Silicon carbide mainly has four major application areas: functional ceramics, advanced refractories, abrasives, and metallurgical materials.
(1) As an abrasive, it can be used to make abrasive tools, such as oil stone, grinding head, steel shot and steel grit, sand tile, etc.
(2) As a metallurgical deoxidizer and high-temperature resistant material.
(3) High-purity single crystals can be used to manufacture semiconductors and silicon carbide fibers.
Main application: used for wire cutting of 3-12 inches monocrystalline silicon, polycrystalline silicon, potassium arsenide, quartz crystal, etc. Engineering processing materials for the solar photovoltaic industry, semiconductor industry, and piezoelectric crystal industry.
For semiconductors, lightning rods, circuit components, high-temperature applications, UV light detectors, structural materials, astronomy, disc brakes, clutches, diesel particulate filters, filament pyrometers, ceramic membranes, cutting tools, heating elements, nuclear fuel, jewelry, steel, protective gear, catalyst carrier, and other fields.
SiC is mainly used for the grinding and polishing of grinding wheels, sandpaper, abrasive belts, whetstones, grinding blocks, grinding heads, grinding pastes, monocrystalline silicon, polycrystalline silicon in photovoltaic products, and piezoelectric crystals in the electronics industry.
Taking advantage of the ferroalloy properties of SiC, such as corrosion resistance, high-temperature resistance, high strength, good thermal conductivity, and impact resistance, silicon carbide can be used for various smelting furnace linings, high-temperature kiln components, silicon carbide plates, liners, supports, Saggers, silicon carbide crucibles, etc.
It also can be used as high-temperature indirect heating materials in the non-ferrous metal steelmaking industry, such as vertical tank distillation furnaces, rectification furnace trays, aluminum electrolytic cells, copper melting furnace linings, arc-shaped plates for zinc powder furnaces, and thermocouple protection tubes. etc.; for the production of advanced silicon carbide ceramic materials such as wear resistance, corrosion resistance, and high-temperature resistance; it can also be used to make rocket nozzles, gas turbine blades, etc. In addition, silicon carbide is also one of the ideal materials for solar water heaters on highways and airstrips.
The use of silicon carbide has high-temperature resistance, high strength, good thermal conductivity, and impact resistance. It can be used as high-temperature indirect heating materials, such as hard pot distillation furnaces, rectification furnace trays, aluminum electrolytic cells, copper melting furnace linings, and arcs for zinc powder furnaces. Type plate, thermocouple protection tube, etc.
Using good heat conduction and thermal stability as heat exchangers can reduce fuel consumption by 20%, save fuel by 35%, and increase productivity by 20-30%. It is 6-7 times that of ordinary wear-resistant materials.
Utilizing the characteristics of silicon carbide’s corrosion resistance, thermal shock resistance, wear resistance, and good heat conduction, it is used in the lining of large blast furnaces to upgrade the service life.
The hardness of silicon carbide is only second to that of diamond, and it has strong wear resistance. It is an ideal material for wear-resistant pipes, impellers, pump chambers, cyclones, and mine bucket linings.
Building materials ceramic grinding wheel industry
Making use of its thermal conductivity, heat radiation, and high heat intensity to manufacture thin-plate kiln furniture can not only reduce the capacity of kiln furniture, but also improve the kiln’s loading capacity and product quality, shortening the production cycle, and the best choice for ceramic glaze baking and sintering.