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Get PriceThe silicon carbide stones and grains are turned into a fine powder by crushing and then purified with halogens 2 Kneading The fine grain sub micron powder is then homogeneously mixed with non oxide sintering aids a binder to form a paste Different binders including organosilicon binders may be used 3 Shape forming
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Get PriceBlack Silicon Carbide SiC is an extremely hard Mohs 9 1 / 2550 Knoop man made mineral that possesses high thermal conductivity and high strength at elevated temperatures at 1000°C SiC is 7 5 times stronger than Al2O3 SiC Powder Applications Abrasives Grinding Sintered Parts Hot pressed Parts Reaction Bonded Parts
Get Price5 The black silicon carbide containing SiC about 95% its toughness is higher than green silicon carbide mostly used in materials processing with low tensile strength such as glass ceramics stone refractory material cast iron and non ferrous metals
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Get PriceGreen Silicon Carbide Specifications Thermal Conductivity High 100 W/m K approximately High strength at elevated temperatures at 1000°C SiC is 7 5 times stronger than Al2O3 SiC has a modulus of elasticity of 410 GPa with no decrease in strength up to 1600°C and it does not melt at normal pressures but instead dissociates at 2700°C
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Get PriceSilicon carbide also commonly known as Carborundum is a compound of silicon and carbon Silicon carbide is a semiconductor material as an emerging material for applications in semiconductor devices Silicon carbide was discovered by Pennsylvanian Edward Acheson in 1891 It is one of the most important industrial ceramic materials
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Get PriceGreen silicon carbide Figure 3 2 a is higher purity than black silicon carbide Green silicon carbide is sharp and friable which makes it a good abrasive It is the hardest of the conventional abrasives and is used to grind less ductile materials of lower tensile strength such as carbides and ceramics
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Get Priceit is widely used for processing low tensile strength material like glass ceramics stone refractory material cast iron and nonferrous metal etc green silicon carbide contains sic about 97% above with good self sharpening so it is used for processing hard alloy titanium alloy and optical glass as well as cylinder jacket and fine grinding …
Get PriceBlack SiC will contain some free silicon and carbon and thus is not as pure as green SiC Black will range in purity from 97 99% pure depending on grit size Green SiC is made from Silica sand and coke and is extremely pure Hexagonally shaped it breaks into very sharp particles Our green SiC is 99% pure exceeding JIS ISO & FEPA standards
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Get PriceSilicon carbide can be used as an abrasive and as a diamond simulant and semiconductor of gem quality as well The simplest process to manufacture the silicon carbide is to combine carbon and silica sand in electric resistance of an Acheson graphite furnace at a high temperature raging from 1 600 °C 2 910 °F and 2 500 °C 4 530 °F
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