This study presents non-isothermal analysis of the oxidation behavior of tungsten carbide 20% cobalt powder. This was done to further understand and quantitatively model of this process. The effect of heating rate from 5 to 20 °C/min on the oxidation behavior was examined. The specimens were heated in air from ambient temperature up to 1000 °C using the aforementioned heating rates. XRD was used to assess the phases present in the original powder as well as specimens heated to different temperatures. The phases present in the green powder were WC, W2C and metallic cobalt, while the phases appearing at 600 °C were WC, WO3 and CoWO4 and those present at 1000 °C were WO3 and CoWO4. Kinetic calculations were carried out, the value of activation energy was calculated at different conversions using the Flyn -Wall -Osawa method, and the average value was about (255 kJ/mole). The corresponding activation energy values calculated by the Coats -Redfern method were lower (140 kJ /mole).
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