Substrate material for magnetic head and method for manufacturing the same

Abstract

Disclosed is a substrate material for an AlTiC-based magnetic head, which is excellent in ultra-low flying-related properties as a material for a magnetic head, such as a TPC or AAB type for use as a thin-film magnetic head slider for HDD devices and a thin-film magnetic head for tape recording devices, where a flying height between a magnetic head element and a recording medium is extremely reduced, and usable in perpendicular recording heads, HAMR heads or the like. The magnetic head substrate material consists of a sintered body which contains 10 to 50 mass % of TiCxOyNz (wherein: 0.70≦x<1.0; 0<y≦0.30; 0≦z≦0.1; and 0.70<x+y+z≦1.0) having an NaCl-type crystal structure, with the remainder being α-Al2O3, wherein compounds of Fe, Cr and Co are contained in an amount of no more than 0.02 mass % in total.

Dependencies are inferred from the claim text.