Introduction of ceramic composite materials

Composite materials usually have good comprehensive properties in which different materials complement each other's strengths. Composite materials have the characteristics of two or more materials, which can improve the performance of a single material, such as increasing strength, increasing toughness, and improving dielectric properties. Ceramic composite materials used as high-temperature structural materials are mainly used in aerospace, military and other sectors. In addition, various ceramic composite materials are widely used in the fields of machinery, chemical engineering, and electronic technology.

Ceramic matrix composite material is a type of composite material that is composited with various fibers with ceramic as the matrix. The ceramic substrate can be high-temperature structural ceramics such as silicon nitride and silicon carbide. These advanced ceramics have excellent properties such as high temperature resistance, high strength and rigidity, relatively light weight, and corrosion resistance. Their fatal weakness is brittleness. When under stress, they will crack, and even break and cause material failure. The use of high-strength, high-elasticity fiber and matrix composite is an effective method to improve the toughness and reliability of ceramics. Fiber can prevent the propagation of cracks, thereby obtaining fiber-reinforced ceramic matrix composites with excellent toughness. Ceramic matrix composites have excellent high temperature resistance and are mainly used as high temperature and wear resistant products. The maximum operating temperature mainly depends on the characteristics of the substrate.