Ablation behavior of a C/C-ZrC-SiC composite based on high-solid-loading slurry impregnation under oxyacetylene torch |
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| Affiliation: | 1. Powder Metallurgy Research Institute, Central South University, Changsha 410083, China;2. Advanced Research Center, Central South University, Changsha 410083, China;1. School of Aircraft Engineering, Nanchang Hangkong University, Nanchang 330063, China;2. Jiangxi Key Laboratory of Micro Aeroengine, Nanchang 330063, China;3. Aviation Engineering College, Civil Aviation Flight University of China, Guanghan 618307, Sichuan, China;4. Analysis and Testing Center of Nanchang Hangkong University, Nanchang 330063, China;5. Science and Technology on Plasma Dynamics Laboratory, Air Force Engineering University, Xi’an, Shaanxi 710038, China;6. China Academy of Launch Vehicle Technology, Beijing 100076, China;7. College of Civil Aviation, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;1. Rocket Force University of Engineering, Xi''an, 710025, China;2. Xi''an Aerospace Composites Research Institute, Xi''an, 710025, China;3. Project Management Center, Beijing, 100085, China;1. State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, Shaanxi, China;2. School of Materials Engineering, Xi’an Aeronatical University, Xi’an 710077 China;3. Shaanxi Huaqin Technology Industry Co., Ltd, Xi’an, China;4. Xi’an Jiaotong University, Xi’an 710049, Shaanxi, China;5. The Third Affiliated Hospital of Air Force Medical University, Xi’an 710032, Shaanxi, China;1. National Key Laboratory of Science and Technology on High-strength Structural Materials, Central South University, Changsha 410083, China;2. School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China;1. School of Mechanics, Civil Engineering & Architecture, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, PR China;2. State Key Laboratory of Solidification Processing, Shaanxi Key Laboratory of Fiber Reinforced Light Composite Materials, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, PR China;1. Shaanxi Province Key Laboratory of Fiber Reinforced Light Composites Materials, Northwestern Polytechnical University, Xi''an, Shaanxi 710072, China;2. School of Mechanics, Civil Engineering & Architecture, Northwestern Polytechnical University, Xi’an, China |
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| 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/cm3. After exposure to oxyacetylene flame with a heat flux of 3.86 MW/m2 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. |
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| Keywords: | C/C-ZrC-SiC Slurry impregnation Microstructure Ablation |
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