Composite structure and method and apparatus for manufacture thereof

摘要

A method is provided for manufacturing a composite structure body on a substrate surface, the structure having excellent chemical properties such as corrosion resistance and the like. The method includes bombarding fine particles of more than one type of brittle material against a surface of a substrate at high velocity to form an anchor portion biting said substrate surface and such that the fine particles of the brittle materials are simultaneously distorted or fractured by impact of the bombardment; and forming a structure body in which the crystals and/or microstructures of the brittle materials are dispersed above said anchor portion through mutual rejoining of the brittle material fine particles via an intermediary of a newly generated active surface formed by the distortion or fracture.