SiC纤维增强复合材料界面微观结构的Raman光谱研究

使用Ｒａｍａｎ显微技术（Ｒａｍａｎ ｍｉｃｒｏｓｃｏｐｙ）研究了ＳｉＣ纤维增强碳化硅、ＪＧ６玻璃和Ｐｙｅｒｘ玻璃复合材料界面的微观结构。研究表明，复合材料的制备过程使纤维内自由碳颗粒的大小增大，尤其是在界面层两种玻璃复合材料制造过程使原纤维富含ＳｉＯ２的表面层消失，而且发生了界面层碳结构的有序化。

Raman Spectroscopy Study on Interfacial Microstructures of SiC Reinforced Composites

Raman Microscopy was employed to investigate the interfacial microstructure of SiC fibers to reinforce silicon carbide,JG6 glass and Pyrex glass matrixes. It is found that fabrication processing may result in disappearance of rich-silica sheath of the fibers in both SiC/JG6 and SiC/Pyrex composite, and growth of free carbon grains in the fibers for the three ceramic based composite, especially in the fiber surface layer for both glass based composites. It is also found that a considerable ordering of carbon structure in the interface layer was formed after fabrication for both SiC/glass composites.