Ablation behavior of a C/C-ZrC-SiC composite based on high-solid-loading slurry impregnation under oxyacetylene torch. Issue 12 (September 2022)

• Record Type: Journal Article
• Authors: Tang, Zhenxiao; Yi, Maozhong; Yin, Huan; Du, Yuhui; Wu, Huang; Peng, Ke
• Is Part Of: Journal of the European Ceramic Society. Volume 42:Issue 12(2022)
• Page Start: 4748
• Page End: 4758
• Publication Date: 2022-09
• Subjects: C/C-ZrC-SiC -- Slurry impregnation -- Microstructure -- Ablation; Ceramic materials -- Periodicals; Composite materials -- Periodicals; Matériaux céramiques -- Périodiques; Composites -- Périodiques; Ceramic materials; Composite materials; Periodicals; Electronic journals; 666.05
• DOI: 10.1016/j.jeurceramsoc.2022.05.030
• Languages: English
• ISSNs: 0955-2219

Abstract

Abstract: A C/C-ZrC-SiC composite was successfully prepared by high-solid-loading slurry impregnation combined with polymer infiltration and pyrolysis. The microstructure and ablation behavior of the C/C–ZrC–SiC composite were investigated. ZrC particles were uniformly distributed in the matrix, and the obtained C/C–ZrC–SiC composite had a high density of 2.74 g/cm 3 . After exposure to oxyacetylene flame with a heat flux of 3.86 MW/m 2 for 120 s, the mass and linear ablation rates of the composite were 0.72 ± 0.11 mg/s and 0.52 ± 0.09 µm/s, respectively. The excellent ablation properties of the composite were attributed to the protection of the matrix by a three-layered oxide scale consisting of ZrO2 /SiO2 -rich/ZrO2 -SiO2 .