N. S. Jacobson—contributing editor
High-Temperature Oxidation at 1900°C of ZrB2–xSiC Ultrahigh-Temperature Ceramic Composites
Article first published online: 18 SEP 2008
© 2008 The American Ceramic Society
Journal of the American Ceramic Society
Volume 91, Issue 10, pages 3328–3334, October 2008
How to Cite
Han, W.-B., Hu, P., Zhang, X.-H., Han, J.-C. and Meng, S.-H. (2008), High-Temperature Oxidation at 1900°C of ZrB2–xSiC Ultrahigh-Temperature Ceramic Composites. Journal of the American Ceramic Society, 91: 3328–3334. doi: 10.1111/j.1551-2916.2008.02660.x
This work was supported by the National Natural Science Foundation of China (50602010), the Research Fund for the Doctoral Program of Higher Education (20060213031) and the Program for New Century Excellent Talents in University.
- Issue published online: 1 OCT 2008
- Article first published online: 18 SEP 2008
- Manuscript No. 24445. Received March 21, 2008; approved July 22, 2008.
Oxidation of ZrB2-based ultrahigh-temperature ceramic composites containing 10, 20, and 30 vol% SiC was performed at 1900°C for 1 h in air. ZrB2–20 vol% SiC exhibited the highest oxidation resistance at this temperature and formed a dense coherent oxide scale after oxidation, whereas a strong degradation was observed for both ZrB2–10 vol% SiC and ZrB2–30 vol% SiC. In addition, cracks and spallation in the oxide scale were also detected for the latter materials. The oxidation behaviors of ZrB2–SiC composites were investigated. The effect of SiC content was analyzed and oxidation models were proposed to describe the observed microstructures.