Abstract
The oxidation behavior of 3-D C/SiC composites coated with SiC/a-BC x /SiC coatings was investigated in wet oxygen environments. The effects of water on oxidation behaviors of the coated composites at different temperatures were discussed based on weight change, morphology change and strength change. After oxidation at 700, 1000, and 1200°C in two kinds of water atmosphere for 100 h, the high strength retained ratios of the composites with modified coatings are demonstrated, which prove the good oxidation protection of the modified coatings for 3-D C/SiC composites.
Original language | English |
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Pages (from-to) | 185-196 |
Number of pages | 12 |
Journal | Advanced Composite Materials |
Volume | 19 |
Issue number | 2 |
DOIs | |
State | Published - 1 Apr 2010 |
Keywords
- Boron carbide
- C/SiC
- Ceramic matrix composites
- Oxidation behavior
- Water partial pressure