Blue Ceramic Alumina(BCA), named SG abrasive as well, is new type of abrasive material. During the grinding process, the abrasive particles are self-sharpening and can continuously expose new sharp-edged cutting edges. Widely used in high pressure grinding, which greatly improves grinding efficiency.
Usually high-pressure grinding, fine grinding often requires the use of super-hard materials such as cubic boron nitride（CBN), the cost is high, also complicated in process.
SG abrasives are becoming more popular emerging materials on the market due to their high hardness, good self-sharpening properties, long working life, low temperature during grinding, and can replace expensive superhard materials.