DIAMOND-COATED MEMBER

摘要

A diamond-coated member composing a ceramic base material containing on its surface columnar particles with a minor diameter of 0.2 to 1 mu m and an aspect ratio of 2 or above at a surface density of 30% or above and a diamond coating formed thereon. Since the adhesion of the coating to the base mterial is remarkably high, the diamond-coated member has an excellent durability and can be suitably used in cutting tools and so on.