Composite magnetic disk with Si and SiC substrate

Details Composite magnetic disk with Si and SiC substrate Composite magnetic disk with Si and SiC substrate

1984-05-22

1986-07-01

Robinson, Ellis P.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

360135, 427128, 427131, 427130, 428367, 428408, 428413, 428416, 428418, 428419, 428694, 428698, 428446, 428900, G11B 564

Patent

active

045980179

ABSTRACT:
The invention relates to a composite magnetic disk for magnetic recording, which consists of an annular core of polymeric material to which is bonded at least one disk of reaction-bonded silicon carbide with a magnetic recording layer on its outer surface. After its processing, the SiSiC disk surface shows optimum planarity and smoothness so that it can be used as a magnetic disk substrate. Furthermore, the material has a low density and an extremely high specific modulus of elasticity so that numbers of revolution higher than obtainable with formerly known AlMg5 disk substrates can be reached.

REFERENCES:
patent: 3959553 (1976-05-01), Hartmann
patent: 4069360 (1978-01-01), Yanaisawa
patent: 4376963 (1983-03-01), Knoop
patent: 4489129 (1984-12-01), Shue
patent: 4499122 (1985-02-01), Economy
patent: 4536449 (1985-08-01), Kennedy

Affiliated with

Also associated with

Rating

Composite magnetic disk with Si and SiC substrate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Composite magnetic disk with Si and SiC substrate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Composite magnetic disk with Si and SiC substrate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1082301