Patent ID: 7338724
Filing Date: 2008-03-04
Classification: C23C,Y10T

Abstract:
1. A composite structure body which is obtained through the following processes: forming composite fine particles by way of a process in which a surface of brittle material fine particles is coated with at least one type of ductile material; then by bombarding said composite fine particles against a surface of a substrate with high velocity, to form an anchor portion biting said substrate surface; said composite fine particles are simultaneously distorted and fractured by impact of the bombardment; mutual rejoining of said composite fine particles is made through intermediary of a newly generated active surface formed by the distortion or fracture; and thereby forming a structure body, above said anchor portion, in which crystals of the brittle material and crystals and/or microstructures of the ductile material fine particles are dispersed; wherein the composite structure body is formed through a further process of imparting internal distortion to said brittle material fine particles, as the pre-processing prior to bombarding the particles against the substrate surface.