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Magnetic Recording Media with Protective Overcoat

IP.com Disclosure Number: IPCOM000095210D
Original Publication Date: 1965-Oct-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

McCune, HA: AUTHOR [+2]

Abstract

Magnetic recording media are subjected to conditions of considerable hard wear. Wear causes damage to the recording media and concurrently, destroys information carried by the media.

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Magnetic Recording Media with Protective Overcoat

Magnetic recording media are subjected to conditions of considerable hard wear. Wear causes damage to the recording media and concurrently, destroys information carried by the media.

Protection can be imparted to the media by placing a protective overcoat upon the magnetic surface. One such protective overcoat can consist of a silicate, such as potassium silicate. Such an overcoat is formed by the immersion of the media in an aqueous solution of silicate.

As an alternative, a metallic overcoat of nickel can be placed upon the magnetic surface of the media. Such an overcoat is formed by the thermal decomposition of nickel carbonyl at the surface of the media.

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