Silicon Carbide is a man-made material manufactured through heating silica sand and carbon to high temperatures in the Acheson furnace technique. Silicon carbide is an extremely hard material (Mohs hardness 9.25 ), is chemically inert and does not melt.
Silicon Carbide has a high thermal conductivity, a low coefficient of thermal expansion, is thermal shock and abrasion resistant and has strength at high temperatures. Silicon carbide’s varied properties make it an effective material in many different applications.
Green Silicon Carbide is extremely pure＆extremely hard, coming in at a Knoop 2600. It is typically only used for high tech, critical applications due to its cost. Like black silicon carbide, it will splinter as it breaks down, making excellent for recycling. It is the media of choice for wire sawing and sintering. It also has a high thermal conductivity.
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Silicon carbide mainly has four major application fields, i.e., functional ceramics advanced refractory metallurgical raw material of silicon carbide abrasive and coarse material can have a good supply, cannot calculate high-tech products, and the application of high technology content of nano-sized sic powder short time can't form scale economy as abrasive, abrasive tool can be used to do, such as grinding wheel abrasive grinding head sand tile as metallurgical deoxidizer, such as single crystals of high purity and high temperature resistant material, silicon carbide fiber can be used in the manufacture of semiconductor manufacturing.