Engineering Application Of Sic Ceramics

Sic ceramics have excellent high temperature strength and hardness, good oxidation and corrosion resistance, and are considered to be a wear-resistant and corrosion-resistant structural material with wide application prospects. For example, as high-temperature wear-resistant components and corrosion-resistant components, it has been widely used in metallurgy, machinery, chemical industry, energy, aerospace and other industrial fields. For example, SiC is used as refractory materials, saggers, sticks, pillars and other materials for ceramic kilns. SiC can be used to make abrasive wheels, various abrasive tools, and wear-resistant and corrosion-resistant seals for chemical pumps. The high elastic modulus and low density of SiC ceramics determine its high specific rigidity and can be used as structural materials in the aerospace field. The thermal expansion coefficient of SiC ceramics can be matched with Si Ga and As, and is often used as an electronic packaging material. C and Si have lower atomic numbers, and SiC can be used as a structural material for atomic reactors. SiC ceramics can also be used for high-temperature structural materials, such as engine parts and steam turbine blades. The applications of SiC ceramic materials are shown in the following table.

Application fields of silicon carbide ceramic materials