扫描隧道显微镜对粘胶基碳纤维表面微观结构的研究

用扫描隧道显微镜（STM）对粘胶基碳纤维（RCF）表面的微观结构进行了研究，首次获得了原子级的RCF图像，对其原子间距作了精确地量化，并且尝试着将所得到的图像与高定向降解石墨（HOPG）相比较，以期对RCF的微观结构有更深入的了解，在原子级尺度上，发现了原子排列并不规则的石墨状结构，二维视图量化结果表明：相邻原子间距为0．142nm，最近六圆环中心的距离是0．253nm。

Microstructure Study of Rayon-based Carbon Fiber Surfaces by Scanning Tunneling Microscope

This work is an attempt to investigate the surface microstructure of rayon based carbon fibers (RCF) with the help of scanning tunneling microscope (STM), which is still lacking.Remarkable results are obtained at atomic resolution scales. Graphite like structure on the surface of RCF examined has been observed for the first time. According to the data in the 2D image, the distance between two adjacent carbon atom is 0.142 nm,while the distance between the closest center of hexagonal carbon ring is 0.253 nm, revealing the carbon hexagon structure is deformed.