Abstract
Mullite coatings with different particle sizes were prepared on carbon/carbon (C/C)-SiC composites surface by pulse arc discharge deposition (PADD). Phase compositions and microstructures of the as-prepared mullite coatings were characterized by XRD and SEM. The influence of particle size on the microstructures and oxidation resistance of the as-coated samples were investigated. Results indicate that the dense and homogeneous mullite coating was achieved when the size of mullite powder is about 1 μm, which could effectively protect C/C composites from oxidation at 1773 K in air for 156 h with a mass loss of 1.98%.
Original language | English |
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Pages (from-to) | 103744-103751 |
Number of pages | 8 |
Journal | RSC Advances |
Volume | 5 |
Issue number | 125 |
DOIs | |
State | Published - 30 Nov 2015 |