Introduction Of Silicon Carbide Species

Silicon carbide has black silicon carbide and green silicon carbide two commonly used base of the variety, both belong to α-SiC. ① Black silicon carbide contains about 95% SiC, its toughness is higher than green silicon carbide, mostly used for processing low tensile strength materials, such as glass, ceramics, stone, refractory materials, cast iron and non-ferrous metals. Green silicon carbide contains more than 97% SiC, self-sharpening is good, mostly used for processing cemented carbide, titanium alloy and optical glass, but also used for honing cylinder liner and fine grinding high-speed steel tools. In addition, there is cubic silicon carbide, which is a special process of yellow green crystal, used to make abrade for bearing superfinishing, can make the surface roughness from Ra32 ~ 0.16 microns a processing to Ra0.04 ~ 0.02 microns.

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