Composite materials, is composed of two or more different types of materials, by physical or chemical methods, at the macro (micro) formed on the material with new properties. Learn from each other in the performance of various materials, create synergies, so that the overall performance is better than the original composition of the composite materials and meet a variety of requirements. Composite matrix material is divided into two large categories of metallic and non-metallic. Metal commonly used are aluminium, magnesium, copper, titanium and their alloys. Non-metallic substrates are mainly synthetic resins, rubber, ceramics, graphite, carbon, etc. Reinforcements mainly glass, carbon and boron fibers, aramid fibers, silicon carbide fibers, asbestos fibres, whiskers, wires and hard fine grain, and so on.