Oxidation Behavior of C/SiC Composite with CVD SiC-B4C Coating in a Wet Oxygen Environment
β Scribed by Wenbin Yang; Litong Zhang; Laifei Cheng; Yongsheng Liu; Laifei Cheng; Weihua Zhang
- Publisher
- Springer Netherlands
- Year
- 2009
- Tongue
- English
- Weight
- 423 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0929-189X
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π SIMILAR VOLUMES
A SiC/Mo-Si multilayer coating was prepared on the surface of C/SiC composites by chemical vapor deposition (CVD) combined with slurry painting. The coating was composed of a dense CVD SiC coating alternating with a porous Mo-Si layer. From inside to outisde the coating consisted of CVD SiC, Mo-Si,
Silicon infiltration pretreatment has been used to improve the high-temperature oxidation resistance of CVD-SiC coated C/C composites. C/C composites were infiltrated with silicon in an Ar atmosphere and then coated with CVD-SIC coating to a thickness of ca 50 pm. Isothermal and cyclic oxidation tes