Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1996-01-29

1996-12-03

Wyszomierski, George

Metal treatment

Stock

Magnetic

148309, 148311, 420 83, H01F 1055

Patent

active

055803997

ABSTRACT:
In a magnetic recording medium of the coating type using a metal magnetic powder, for the purpose of improving switching field distribution (SFD) and electromagnetic properties, there is used a metal magnetic powder based on iron and containing Al and/or Si and a rare earth element, the content of Al and/or Si being 0.5 to 8% by weight based on the iron and the content of rare earth element (inclusive of Y) being 1 to 10% by weight based on the iron, and optionally 6 to 30% by weight of Co, preferably having a length of 0.06 to 0.30 .mu.m and an aspect ratio of from 4 to 15.

REFERENCES:
patent: 4671828 (1987-06-01), Yamauchi et al.
patent: 4683012 (1987-07-01), Yamauchi et al.
patent: 5135584 (1992-08-01), Fujiwara
patent: 5156922 (1992-10-01), Mishima et al.
patent: 5466306 (1995-11-01), Mishima et al.

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