Reconfigured structure of an expanded graphite worm

The surface structure of an individually-compressed expanded graphite worm was obtained by reconfiguration of a series of analysis results from SEM, AFM, XRD and metallography using a granular analyzing software. The mean grain size was 30-45μm, independent of the granularity of the starting material and the process of expansion. The particles had a perfect crystallinity with L_a of 3-8μm and L_c of 30-80nm, and were oriented along the plane perpendicular to the pressing direction. The larger the pressure, the better the orientation.