JPS641116A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS641116A JPS641116A JP15534687A JP15534687A JPS641116A JP S641116 A JPS641116 A JP S641116A JP 15534687 A JP15534687 A JP 15534687A JP 15534687 A JP15534687 A JP 15534687A JP S641116 A JPS641116 A JP S641116A
- Authority
- JP
- Japan
- Prior art keywords
- film
- corrosion
- resistance
- cobalt
- wear
- 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.)
- Pending
Links
Landscapes
- Magnetic Record Carriers (AREA)
Abstract
PURPOSE: To improve resistance to erosion, corrosion and wear by providing a film for suppressing deposition of cobalt on the surface of a magnetic film and providing a protective film on the surface of this film.
CONSTITUTION: A vapor deposited CoNi film is formed on one face of a base film 10. The film 12 for suppressing the deposition of Co is then formed on this film 11. A passivated film is also usable as the film 12. The passivated film includes the layers contg. tervalent or higher valency oxides or hydrous oxides of cobalt; for example, Co3O4, Co2O3, Co3O4.nH2O or Co2O3.nH2O. The protective film 13 essentially consisting of Ni is further formed on the surface of such film 11. Since the Ni is superior in corrosion resistance to the Co, the protective film effective to corrosive gases is obtd. The resistance to corrosion and wear is thus improved.
COPYRIGHT: (C)1989,JPO&Japio
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15534687A JPS641116A (en) | 1987-06-24 | 1987-06-24 | Magnetic recording medium |
EP88300103A EP0274437B1 (en) | 1987-01-07 | 1988-01-07 | Magnetic recording medium |
DE3888984T DE3888984T2 (en) | 1987-01-07 | 1988-01-07 | Magnetic record carrier. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15534687A JPS641116A (en) | 1987-06-24 | 1987-06-24 | Magnetic recording medium |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH011116A JPH011116A (en) | 1989-01-05 |
JPS641116A true JPS641116A (en) | 1989-01-05 |
Family
ID=15603881
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15534687A Pending JPS641116A (en) | 1987-01-07 | 1987-06-24 | Magnetic recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS641116A (en) |
-
1987
- 1987-06-24 JP JP15534687A patent/JPS641116A/en active Pending
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