What Are The Application Fields Of Silicon Carbide?

Speaking of the hottest materials in recent years, silicon carbide is definitely one of them. The silicon carbide industry and technological information are everywhere, emerging endlessly, creating a hot scene.
application area
The application fields of silicon carbide are mainly divided into high-temperature applications, heating and heat exchange industries, applications in corrosive environments, grinding, wear-resistant machinery, non-ferrous metallurgy, cement production, filtration, national defense and aerospace, optical applications, semiconductor applications, nuclear industry, etc. The specific application forms mainly include the following aspects.
Silicon carbide ceramic is an important ceramic material that has been developed since the 1960s and is highly valued by countries around the world. In addition to the following uses, the application of silicon carbide ceramics in traditional industries has also been further developed, such as replacing wear-resistant lining plates with heat-resistant steel in cement production, which has undergone rapid development in the past decade.
In roller kilns, tunnel kilns, and shuttle kilns in industries such as high-end daily ceramics, sanitary ceramics, high-voltage electric ceramics, and glass, silicon carbide ceramics are usually selected as high-temperature kiln furniture materials. For example, silicon carbide crossbeams are suitable for load-bearing structural frames in industrial kilns. They have excellent high-temperature mechanical properties, good resistance to high-temperature creep, and do not bend or deform after long-term use; Silicon carbide roller bars have good thermal conductivity when used for high-temperature sintering of belts, saving energy consumption while not increasing the weight of kiln trucks; Silicon carbide cold air ducts are used for cooling belts in kilns with good resistance to rapid cooling and heat, and their service life is 5-10 times that of refractory materials such as stainless steel pipes or alumina.
Abrasive
Silicon carbide has a hardness second only to diamond and hexagonal boron nitride, and is a commonly used abrasive. Due to its superhard performance, it can be prepared into various grinding wheels, abrasive cloth, sandpaper, and various abrasives, widely used in the mechanical processing industry. Silicon carbide is mainly divided into two types: black silicon carbide and green silicon carbide. Black silicon carbide has a lower hardness compared to green silicon carbide, and is used for grinding materials with lower hardness, such as cast iron and non-metallic materials; Green silicon carbide is suitable for grinding hard alloys, optical glass, titanium alloys, and other things. There is also a type of cubic silicon carbide specifically used for ultra precision grinding of micro bearings.