Published: Jan 2010
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TEST METHODS USED TO CHARACTERIZE THE properties of petroleum coke, pitch, carbon artifacts (anodes and cathodes), and manufactured carbon products and graphite are presented in this chapter. This includes the raw materials and artifacts used in the electrolytic production of aluminum as well as graphite and its artifacts. The information presented here was extracted from ASTM standards and from Introduction to Carbon Technologies, Sciences of Carbon Materials, Carbon and Graphite Handbook, and Chemistry and Physics of Carbon [1–4]. ASTM Subcommittee D02.05 on Properties of Fuels, Petroleum Coke and Carbon Material has developed the test methods for coke, pitch, and for electrode carbon products. ASTM Subcommittee D02.F0 on Manufactured Carbon and Graphite has developed the test methods for manufactured carbon and graphite. This subcommittee was originally ASTM Committee C05 on Manufactured Carbon and Graphite, and it has recently been assimilated into ASTM Committee D02 on Petroleum and Lubricants as Subcommittee D02.F0. Carbon is the chemical element that is the basis of organic chemistry. The two common, crystalline allotropes of carbon are diamond and graphite. Diamond is one of the hardest substances known, and graphite is one of the softest substances known. Artifacts for the aluminum industry, prebaked amorphous carbon electrodes, are prepared from pitch and petroleum coke that has not been graphitized.
Mills, C. O.
Consultant, Ponca City, OK
Iannuzzi, F. A.
Southern Research Institute, Birmingham, AL