引言碳纤维的结构通常采用定量的宽角及小角X光衍射方法及明场、暗场和晶格图象技术的电子显微镜定性观察进行测定。关于X光衍射及电子显微镜的测定方法及其对聚丙烯腈(PAN)基,纤维素基和沥青基碳纤 Introduction Carbon fiber structures are usually characterized by quantitative wide-angle and small-angle X-ray diffraction methods and qualitative observation by electron microscopy of bright field, dark field, and lattice image techniques. About X-ray Diffraction and Electron Microscope Measurement Method and Its Application to Polyacrylonitrile (PAN), Cellulose-based and Pitch-based Carbon Fiber