C/SIC ceramic base composite material application
Carbon fiber not only has the characteristics of low density, high strength, abrasion resistance, corrosion resistance, conductivity, heat conduction, low friction coefficient, etc., but also has excellent high -temperature mechanical properties. Do not decrease. However, its high temperature resistance is poor. Therefore, it is usually composed of metal, ceramics, and resin to prepare advanced composite materials for cutting -edge technologies such as aerospace and military industry.
In the field of thermal structure ceramic base composite materials, silicon carbide uses its excellent high temperature mechanical performance (strength, antioxidant, anti -creep, etc.), low thermal expansion coefficient and friction coefficient, excellent thermal conductivity and conductivity, which becomes the substrate One of the main candidates for materials. However, the disadvantage of SIC ceramics is greater brittleness.
C/SIC ceramic base composite material enhances SIC ceramics by adding carbon fiber, which can enable the material to absorb the fracture energy by relying on crack deflection, carbon fiber and fracture mechanism during the break. The excellent high temperature performance of SIC matrix is an excellent way to prepare high -performance advanced structural materials. It becomes the main candidate material for high -performance aviation engines. It will gradually be applied to the thermal end components, high -speed brakes, nuclear energy, and heat exchangers of gas turbine.
