Abstract
In this study, the oxidation of vanadium carbide (VC) powder at high temperatures was investigated in order to determine the possibility of its high-temperature use and additional material for improvement of the oxidation resistance of carbon-carbon (C/C) composites. VC powder with an average particle size of about 10μm was used in this experiment. The sample was oxidized at 300 to 1000°C for 5min to 25h in air. The weight changes were measured to estimate the oxidation resistance. The oxidation of sample for short oxidation times of 5min started at 300 to 400°C and weight gain change was measured with increasing oxidation temperature. The sample at the oxidation time of 0.5 to 1h, exhibited a weight gain change with increasing oxidation temperature. VC is oxidized to V2O5 at about 600°C.
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