Research on Change of Micro-Structure and Mechanical Performance Si/C Matrix Composites for Thermal Process
Keywords:Si/C Matrix Composite, Thermal Process, Micro-Structure, Mechanical Performance, Infrared Thermometer.
Silicon carbide fiber reinforced silicon carbide composite material (Si/C) is a highly promising high-temperature structural material. The Si/C composites are prepared by means of the precursor impregnation (PIP) process. Under inert atmosphere, 1399-1801°C temperature range of Si/C composites for thermal process, as temperature measurement with infrared thermal imaging device tool monitoring temperature of the material, thermal process temperature on the Si/C composites are studied the effect of the micro-structure and mechanical performance. The results show that the 1399°C composites matrix crystallization degree increased after thermal process, the overall mechanical performance increase. While the temperature is rising further, the fiber of composite material is damaged, and the mechanical property also is decreased rapidly.
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