On the Relation Between the Crystallite Diameters and the Physical Properties of Soft and Hard Carbons by Heat Treatment Temperature

[摘要] On the soft carbon made from petroleum coke, it was found that the graphitization began at around 2,000¡É and crystallite diameters were almost saturated at 2,400¡É., and that the molecular planes were difficult to arrange into an ideal graphite lattice in spite of the saturation of crystallinity by heat treatment temperature. On the hard carbon made from cross-linked thermosetting plastics, phenol-formaldehyde filler and phenol-benzaldehyde binder, it was very difficult to rotate the molecular planes into a regular directional arrangement and into a consecutive order corresponding to the large graphite crystals. In addition to the above mentioned crystallinity, it was also determined in relation to electric conductivity, resistivity, hardness and apparent density of carbons.

[学科分类] 化学（综合）