抄録
Several commercial carbon brushes were examined by X-ray powder method. Unit cell dimensions, crystal sizes, intensity ratios of X-ray reflexions and so called “Crypticpore ” of graphite crystallites were determined. Degrees of graphitization of the brushes were discussed with these data. Details of the experment and discussion were reported on the Bulletin of the Cnemical Society of Japan, vol.25, p 195-198, (1952).
