Silicon carbide has many other uses besides abrasives because it has excellent performance, stability, high thermal conductivity, small coefficient of thermal expansion, and wear resistance. The hardness of silicon carbide is very high, with a Mohs hardness of 9.5, second only to the harder diamond in the world (grade 10). It is a semiconductor with excellent thermal conductivity, performance, and characteristics that can resist oxidation at high temperatures.
Silicon carbide is a common isomorphic substance that forms at temperatures above 2000 and has a hexagonal crystal structure (such as fibrous zinc deposits). Silicon carbide, with a cubic structure similar to diamond, formed below 2000. Although the application of multiphase catalyst carriers is significant because they have a higher unit surface area than the type, and another type of silicon carbide, silicon carbide, is very stable and has a pleasant sound during collisions, so far, these two types have not been commercially used.
Silicon carbide can be divided into silicon carbide and silicon carbide. There are two types of silicon carbide abrasives, green silicon carbide, black and green. Silicon carbide is the main type of silicon carbide ceramic material. The toughness of black silicon carbide is higher than that of green silicon carbide, which is mainly used for processing materials with low tensile strength such as glass, ceramics, stones, refractory materials, cast iron, and non-ferrous metals. Green silicon carbide has good self sharpening properties and is mainly used for processing hard alloys, titanium alloys, and optical glass.
Besides being used as an abrasive, silicon carbide has many other uses. Coating silicon carbide powder on the wall of the turbine impeller or cylinder body, combined with a special process, can improve its wear resistance and extend its service life by 1-2 times; Black silicon carbide and green refractory materials are heat-resistant, light in weight, high in strength, and have good energy-saving effects.
