Modeling of Formation of a Crystal Structure in a Carbon Fiber

The method of an atom-atom potential has been used to simulate the process of three-dimensional ordering in a carbon fiber. It has been established that the deviation of the interlayer spacing d 002 in a carbon fiber from the analogous value in graphite and the absence of three-dimensional structural ordering are explained by small dimensions of crystalline regions. Weak ability to graphitization observed for a carbon fiber is associated with a limited increase of dimensions of the crystalline regions.