電氣用炭素製品製造に關する研究 (第8報)
熱處理後の炭素型造物の陰蔽孔度及び結晶子の大さ
1951 年 2 巻 2 号 p. 41-43
詳細
1951 年 2 巻 2 号 p. 41-43
On the molded carbon articles prepared from a coal pitch coke having some difficulties on graphitisation, changes of cryptic pores and sizes of crystallites of them treated at various high temperatures were studied.
The higher treating temperature, the lesser amount of cryptic pores. Size of crystallites distinctly grown up when heating temperature exceeded 1900°C. Actual size of the crystallites, however, finer than that of ordinary cokes. Also it was observed that a little diminution of the crystallites of the carbon heated nearly 1700°C, against growing tendency of crystallites by baking temperature elevation. Probably this fact have a connection with the maximum value of H2SO4-K2Cr2O7 wet oxydation loss of the carbon exists the same range of treating temperature.
