Difference and similarities between black silicon carbide & green silicon carbide
1.Their colors are different, black silicon carbide ( short for C) is black, green silicon carbide (short for GC) is green.
2.Black SiC is quartz sand, petroleum coke in primary raw materials, smelting in high temperature electric resistance arc furnace. Green SiC is made from quartz sand and petroleum coke, appended with salt, then smelted in high temperature electric resistance arc furnace.
3.Black silicon carbide has SiC content about 98% min., while green silicon carbide has SiC content about 99% min.
4.Green SiC is harder than black SiC although they are both Mohs hardness is 9.2.
Similarities are as follows:
1.Both are man-made materials, not belong to natural mineral materials.
2.They are both used in abrasives products( blasting media, polishing media,grinding wheels, cutting wheels,flapping discs etc.) or high advanced refractory materials, used as semi conductor material and metallurgical deoxidizer.
3.Both main material content of finished product is silicon carbide (SiC).
4.Both max.usable temperature in air is 1900 Celsius degree, decomposition point is 2600 Celsius degree.
5.They have similar bulk density (1.2~1.6g/cm3) and true density (3.20~3.25g/cm3).
