white aluminum oxide Silicon carbide

Since silicon carbide chemical stability, high thermal conductivity, thermal expansion coefficient, good wear resistance, except for the abrasive used, there are many other uses, such as: a special process the silicon carbide powder coating on the cylinder block of the turbine impeller or wall, can improve the white aluminum oxide‍ wear resistance and extend the life of 1 to 2 times; for advanced refractory materials, heat shock, small size, light in weight high strength, good energy saving effect. A low-grade silicon carbide (containing about 85% SiC) is an excellent deoxidizer, with its speed steel to accelerate and facilitate control of the chemical composition, to improve the quality of steel. In addition, silicon carbide heating element is also used extensively for the production of silicon carbide. 

Silicon carbide's hardness great, Mohs hardness of 9.5, second only to the world's most hard-diamond (10), has excellent thermal conductivity, is a cubic boron nitride‍ semiconductor, resistant to oxidation at high temperatures.At least 70 kinds of crystalline silicon carbide type. α-SiC is the most common form of allomorphic matter formed at high temperatures above 2000 ° C, with a hexagonal crystal structure (like wurtzite). β-silicon carbide, cubic crystal structure similar to diamond, the generation of less than 2000 ° C, the structure of the page as shown in the drawings. fused zirconia mullite‍ Although heterogeneous catalysts supported on the body of the application, because it has a higher ratio of α type unit surface area and compelling, but until now, there has not been this type of commercial applications.