Process for production of magnetic recording medium

Details Process for production of magnetic recording medium Process for production of magnetic recording medium

1980-02-25

1982-10-19

Pianalto, Bernard D.

Chemistry: electrical and wave energy

Processes and products

Vacuum arc discharge coating

427 38, 427 39, 427 40, 427 42, 427 48, 427128, 427132, 427250, 427255, 4272553, 427295, 427296, C23C 1500

Patent

active

043549098

ABSTRACT:
A magnetic recording medium comprising a non-magnetic substrate such as polyethylene terephthalate film, and deposited on the surface of the substrate by an ionized cluster beam deposition method, at least one ferro-magnetic material selected from the group consisting of cobalt, cobalt-containing alloys, mixtures of cobalt with other elements, and chromium dioxide; and a process for production thereof. The magnetic recording medium is characterized by having superior magnetic properties, especially superior coercive force, residual magnetic flux density and squareness ratio, and high mechanical strength.

REFERENCES:
patent: 4152478 (1979-05-01), Takagi
patent: 4226681 (1980-10-01), Shirahata et al.

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