Rate and Heat of Vaporization of Graphite above 3000°K
- 15 October 1969
- journal article
- conference paper
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 51 (8), 3231-3240
- https://doi.org/10.1063/1.1672500
Abstract
The rate of vaporization of graphite filaments has been measured from 2500 to 3400°K in vacuum and in He by pulse heating techniques. At 3400°K, the rate of vaporization was sufficiently high that a direct determination of the heat of vaporization could be obtained. The experimental results have been correlated with thermodynamic data obtained at lower temperatures on graphite and its vapor species; the predominance of C2 in vaporizing graphite is shown to satisfy the experimental results. The specific surface area of the filaments was measured and interpreted.Keywords
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