Journal
CORROSION SCIENCE
Volume 53, Issue 12, Pages 4102-4108Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2011.08.018
Keywords
Ceramic matrix composites; Intermetallic; Oxidation
Funding
- National Natural Science Foundation of China [50832004]
- 111 Project [B08040]
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A MoSi2-CrSi2-SiC-Si multi-component coating was prepared on the surface of carbon/carbon (C/C) composites by a two-step pack cementation method. The microstructure, oxidation behavior and mechanical properties of the coating were studied. These results show that the multi-component coating could protect the C/C composites from oxidation in air at 1873 K for 300 h and withstand 30 thermal cycles between 1873 K and room temperature, respectively. The mass loss and mechanical property loss of the coated C/C composites are considered due to the worse fluidity of SiO2 at intermediate temperatures and the thermal mismatch between the coating and C/C composites. (C) 2011 Elsevier Ltd. All rights reserved.
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