Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

G - Physics

11

B

352/31, 117/24.2

G11B 5/66 (2006.01) G11B 5/72 (2006.01) G11B 5/84 (2006.01)

Patent

CA 1307173

-20- ABSTRACT OF THE DISCLOSURE A magnetic recording medium, comprising a non-magnetic substrate, a magnetic recording layer of a ferromagnetic film on the substrate, and a protective layer on the magnetic recording layer. The protective layer is formed of oxide of an alloy of Co and a metal selected from the group consisting of Ti, Zr, Hf, Nb, Ta, Mo, Rh, Pd, and Si. The protective layer is preferably formed by deposition from vapor phase of the metal components constituting the alloy in an oxygen atmosphere under a reduced pressure. The protective layer provides for a durability and corrosion resistance to the magnetic recording medium.

509810

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