Substrate materials for magnetic heads with low flying height

Details Substrate materials for magnetic heads with low flying height Substrate materials for magnetic heads with low flying height

1995-05-04

1997-01-21

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Carbide or oxycarbide containing

501 96, 501 98, C04B 3556, C04B 3558

Patent

active

055959466

ABSTRACT:
Substrate materials for magnetic heads consisting of 24-75 mol % of .alpha.-Al.sub.2 O.sub.3 and the remaining 76-25 mol % of TiC.sub.X O.sub.Y N.sub.Z, or TiC.sub.X O.sub.Y N.sub.Z containing a small amount of additives, that has a NaCl-type structure which retain known characteristics required on such materials and have controlled sizes of crystallites of Al.sub.2 O.sub.3 and TiC.sub.X O.sub.Y N.sub.Z, uniformly dispersed TiC.sub.X O.sub.Y N.sub.Z crystallites and, if any, additive elements, in which internal stress is relieved. The materials are intended for eliminating problems in machining to form steps and thus for fabricating high-precision thin-film heads for high-density recording.

REFERENCES:
patent: 4356272 (1982-10-01), Kanemitsu et al.
patent: 4582812 (1986-04-01), Furukawa et al.
patent: 5188908 (1993-02-01), Nishiyama et al.
patent: 5376466 (1994-12-01), Koyama et al.
patent: 5476530 (1995-12-01), Gries et al.
patent: 5520716 (1996-05-01), Takagi et al.

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