A technique has been resulted successfully in which Al coating on the surface of fiber reinforced plastics composite (FRP) material are prepared. At first we use magnetron sputtered ion plating (MSIP) depositing several minutes. And then stoping negative bias, we only use magnetron sputtering (MS) depositing film until expected thickness. The results show that lower MS power and lower Ar pressure can make good adhesion and improve the microstructures, eliminate the residual stress of films, which can increase the adhesion. At the MSIP period of coating, the substrate negative bias can increase the adhesion of films. It is because the action of energetic particles would make good touch with atoms at the both side of interface, or form an interface atom layer. The properties measurement sow Al coating CFRP materials have some metal properties of low resistivity, low leakage and medium corrosion resistance, which can be widely used.
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