Magnetic recording medium having an amorphous, nonmagnetic nicke

Details Magnetic recording medium having an amorphous, nonmagnetic nicke Magnetic recording medium having an amorphous, nonmagnetic nicke

1986-05-15

1988-04-05

Lesmes, George F.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

428457, 428694, 428704, 428900, H01F 1026

Patent

active

047358530

ABSTRACT:
Disclosed is a magnetic recording medium in which an underlayer formed below a magnetic medium, in which a signal is written, is composed of a nickel alloy comprising 0.05 to 10 atom % of tungsten and 14 to 30 atom % of phosphorus. In this magnetic recording medium, the temperature for formation of magnetic medium and the temperature for formation of a protective film can be elevated over the levels adopted in the conventional techniques. Therefore, the magnetic characteristics and abrasion resistance can be improved. Furthermore, the magnetic recording medium is excellent in the mechanical strength and corrosion resistance. Accordingly, the reliability of the magnetic medium can be highly improved.

REFERENCES:
patent: 4224381 (1980-09-01), Patel et al.
patent: 4410603 (1983-10-01), Yamamori et al.
patent: 4603091 (1986-07-01), Mukasa et al.
patent: 4621030 (1986-11-01), Uesaka et al.

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