2014年1月20日星期一

The crystal structure of silicon carbide powder

Feature
Green, crystal H&X white fused alumina suppliers, high hardness, strong cutting ability, stable chemical properties, good thermal conductivity. Microscopic shape of a hexagonal crystal, silicon carbide 9.2 Mohs hardness, Vickers hardness of 3000 - 3300 kg / mm 2, a Knoop hardness of 2670-2815 kg / mm, hardness 3300 kg per cubic millimeter. Higher than corundum abrasives and second only to diamond, cubic boron nitride and boron carbide. Density is generally considered to be H&X garnet 80 mesh g / mm 3, the bulk density of silicon carbide abrasive nature of the 1.2 - between 1.6 g / mm 3, a specific gravity of 3.20 to 3.25. Green silicon carbide based petroleum coke and quality silica as the main raw material, add salt as an additive, smelting electric arc furnace. Hardness between corundum and diamond, corundum higher mechanical strength.

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