Effect of Temperature and Oxygen Partial Pressure on the Oxidation of Titanium Carbide
- 1 April 1967
- journal article
- Published by Wiley in Journal of the American Ceramic Society
- Vol. 50 (4) , 176-181
- https://doi.org/10.1111/j.1151-2916.1967.tb15076.x
Abstract
The oxidation of powdered titanium carbide was followed by weight gain measurement, using a thermogravimetric apparatus, between 600° and 850°C. The oxygen partial pressure effect was investigated between 6.5 and 645 mm Hg. The oxidation was parabolic with an activation energy of 46 ± 2 kcal/mole which was essentially independent of the overpressure. The rate of oxidation was dependent onpo2¼ below approximately 800°C. Above this temperature the rate was proportional topo2¼. The oxidation of single‐crystal TiC above 850° C produced porous rutile films. The rates of oxidation were between linear and parabolic time dependence.Keywords
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