Acicular alloy containing magnetic recording medium

Details Acicular alloy containing magnetic recording medium Acicular alloy containing magnetic recording medium

1992-01-24

1993-10-12

Resan, Stevan A.

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

428323, 428328, 428329, 428336, 428403, 428694B, 428900, 428694MT, 252 6255, G11B 500

Patent

active

052523802

ABSTRACT:
An acicular alloy base magnetic powder comprising iron and cobalt, which has an average particle long axis size of not larger than 0.25 .mu.m, an axial ratio of from 4 to 8, a cobalt content of from 8 to 50% by weight based on the weight of iron and saturation magnetization of at least 120 emu/g after being kept standing at the temperature of 60.degree. C. and relative humidity of 90% for a week, which has improved corrosion resistance and can provide a magnetic recording medium suitable for recording in the short wavelength range.

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patent: 5151115 (1992-09-01), Tamai

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