Types of silicon carbide:
There are two basic varieties of silicon carbide, black silicon carbide and green silicon carbide, both of which belong to c-SiC. ① Black silicon carbide contains more than 98% SiC, and its toughness is higher than that of green silicon carbide. It is mostly used for processing materials with low tensile strength, such as glass, ceramics, stone, refractory materials, cast iron and non-ferrous metals.
②Green silicon carbide contains more than 98.5% SiC and has good self-sharpening properties. It is mostly used for processing cemented carbide, titanium alloy and optical glass, as well as for honing cylinder liners and fine grinding high-speed steel tools. In addition, there is cubic silicon carbide, which is a yellow-green crystal prepared by a special process, and the abrasive tool is suitable for super finishing of bearings.