A multi layer coating with a SiW outer layer by liquid reaction formation method was prepared for carbon carbon composites,and then the structure of the oxide film on the coating was investigated by XRD,SEM,Raman spectrum and electron probe.

• 研究了一种液相法及其它方法制备的碳碳复合材料多层防氧化涂层，并用XRD，SEM，Raman光谱和EMPA研究了液相法制备的SiW涂层表面氧化后的结构。