Abstract
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 1873K for 300h and withstand 30 thermal cycles between 1873K 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.
Original language | English |
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Pages (from-to) | 4102-4108 |
Number of pages | 7 |
Journal | Corrosion Science |
Volume | 53 |
Issue number | 12 |
DOIs | |
State | Published - Dec 2011 |
Keywords
- A. Ceramic matrix composites
- A. Intermetallic
- C. Oxidation