Abstract
In this paper, SiC coating on three-dimensional (3-D) braided carbon fiber was obtained, which was infiltrated with SiO 2 sol into 3-D braided carbon fiber and then carbon–thermal reduced. The effect of carbon–thermal reduction process was examined. Thermal–oxidative stability of the 3-D braided carbon fiber coated with SiC was compared with original 3-D braided carbon fiber. The oxidation stability of the SiC coating/3-D braided carbon fiber was extended up to 900–1000 °C. After exposure to air at 900–1000 °C , the residual weight of the composite was 26–30%.
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