Substrate materials for magnetic heads with low flying height

摘要

Substrate materials for magnetic heads consisting of 24-75 mol % of alpha -Al2O3 and the remaining 76-25 mol % of TiCXOYNZ, or TiCXOYNZ 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 Al2O3 and TiCXOYNZ, uniformly dispersed TiCXOYNZ 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.