Non-magnetic substrate of magnetic head

Details Non-magnetic substrate of magnetic head Non-magnetic substrate of magnetic head

1991-12-11

1993-09-07

Group, Karl

Compositions: ceramic

Ceramic compositions

501 94, 501103, 501105, C04B 3500

Patent

active

052428656

ABSTRACT:
A non-magnetic substrate for use in a magnetic head, consists of the basic composition consisting of CoO and NiO or NiO, and (a) from 0.1 to 7% by weight of ZrO.sub.2 and HfO.sub.2 based on 100% of the basic composition, or (b) from 0.1 to 7% by weight of ZrO.sub.2, and from 0.1 to 2% by weight of Al.sub.2 O.sub.3. Cracking of the magnetic-layer structure is prevented.

REFERENCES:
patent: 4540638 (1985-09-01), Sakakitnara et al.
patent: 5089196 (1992-02-01), Itoh et al.
Boskovic et al, Transactions J. British Ceramics Soc., 75 No. 5, pp. 107-112 (Sep. 1976).

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