording medium | |
| JPS57152517A (en) | Magnetic recording medium | |
| JPS57152520A (en) | Magnetic recording medium | |
| JPS57152521A (en) | Magnetic recording medium | |
| JPS57152518A (en) | Magnetic recording medium | |
| JPS57152519A (en) | Magnetic recording medium | |
| JPS5755531A (en) | Vertical magnetic recording medium | |
| JPS57200945A (en) | Magnetic recording medium | |
| JPS54140505A (en) | Production of magnetic recording medium | |
| JPH0647722B2 (en) | Method of manufacturing magnetic recording medium | |
| JPS57138035A (en) | Magnetic recording medium | |
| JPS5724022A (en) | Production of magnetic recording substance | |
| JPS58222441A (en) | Magnetic recording medium | |
| JPS57113417A (en) | Magnetic recording medium | |
| JPS58194135A (en) | Magnetic recording medium | |
| Lyakhovich et al. | Optimal texture of magnetic recording media | |
| JPS58194133A (en) | Magnetic recording medium | |
| Flur | On the magnetic properties of sputtered NIFe films | |
| JPS57147130A (en) | Magnetic recording medium | |
| JPS578920A (en) | Thin metallic film type magnetic recording medium | |
| JPS5647925A (en) | Magnetic recording medium | |
| JPS63124213A (en) | Perpendicular magnetic recording medium | |
| JPS57120227A (en) | Magnetic recording medium |