Abstract
In this paper, Si coatings were sprayed onto C/SiC composite substrates by atmospheric plasma spraying (APS). The high-temperature oxidation behavior of the substrate and coating at temperatures of 1100 and 1300 °C was also studied. The C/SiC ceramic matrix composite will be damaged seriously and even failed due to the oxidation of carbon fibers in matrix. The Si coating effectively improved the oxidation resistance of the C/SiC substrate in the high-temperature oxidation test. The effect of the thickness of the Si coatings on the oxidation resistance was investigated. The 150-μm coating is proved to enable the substrate to have the lowest oxidation weight loss and the best oxidation resistance after static oxidation for 5 h.
| Original language | English |
|---|---|
| Pages (from-to) | 4566-4572 |
| Number of pages | 7 |
| Journal | Rare Metals |
| Volume | 43 |
| Issue number | 9 |
| DOIs | |
| State | Published - Sep 2024 |
Keywords
- Carbon fiber
- Ceramic matrix composites (CMCs)
- Oxidation
- Plasma spray
- Si coating
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