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409-21-2
SiC
140602PD
99-99.9%
200mesh-8000mesh
206-991-8
Characteristic
Silicon carbide (SiC), also known as carborundum /kɑːrbəˈrʌndəm/, is a semiconductor containing silicon and carbon. It occurs in nature as the extremely rare mineral moissanite.
Chemical formula：SiC
Molar mass：40.096 g·mol−1
Appearance：Yellow to green to bluish-black, iridescent crystals
Density：3.16 g·cm−3 (hex.)
Melting point：2,830 °C (5,130 °F; 3,100 K)
Solubility：Insoluble in water, soluble in molten alkalis and molten iron
Electron mobility：~900 cm2/V·s (all polytypes)
Magnetic susceptibility (χ)：−12.8·10−6 cm3/mol
Refractive index (nD)：2.55 (infrared; all polytypes)
Application
Synthetic SiC powder has been mass-produced since 1893 for use as an abrasive. Grains of silicon carbide can be bonded together by sintering to form very hard ceramics that are widely used in applications requiring high endurance, such as car brakes, car clutches and ceramic plates in bulletproof vests. Electronic applications of silicon carbide such as light-emitting diodes (LEDs) and detectors in early radios were first demonstrated around 1907. SiC is used in semiconductor electronics devices that operate at high temperatures or high voltages, or both. Large single crystals of silicon carbide can be grown by the Lely method and they can be cut into gems known as synthetic moissanite.
Characteristic
Silicon carbide (SiC), also known as carborundum /kɑːrbəˈrʌndəm/, is a semiconductor containing silicon and carbon. It occurs in nature as the extremely rare mineral moissanite.
Chemical formula：SiC
Molar mass：40.096 g·mol−1
Appearance：Yellow to green to bluish-black, iridescent crystals
Density：3.16 g·cm−3 (hex.)
Melting point：2,830 °C (5,130 °F; 3,100 K)
Solubility：Insoluble in water, soluble in molten alkalis and molten iron
Electron mobility：~900 cm2/V·s (all polytypes)
Magnetic susceptibility (χ)：−12.8·10−6 cm3/mol
Refractive index (nD)：2.55 (infrared; all polytypes)
Application
Synthetic SiC powder has been mass-produced since 1893 for use as an abrasive. Grains of silicon carbide can be bonded together by sintering to form very hard ceramics that are widely used in applications requiring high endurance, such as car brakes, car clutches and ceramic plates in bulletproof vests. Electronic applications of silicon carbide such as light-emitting diodes (LEDs) and detectors in early radios were first demonstrated around 1907. SiC is used in semiconductor electronics devices that operate at high temperatures or high voltages, or both. Large single crystals of silicon carbide can be grown by the Lely method and they can be cut into gems known as synthetic moissanite.
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