Research and Application Progress of Silicon Crbide Fiber Reinforced Silicon Carbide Anti-oxidation Ceramic Materials
Silicon carbide fiber/silicon carbide(SiCf/SiC)ceramic composites possess a combination of high toughness from SiC fibers and the high melting point,hardness,and strength of SiC ceramics.They have broad application prospects in aerospace,nuclear energy and wear-resistant devices.The development of SiCf/SiC composite materials is closely related to the research progress of their interface phase.The interface phase of the composite materials refers to the microstructure of SiCf/SiC.On the one hand,the interface phase can realize crack deflection and load transfer between the matrix/fibers,and can also reduce the residual stress inside the matrix/fiber interface,ensuring the non-brittle fracture of the composite material.On the other hand,a suitable interface phase material can enhance the antioxidant properties of SiCf/SiC composites,thus further improving the overall heat resistance of the material.According to different design concepts,this paper briefly describes the three different forms of interface phases and discusses their effects on SiCf/SiC composites.Furthermore,it provides an outlook on the future development trends and applications of silicon carbide fiber-reinforced silicon carbide antioxidant ceramic materials.
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