Magnetic alloys for magnetic head

Details Magnetic alloys for magnetic head Magnetic alloys for magnetic head

1989-08-16

1990-11-13

Morris, Theodore

Metal treatment

Stock

Magnetic

148307, 420128, 252 6256, C22C 3800

Patent

active

049699628

ABSTRACT:
Novel magnetic alloys for magnetic heads are provided and are broadly of the formula, Fe-O-N. In a more specific embodiment, the alloys are of the compositional formula, Fe.sub.v N.sub.w O.sub.x M.sub.y, wherein M represents a member selected from the group consisting of Ta, Nb, Si and mixtures thereof, and v, w, x and y are, respectively, such values by atomic percent that 1.ltoreq.w.ltoreq.20, 1.ltoreq.x.ltoreq.20 and 0.5.ltoreq.y.ltoreq.6 provided that v+w+x+y=100. These alloys may further comprise at least one element of the platinum group or of group VIa of the periodic table in an amount of from 0.3 to 3 atomic percent in total so that their resistance to corrosion is improved.

REFERENCES:
patent: 4439251 (1984-03-01), Shimoyama et al.
patent: 4748000 (1988-05-01), Hayashi et al.
patent: 4762755 (1988-08-01), Shiiki et al.
Kijima et al., "Structural and Soft Magnetic Properties of Nitrogen Added Iron Film Prepared by Sputter--Deposition", Information Systems Research Center, Sony Corp., vol. 12, No. 2, 1988.
Arai et al., "Magnetic Properties of Fe--Si Thin Films Sputtered in Mixed Gas Atmosphere", Res. Inst. of Elect. Comm., Tohoku Unive., 2--1--1 Katahira, Sandai 980, 1989.

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