Pressure Baked Graphite Materials

摘要

The objective of the program was to investigate the isostatic pressure baking process as a means for fabricating improved graphites. Using a standard mixture of graphite flour, thermal furnace black and coal tar pitch, the optimum process conditions within the capability of the apparatus used were determined. Graphite density of 1.91 g/cc, flexural strength of 3000 psi, and compressive strength of 9000 psi was obtained. Other aggregates and binders were screened, using the above optimum process conditions. An isotropic carbon aggregate, with thermal furnace black and coal tar pitch, resulted in a graphite having a density of 1.95 g/cc, flexural strength of 6400 psi, and compressive strength of 14,000 psi. Graphite properties were essentially isotropic. Recommendations to increase size, temperature, and pressure capabilities, and to investigate more thoroughly certain process variables are made. (Author)