Magnetic recording medium containing iron carbide

Details Magnetic recording medium containing iron carbide Magnetic recording medium containing iron carbide

1986-10-01

1988-05-31

Robinson, Ellis P.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

252 6254, 427128, 428694, 428900, 428329, 428698, G11B 5714

Patent

active

047480807

ABSTRACT:
A magnetic recording medium containing iron carbide is disclosed. Iron carbide shows electric conductivity and low light transmission. Therefor an antistatic property and light shielding ability of the medium are improved. Iron carbide is contained in the magnetic layer of the medium in combined with the other ferromagnetic materials such as Co-adhered-.gamma.-Fe.sub.2 O.sub.3 or hexagonal ferrite. An amount of iron carbide in the magnetic layer is within the range of from 1.5 to 15% of the magnetic layer by volume.

REFERENCES:
patent: 4137361 (1979-01-01), Deffeyes
patent: 4218507 (1980-08-01), Deffeyes
patent: 4347165 (1982-08-01), Matheson
patent: 4554217 (1985-11-01), Grimm
patent: 4632866 (1986-12-01), Kubota

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