Amorphous magnetic alloy of Co-Nb-Zr system and magnetic head ma

Details Amorphous magnetic alloy of Co-Nb-Zr system and magnetic head ma Amorphous magnetic alloy of Co-Nb-Zr system and magnetic head ma

1988-07-12

1990-11-20

Sheehan, John P.

Dynamic magnetic information storage or retrieval

Head

Core

360126, 148304, 148403, 420435, G11B 5235

Patent

active

049722859

ABSTRACT:
An amorphous magnetic alloy of Co-Nb-Zr system contains Co, Nb and Zr and has a composition which falls, in terms of atomic percent, within the region defined by straight lines connecting, in a ternary composition diagram assuming the total of contents of these three elements to be 100, a point (81% Co, 14% Nb, 5 Zr), a point (88% Co, 9% Nb, 3% Zr), a point (86.5% Co, 12.5% Nb, 1% Zr) and a point (81% Co, 18% Nb, 1% Zr). Disclosed also is a magnetic head having a core at least a part of which is constituted by this amorphous magnetic alloy. This magnetic head, when used in combination with a metal powder tape having a high coercive force, provides a remarkably increased recording-reproducing output.

REFERENCES:
patent: 4437912 (1984-03-01), Sakakima et al.
patent: 4488195 (1984-12-01), Yanagiuchi et al.
patent: 4578728 (1986-03-01), Sakakima et al.

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