Silicon Carbide Powder – High Efficiency Abrasive for Industrial Use

Silicon carbide (SiC) is an inorganic chemical compound composed of silicon and carbon that occurs naturally as the extremely rare mineral moissanite; however, mass production began in 1893 in both powdered form as well as crystal form for use as an abrasive.

Black silicon carbide is the go-to abrasive for high precision lapping and polishing applications, thanks to its large crystals, exceptional toughness, dense texture and repeated performance in repeated applications.

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Silicon carbide powder is an extremely hard and wear-resistant material, making it the ideal raw material for manufacturing abrasive materials like grinding wheels and cutting tools. Furthermore, its excellent thermal conductivity and resistance makes it popularly used as an additive component in electronics production processes and semiconductor fabrication.

SiC can be made by heating silica sand with carbon sources such as petroleum coke to high temperatures in an open “Acheson” furnace, producing green or black-colored Silicon Carbide grains with reduced impurities than its lower grade counterpart.

Green or Black Silicon Carbide Powder is mixed with non-oxide sintering aid, known as a binder, to produce a paste. The paste is then compacted and shaped through extrusion (tubes) or cold isostatic pressing, where particles are forced into rigid molds using pressure from multiple directions to form shapes that can then be machined.

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Silicon Carbide Powder’s superior thermal conductivity makes it an invaluable material in various industrial settings, particularly those involved in electronic and semiconductor production, where its ability to withstand high temperatures without becoming unstable is a great benefit.

Materials with high tolerance to damage and thermal shock include acrylic. This versatile material can withstand significant plastic deformation before fracture occurs and boasts low expansion rates with temperature changes.

Black silicon carbide grit, unlike diamond, is extremely tough and versatile; it can be used for applications such as grinding wheels, sandpaper and coated and bonded abrasives for blasting. Thanks to its hardness and excellent chemical and thermal stability it provides an affordable alternative to boron carbide abrasives produced via reaction bonding using pure silica sand and coal as raw materials in brick electrical resistance-type furnaces.

High Resistance to Wear and Corrosion

SiC is one of the hardest synthetic materials, second only to diamond in terms of hardness. This property makes it an attractive material for applications where high performance and durability are key, such as abrasive applications.

we offer both reaction bonded silicon carbide and cemented tungsten carbide products designed to meet specific refractory, chemical, and thermal properties. Reaction bonded silicon carbide is ideal for applications where wear resistance or intricate shapes must be considered; cemented tungsten carbide offers better thermal and chemical insulation properties than its counterpart.

Black silicon carbide’s abrasive properties make it popular in automotive and aerospace industries for honing and lapping components to precise dimensions and finishes, or blasting away corrosion and wear resistance. Furthermore, its exceptional strength and durability enable it to withstand extreme environments while remaining intact, and its corrosion and wear resistance make it known as a blasting abrasive material. Furthermore, its corrosion and wear resistance help prolong component lifespan while decreasing downtime – especially true with tools such as grinding wheels or blasting abrasives that use black silicon carbide blasting abrasives or cutting tools which require constant upkeep or downtime due to corrosion/wear resistant coatings or cutting tools made of this material.

High Resistance to Heat

Silicon Carbide is an extremely hard and lightweight ceramic material with excellent thermal stability and corrosion resistance properties, making it suitable for applications involving high loads, such as industrial machinery and automotive components.

Moissanite, a wide band-gap semiconductor material found naturally as the gemstone moissanite, has been mass produced since the late 19th century for use as an abrasive such as grinding wheels and cutting tools, in refractory linings for pumps, rocket engines and other machinery as wear-resistant parts, rigidity thermal shock resistance and strength are also desirable properties for making telescope mirrors out of this material.

Acheson’s original method for producing SiC remains at the center of modern production for use in abrasives, metallurgy and refractories. Raw materials are heated at high temperatures in an open furnace until an aggregate of green-to-black crystalline SiC forms, surrounded by partially or fully unconverted silica and carbon in the form of petroleum coke.