JPS6448221A - Magnetic disk and its production - Google Patents
Magnetic disk and its productionInfo
- Publication number
- JPS6448221A JPS6448221A JP20411987A JP20411987A JPS6448221A JP S6448221 A JPS6448221 A JP S6448221A JP 20411987 A JP20411987 A JP 20411987A JP 20411987 A JP20411987 A JP 20411987A JP S6448221 A JPS6448221 A JP S6448221A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- thin
- film layer
- protective
- 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.)
- Pending
Links
- 239000010408 film Substances 0.000 abstract 7
- 239000010410 layer Substances 0.000 abstract 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 4
- 230000001681 protective effect Effects 0.000 abstract 4
- 239000010409 thin film Substances 0.000 abstract 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 2
- CXOWYMLTGOFURZ-UHFFFAOYSA-N azanylidynechromium Chemical compound [Cr]#N CXOWYMLTGOFURZ-UHFFFAOYSA-N 0.000 abstract 2
- 229910021387 carbon allotrope Inorganic materials 0.000 abstract 2
- 229910052739 hydrogen Inorganic materials 0.000 abstract 2
- 239000001257 hydrogen Substances 0.000 abstract 2
- 229910052757 nitrogen Inorganic materials 0.000 abstract 2
- 238000007747 plating Methods 0.000 abstract 2
- 229910018104 Ni-P Inorganic materials 0.000 abstract 1
- 229910018536 Ni—P Inorganic materials 0.000 abstract 1
- 230000001050 lubricating effect Effects 0.000 abstract 1
- 238000003754 machining Methods 0.000 abstract 1
- 239000011241 protective layer Substances 0.000 abstract 1
- 230000003252 repetitive effect Effects 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- 230000003746 surface roughness Effects 0.000 abstract 1
Landscapes
- Lubricants (AREA)
- Magnetic Record Carriers (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Abstract
PURPOSE:To prevent the sticking or fixing to a magnetic head in high-humidity environment by forming a thin film consisting of carbon allotrope contg. hydrogen and nitrogen on a thin chromium nitride film layer formed on the surface of a thin magnetic film layer, thereby constituting a lubricating protective layer having a two-layered structure. CONSTITUTION:An Ni-P plating underlying layer 2 is formed on a substrate 1 and the surface of this plating underlying layer 2 is finished by machining to a high-accuracy specular face of 0.003mum Ra surface roughness. The thin magnetic film layer 3, the hard thin film layer (1st protective film) 4 consisting of chromium nitride to form the protective film having the two-layered structure and the dense thin film layer (2nd protective film) 5 consisting of the carbon allotrope contg. hydrogen and nitrogen are thereafter formed. The adhesiveness of the protective films is thereby improved and the coefft. of friction is extremely lowered in spite of repetitive use. Generation of head sticking is substantially obviated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20411987A JPS6448221A (en) | 1987-08-19 | 1987-08-19 | Magnetic disk and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20411987A JPS6448221A (en) | 1987-08-19 | 1987-08-19 | Magnetic disk and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6448221A true JPS6448221A (en) | 1989-02-22 |
Family
ID=16485131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20411987A Pending JPS6448221A (en) | 1987-08-19 | 1987-08-19 | Magnetic disk and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6448221A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01320622A (en) * | 1988-06-23 | 1989-12-26 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
| USRE37681E1 (en) * | 1994-07-01 | 2002-04-30 | Kabushiki Kaisha Kobe Seiko Sho | Filter member and screen changer for use in resin extruder |
-
1987
- 1987-08-19 JP JP20411987A patent/JPS6448221A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01320622A (en) * | 1988-06-23 | 1989-12-26 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
| USRE37681E1 (en) * | 1994-07-01 | 2002-04-30 | Kabushiki Kaisha Kobe Seiko Sho | Filter member and screen changer for use in resin extruder |
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