Silicon/carbon protection of metallic magnetic structures

Details Silicon/carbon protection of metallic magnetic structures Silicon/carbon protection of metallic magnetic structures

1985-10-31

1987-03-03

Robinson, Ellis P.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

427 39, 427 40, 427 41, 427131, 428336, 428408, 428426, 428446, 428694, 428695, 428900, 428698, G11B 572

Patent

active

046474943

ABSTRACT:
A superior wear-resistant coating is provided for metallic magnetic recording layers, where the improved coating is a hard carbon layer that is strongly bound to the underlying metallic magnetic recording layer by an intermediate layer of silicon. The silicon layer can be very thin, with a minimum thickness of a few atomic layers, and provides strong adhesion between the hard carbon protective layer and the metallic magnetic recording layer. A preferred technique for depositing both the intermediate silicon layer and the hard carbon layer is plasma deposition, since both of these depositions can be performed in the same reactor without breaking vacuum.

REFERENCES:
patent: 4376963 (1983-03-01), Knoop
patent: 4411963 (1983-10-01), Aine
patent: 4503125 (1985-03-01), Nelson
patent: 4554217 (1985-11-01), Grimm

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