Abstract
Thirteen grades of graphite were made for the Jet Propulsion Laboratory high-temperature studies. The uniformity of different grades was of particular interest. The variables included were pitch level, coke particle size distribution, molding pressure, graphitization temperature, and pitch impregnation. Precautions were taken to assure maximum uniformity of the individual grades. Changes in the dimensions, density, coking value, resistivity and hardness resulting from processing are reported.
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