Abstract
Si-SiC oxidation protective coating for C/C composites has been produced by the pack cementation technique. The microstructures, element distribution and phase composition of the as-received coating were analyzed by SEM, EDS and XRD. It was found that the coating characterized by excellent anti-oxidation and thermal shock resistance properties on the surface of C/C composites during exposure to an oxidizing atmosphere at 1873 K, could protect C/C composites from oxidation for 128 h. The weight loss percent of the Si-SiC coating coated sample was 4.03% after 152 h oxidation in air at 1873 K. The failure of the coating is due to the formation of bubble holes on the coating surface.
| Original language | English |
|---|---|
| Pages (from-to) | 263-264 |
| Number of pages | 2 |
| Journal | Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering |
| Volume | 34 |
| Issue number | SUPPL. 2 |
| State | Published - Sep 2005 |
Keywords
- Anti-oxidation
- C/C composites
- Coating