Physical properties of silicon carbide  

Silicon carbide is widely used, what are the physical properties:  

Density: The particle density of various silicon carbide crystal forms is very close, generally felt to be 3.20 g / mm3, the silicon carbide abrasive of course stacking density is between 1.2--1.6 g / mm3, its height lies in the particle size number, particle size synthesis and particle shape;  

Hardness: Silicon carbide has a Mohs hardness of 9.2, a microdense hardness of 3000--3300 mm2, and a nuop hardness of 2670-2815 kg/mm, which is higher than corundum in abrasives and second only to diamond, cubic boron nitride and boron carbide. Thermal conductivity. The thermal conductivity of silicon carbide products is very very high, the thermal expansion parameters are small, the thermal shock resistance is very high, and it is a refractory material;  

Electrical properties: industrial silicon carbide at constant temperature is a semiconductor and is impurities conductive. High-purity silicon carbide decreases with the increase of air temperature, and the impurities containing silicon carbide are different according to its impurities, and the conduction motor energy is also different.  

The above are some suggestions, hope to help everyone!  

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