Ceramic-metal matrix composites for magnetic disk substrates for

Details Ceramic-metal matrix composites for magnetic disk substrates for Ceramic-metal matrix composites for magnetic disk substrates for

1997-02-04

1999-09-07

Resan, Stevan A.

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428 656, 428332, 428469, 4285395, 428694ST, 428698, 428900, 360135, G11B 582

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active

059484950

ABSTRACT:
A rigid disk substrate for a magnetic recording disk is formed of a ceramic-metal matrix composite. The ceramic-metal matrix composite has a composition ranging from approximately 1 to 40 weight % of ceramic material and 60 to 99 weight % of aluminum or aluminum alloy metal matrix. The ceramic material may be silicon carbide, aluminum oxide, boron carbide, magnesium oxide, silicon oxide, silicon nitride, zirconium oxide, beryllium oxide, titanium boride, titanium carbide, tungsten carbide, or combinations thereof.

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