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93. Effect of atmosphere of graphitization of carbon

✍ Scribed by Tokiti Noda; Michio Inagaki

Publisher: Elsevier Science
Year: 1964
Tongue: English
Weight: 146 KB
Volume: 1
Category: Article
ISSN: 0008-6223
DOI: 10.1016/0008-6223(64)90383-5

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✦ Synopsis

CARBON

ratio is very sensitive to preferred orientation. A susceptibility minimum appears to correspond to an intermediate state of partial graphitization. Layer ordering as a function of time at constant temperature approximates a relaxation process with a distribution of relaxation times. There are appreciable differences in the ~aphit~ation rates (and perhaps in the degree of ~aphi~ation obtainable) of various carbons. Although noticeable changes occur in less than one minute at 2900°C times of the order of 100 minutes or more are required to complete the process at this temperature. The relationship of these results of theories of graphitization will be discussed. *A contract facility of the National Aeronautics and Space Administration. 91. Effect of rate of temperature rise during ~phiti~tion on the &al properties of graphite

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