Due to its stable chemical properties, high thermal conductivity, low thermal expansion coefficient and good wear resistance, silicon carbide has many other uses besides abrasives, such as coating silicon carbide powder on turbine impeller or cylinder block by special process. The inner wall can improve the wear resistance and prolong the service life by 1 to 2 times; the advanced refractory material used for the manufacture is heat-resistant, small in volume, light in weight and high in strength, and has good energy-saving effect. Low grade silicon carbide (about 85% SiC) is an excellent deoxidizer, which speeds up steelmaking and facilitates control of chemical composition and quality of steel. In addition, silicon carbide is also widely used to make silicon carbide rods for electric heating elements.
Silicon carbide has a high hardness and excellent thermal conductivity. It is a semiconductor that resists oxidation at high temperatures.
