Non-magnetic part in magnetic head assembly

Details Non-magnetic part in magnetic head assembly Non-magnetic part in magnetic head assembly

1985-04-18

1987-05-19

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Head

Head surface structure

360118, 360125, 360110, G11B 5187, G11B 5127

Patent

active

046672591

ABSTRACT:
A non-magnetic part bonded to a magnetic core portion made of Ni-Zn ferrite in a magnetic head assembly which is made of a ceramic material comprised of 30 to 50 volume % of TiO.sub.2 and 70 to 50 volume % of Ba.sub.2 Ti.sub.9 O.sub.20 and BaAl.sub.2 Ti.sub.5 O.sub.14 wherein the volume ratio of Ba.sub.2 Ti.sub.9 O.sub.20 to the total volume of Ba.sub.2 Ti.sub.9 O.sub.20 and BaAl.sub.2 Ti.sub.5 O.sub.14 is 0.05 to 0.5.

REFERENCES:
patent: 3819990 (1974-06-01), Hayashi et al.
patent: 3846840 (1974-11-01), Childers et al.
patent: 4055438 (1977-10-01), Wada et al.
patent: 4222783 (1980-09-01), Atsumi et al.
patent: 4392167 (1983-07-01), Joormann
patent: 4406722 (1983-09-01), Chow et al.
patent: 4430440 (1984-02-01), Wada et al.
patent: 4443825 (1984-04-01), Wank
Secrist et al., Ceramic Material for Recording Heads, vol. 12, No. 6, Nov. 1969, IBM.

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