| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1465223 | Ceramics International | 2009 | 6 Pages |
Abstract
2D C/ZrC–SiC composites were fabricated by chemical vapor infiltration combined with polymer slurry infiltration and pyrolysis. Liquid highly branched polycarbosilane was used as the pre-ceramic precursor. In order to improve the oxidation resistance, three kinds of coating structures were prepared on C/ZrC–SiC composites: pure zirconium carbide coating, SiC–ZrC coating, and ZrB2–SiC coating. Structural evolutions of the as-produced composites after oxidation in CH4 combustion gas atmosphere at about 1800 °C were investigated and compared. Based on a model of the oxidation process, the mixture ZrB2–CVD SiC showed the best oxidation resistance.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Houbu Li, Litong Zhang, Laifei Cheng, Yiguang Wang,