Method for manufacturing a magnetic recording medium

Details Method for manufacturing a magnetic recording medium Method for manufacturing a magnetic recording medium

1992-03-17

1993-12-21

Pianalto, Bernard

Coating processes

Spray coating utilizing flame or plasma heat

Metal oxide containing coating

427128, 427576, H01F 1002

Patent

active

052719669

ABSTRACT:
A magnetic film for recording a magnetic signal is formed on a surface of a base piece. The magnetic film contains Fe.sub.3 O.sub.4 of at least 30 wt %, preferably at least 75 wt %. For forming the magnetic film, a plasma spraying method is employed, in which an iron oxide (FeOx) is used for a thermal spraying powder, and a non-reducing gas is used as a working medium for the plasma spraying.

REFERENCES:
patent: 3576672 (1971-04-01), Harris et al.

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