High-temperature erosion resistance and aerodynamic oxidation mechanism of multi-layer MoSi2–CrSi2–Si/SiC coated carbon/carbon composites in a wind tunnel at 1873 K

作者: Tao Feng , He-Jun Li , Qian-Gang Fu , Xi Yang , Heng Wu

DOI: 10.1016/J.CARBON.2012.01.027

关键词:

摘要: Abstract The high-temperature erosion resistance of multi-layer MoSi 2 –CrSi –Si/SiC coated carbon/carbon (C/C) composites was investigated in a wind tunnel. To study the aerodynamic oxidation mechanism and analyze failure C/C composites, shear force bending moment distribution tested specimens tunnel were calculated. Flexural strengths thermogravimetric analysis measured. These results show that antioxidation coating can protect from at 1873 K for more than 86 h. Due to high viscosity SiO , lacked effective 900 1500 K, resulting extensive mechanical damage fracture specimens.

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