Non-conductive aluminum oxide-titanium carbide (A1203-TIC) thin

Details Non-conductive aluminum oxide-titanium carbide (A1203-TIC) thin Non-conductive aluminum oxide-titanium carbide (A1203-TIC) thin

1993-04-23

1995-05-09

Turner, A. A.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

360122, 501 87, 428212, 428698, 428701, 428702, I04B 3556

Patent

active

054138507

ABSTRACT:
An electrically non-conductive Al.sub.2 O.sub.3 --TiC thin film computer head substrate, exhibiting improved edge retention during precision machining, is formed from a mixture of Al.sub.2 O.sub.3 and TiC, where the TiC content in the final microstructure is less than about 18 weight percent and which is produced from TiC having a surface to volume mean diameter of about 2-10 micrometers. A thin film computer head substrate made from such a material, and sliders incorporating the substrate, exhibit significantly improved surface stability and diceability due to the exclusion of third-phase thermally-elastically mismatched dispersoids.

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