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The difference between green silicon carbide and black silicon carbide: Silicon carbide has two commonly used basic varieties, black silicon carbide and green silicon carbide, both of which are α-SiC. Green silicon carbide and black silicon carbide are basically the same, but the raw materials and manufacturing processes are different. The product is green and translucent, and its hardness and purity are better than black silicon carbide.

Green silicon carbide and black silicon carbide are basically the same, but the raw materials and manufacturing processes are different. The product is green and translucent, and its hardness and purity are better than black silicon carbide. Its elastic coefficient reaches 410GPa, it will not dissolve under normal temperature and pressure, it will be worn out when the temperature reaches 1600°C or above, and it will decompose when it reaches 2815.5°C.

1. Black silicon carbide contains about 98.5% 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.

2. Green silicon carbide contains more than 99% SiC and has good self-sharpening properties. In addition, there is cubic silicon carbide, which is a yellow-green crystal made by a special process. The abrasive tool used to make it is suitable for super-finishing of bearings, and the surface roughness can be processed from Ra32~0.16 microns to Ra0.04~ 0.02 microns.

3.Green silicon carbide chemical coefficient: due to its stable chemical properties, high thermal conductivity, small thermal expansion coefficient, and good wear resistance, in addition to being used as abrasives, there are many other uses; it is used to make advanced refractory materials, thermal shock, volume Small, light weight and high strength, good energy saving effect.

4.Green silicon carbide is suitable for grinding copper, brass, aluminum, precious stones, optical glass, ceramics and other hard alloys, metals and hard and brittle non-metallic materials. Its micropowder can also be used as a ceramic material. Due to the high purity of black silicon carbide, it is also widely used in the manufacture of refractory materials and various abrasive tools.

5.Black silicon carbide is made of quartz sand, petroleum coke and high-quality silica as the main raw materials, and is smelted at high temperature in a resistance furnace. Its hardness is between corundum and diamond, its mechanical strength is higher than corundum, and it is brittle and sharp.