人造黒鉛製品のX線による研究 IV

混合黒鉛化試料のX線回折図形

抄録

It was reported in the previous paper that (00l) diffraction profiles of some electrographitized carbon products such as carbon brushes were asymmetric as a result of the overlapping of diffraction profiles of differently graphitized carbons. This paper reports the results of an investigation of the differentiation of (004) diffraction profiles of electrographitized carbon products which were made from petroleum coke and thermal black bonded by coal-tar pitch.
The (004) diffraction profiles of these samples were graphically separated into those of component carbons i. e. the electrographitized coke, carbon black and coke from binder pitch. The ratios of the integrated intensities of component carbons coincided fairly well with the mixing ratios of components when the intensities were corrected f or the effect of preferential orientation of graphite crystallites of coke origin. Coke derived from the pitch used as the binder of carbon materials was found to graphitize to a less extent than the coke derived from the same pitch without the admixture of carbon materials.