Non-magnetic substrate material and slider assembly for use in f

Details Non-magnetic substrate material and slider assembly for use in f Non-magnetic substrate material and slider assembly for use in f

1996-06-25

1998-05-12

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

G11B 560

Patent

active

057515166

ABSTRACT:
A non-magnetic substrate material Fe.sub.2 O.sub.3 as a major component and 0.1-5 weight %, based on the total amount of the material, of at least one of Nd.sub.2 O.sub.3 and Gd.sub.2 O.sub.3. By adding Nd.sub.2 O.sub.3 and/or Gd.sub.2 O.sub.3, the maximum size of the grains in the material is regulated to 5 .mu.m or less. This improves the CSS characteristics of a flying-type magnetic head made thereof and makes the flying height low and constant.

REFERENCES:
patent: 4636433 (1987-01-01), Kubo et al.
patent: 4673996 (1987-06-01), White

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