Method for making magnetic recording media

Details Method for making magnetic recording media Method for making magnetic recording media

1990-12-27

1991-12-03

Pianalto, Bernard

Coating processes

Magnetic base or coating

Magnetic coating

427131, 427132, H01F 1002

Patent

active

050699334

ABSTRACT:
A method for making a magnetic recording medium comprises the steps of forming a thin ferromagnetic metal film on a non-magnetic substrate. The thin ferromagnetic metal film contains Co as a main constituent and contains oxygen in a proportion of at least 15 at %. Thereafter, the thin ferromagnetic metal film is exposed to an ozone-containing atmosphere. A magnetic recording medium is thereby obtained, which exhibits excellent resistance to corrosion with salts and good electromagnetic transducing characteristics.

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