ZrC Oxidization Mechanism in Air

Abstract:

The ZrC oxidization mechanism in air was carefully investigated by the phase composition and grain morphology through DSC, X-ray diffraction and SEM respectively at different temperature. It was found that the oxidization of ZrC start at about 400°C by oxygen atom entering the interstitial sites to substitute part of Carbon. Zr₂O and ZrO₂ can be formed at a temperature of about 600°C and 1000°Crespectively. And ZrC will completely transfer to ZrO₂ at 1000°C for 5hrs. No obvious grain morphology change was found under 600°C.

• Periodical: Key Engineering Materials (Volumes 512-515)
• Pages: 1721-1724
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.512-515.1721
• Online since: June 2012
• Authors: Yu Wei Zhang, Jin Yong Zhang, Jing Jing Xie, Zheng Yi Fu
• Keywords: Oxidization, ZrC

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DOI: 10.1007/bf00900860