Member, The American Ceramic Society.
Oxidation Behavior of ZrB2–SiC–TaC Ceramics
Article first published online: 15 NOV 2011
© 2011 The American Ceramic Society
Journal of the American Ceramic Society
Volume 95, Issue 1, pages 374–378, January 2012
How to Cite
Wang, Y., Ma, B., Li, L., An, L. (2012), Oxidation Behavior of ZrB2–SiC–TaC Ceramics. Journal of the American Ceramic Society, 95: 374–378. doi: 10.1111/j.1551-2916.2011.04945.x
This work is financially supported by the Chinese Natural Science Foundation (Grant # 51172181), the Research Fund of State Key Laboratory of Solidification Processing (NWPU, China, Grant #21-TP2007), and 111 Project (B08040).
- Issue published online: 3 JAN 2012
- Article first published online: 15 NOV 2011
- Manuscript Accepted: 12 OCT 2011
- Manuscript Received: 9 MAY 2011
- Chinese Natural Science Foundation. Grant Number: 90716023
- Research Fund of State Key Laboratory of Solidification Processing. Grant Number: 21-TP2007
ZrB2–SiC–TaC ceramics with different content of TaC were prepared by hot-pressing at 1800°C in vacuum environment. The oxidation behavior of these ceramics was studied in the temperature range of 1200°C–1500°C in air. It was found that low concentration of TaC (10 vol%) deteriorated the oxidation resistance of ZrB2–SiC, while high concentration of TaC (30 vol%) significantly improved the oxidation resistance of the ceramics. Reoxidation experiments indicated that the metallic species (tantalum and/or silicon) diffusing out of the materials into the oxides was initially involved in the controlling process.