Emery, SiC, also known as silicon carbide. Pure is a colorless crystal. Density 3.06~3.20. It's very hard, about 9.5 degrees Morse. Generally, it is a colorless powdery particle. After grinding, it can be used as grinding powder, polishing paper, and friction surfaces for grinding wheels and whetstones. It is made by heating sand and carbon in an electric furnace.

Alumina powder is made of liquid aluminum hydroxide by extrusion solidification, which contains a variety of elements, and the content is high, the overall density is higher than the general aluminum powder. The surface of alumina powder is closer to the ideal surface than that of other metal powders, so it has good exhaust performance. The particle size of alumina powder is generally 90-100 microns, has good suspension, no load charge, can be oxidized at low temperatures, and has excellent electromagnetic characteristics.

Industrial alumina is prepared from bauxite (AlzOs-3H2O) and diaspore, and A1203, which requires high purity, is generally prepared by chemical methods. A1203 has a lot of homogenous crystals, there are more than 10 known, there are mainly 3 crystal types, namely A-Alzos, B-AlzOs, Y-AlzOs. Among them, different structures and properties are different, and it is almost completely converted into a-AlzO3 at high temperatures above 1300℃.

Silicon carbide (SiC), a compound of silicon and carbon, is a fascinating material that has earned its place as a leading abrasive in various industries. Manufactured through a high-temperature smelting process involving quartz sand, petroleum coke, and wood chips, silicon carbide is renowned for its uniform particle size, high refractoriness, and sharp edges.

Silicon carbide (SiC) powder is a pillar of the advanced material world, widely recognized for its numerous applications in a wide range of sectors.

When it comes to abrasive materials, two contenders stand out in the ring.

Alumina, chemical formula Alz0s. It is a high-hardness compound with a melting point of 2054 ° C and a boiling point of 2980 ° C. It is an ionic l crystal that can be ionized at high temperatures and is often used in the manufacture of refractory materials.

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