标题：Microstructure and ablation properties of SiC/ZrB2–SiC/ZrB2/SiC multilayer coating on graphite
作者：Wang, Peng ;Li, Sujuan ;Wei, Chuncheng ;Han, Wenbo ;Wen, Guangwu ;Geng, Xin ;Li, Shuang ;Sun, Haibin ;Li, Xiaowei
作者机构：[Wang, Peng ;Li, Sujuan ;Wei, Chuncheng ;Wen, Guangwu ;Geng, Xin ;Sun, Haibin ;Li, Xiaowei ] School of Materials Science and Engineering, Shandong Uni 更多
来源：Journal of Alloys and Compounds
摘要：To improve ablation resistance of graphite, SiC/ZrB2-SiC/ZrB2/SiC coating was prepared by pack cementation and CVD. SiC/ZrB2–SiC/ZrB2/SiC coating showed excellent ablation resistance, its mass and linear ablation rate were only 0.27 mg/s and 0.57 μm/s after ablation under oxyacetylene flame for 298 s. CVD ZrB2/SiC layer significantly improved the ablation resistance of SiC/ZrB2–SiC/ZrB2/SiC coating. During ablation, the surface temperature gradually increased until it stabilized around 2220 °C. The surface temperature response in different stages was affected by layered microstructure evolution and emissivity of different layers.
© 2018 Elsevier B.V.