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- Title
ZrB<sub>2</sub>–SiC Oxidation Protective Coating on C/C Composites Prepared by Vapor Silicon Infiltration Process.
- Authors
Haijun Zhou; Le Gao; Zhen Wang; Shaoming Dong
- Abstract
ZrB2–SiC coating on C/C composites was prepared through vapor silicon infiltration process. The coated C/C composites showed excellent oxidation performance at 1500°C. Isothermal oxidation results showed that there was weight gain accompanied in the whole oxidation process and no evidence of oxidation of C/C composite substrate was observed. The thickness of coating increased from 120 μm to about 200 μm after oxidizing at 1500°C. Three distinct layers could be observed in the coating, namely, outer SiO2-rich layer, middle ZrB2-rich layer, and inner SiC-rich layer. ZrB2 particles were coarsened after oxidation.
- Subjects
OXIDATION; PROTECTIVE coatings; CORROSION &; anti-corrosives; SURFACES (Technology); ISOTHERMAL surfaces (Thermodynamics); SILICON; SUBSTRATES (Materials science); CARBON composites; WEIGHT gain
- Publication
Journal of the American Ceramic Society, 2010, Vol 93, Issue 4, p915
- ISSN
0002-7820
- Publication type
Article
- DOI
10.1111/j.1551-2916.2009.03481.x