What Is Silicon Carbide Used For?

Silicon Carbide (SiC) is an extremely hard and durable ceramic material with many industrial uses. It offers resistance against corrosion, acids, and high temperatures – which makes it suitable for many different industrial settings.

SiC is used in kiln shelves and furnace linings as a refractory material, while also serving as an abrasive known as carborundum. While SiC can be machined either green or biscuit state, in order to meet tight tolerances it must first be fully sintered first.


Silicon carbide (SiC) is an industry standard abrasive material used in grinding wheels and cutting tools, as well as in sandpaper for metal, stone and wood surfaces. Being hard and sharp enough, SiC abrasives provide ideal sanding solutions when working with materials that are difficult to cut with other types of abrasives.

Aluminum alloy is widely used in the production of industrial cleaning and blasting equipment, such as nozzles and pipes. It possesses excellent corrosion resistance against acids and alkalis, as well as lasting performance even under high-temperature environments – two characteristics which make this metal especially important in plant engineering applications such as pumps and mechanical seals.

Silicon carbide ceramics are an ideal choice for applications requiring extreme temperatures and chemical resistance, such as electrical insulation. Their low melting point makes them resistant to high-temperature damage.

Silicon carbide is an ideal material for electronic devices due to its extraordinary thermal shock-resistant capabilities and ability to operate at higher voltages, enabling designers to construct smaller devices that are both energy efficient and reliable – which explains its rising popularity within the automotive sector for increasing ampacity of power modules.


Silicon carbide can be found naturally in moissanite crystals and also produced artificially since the late 19th century for use as abrasives. As an extremely hard material that rivals that of diamond and boron carbide, silicon carbide stands out due to its excellent chemical stability, corrosion resistance and high temperature oxidation resistance properties – qualities which make it an ideal material for industrial applications that require long-term usage in harsh environments.

Ceramics made of this material boast an array of beneficial physicochemical properties, such as low thermal expansion coefficient and high strength. This makes them suitable for the petrochemical and process engineering industries; ceramic valves and parts for smelting equipment made from them can withstand temperatures up to 1600degC without cracking or warping issues.

Due to its superior mechanical strength and durability, ceramic ball bearings, valves, semiconductor materials and gyroscopes are frequently manufactured from it. Due to these qualities, it’s also being integrated into automotive components for use with electric vehicle power electronics – which requires them to withstand temperatures exceeding 65 degrees. Furthermore, it plays a critical role in non-ferrous metal smelting industry equipment, such as vertical tank distillation furnace trays, rectifification furnaces, aluminum electrolytic cells and copper melting furnace linings; additionally being used to produce high-grade silicon carbide ceramics with excellent properties including chemical corrosion resistance as rocket nozzles and engine components for use within aerospace & aviation industries.


Silicon carbide is an intriguing semiconductor material with unique electrical and thermal properties. This allows it to alternate between functioning as a conductor (like copper wiring) and an insulator ( like polymer insulation covering these wires) during its existence, making it particularly suitable for high voltage power electronics applications, like traction inverters for electric vehicles or DC/DC converters in solar energy systems.

SiC can be converted to power semiconductors by doping it with nitrogen or phosphorus for n-type devices, or beryllium, boron or aluminum for p-type ones. This allows for devices with higher breakdown voltages, faster switching speeds and reduced turn-on resistance compared to more traditional power semiconductors like IGBTs and bipolar transistors.

Due to these benefits, many electronic manufacturers are employing silicon carbide in their products. This trend will likely intensify as society transitions towards electric vehicle manufacturing and renewable energy storage solutions.

Silicon carbide’s unique properties have given rise to groundbreaking solutions that are revolutionizing the power electronics industry. Companies like Silicon Labs are offering isolation solutions tailored specifically for electric vehicle applications, making it easier for manufacturers to build products using SiC. This can increase efficiency of EVs while decreasing energy losses during transmission from battery to motor, leading to more sustainable future for our planet and its people.


Silicon carbide stands out as being exceptionally hard, while also possessing excellent chemical resistance. It can withstand temperatures as high as 1300o F in the presence of hot acidic solutions and alkalis; making it suitable for applications that involve condensing corrosive vapours from carrier gases or separating or condensing vapours from carrier gases. Furthermore, silicon carbide has excellent resistance against all molten metals as well as most hydrofluoric acids.

Silicon carbide, an inorganic ceramic material, is extremely hard and durable, capable of withstanding extreme temperatures up to 1600 degC and high mechanical shocks without suffering wear-and-tear or abrasion damage. As an abrasive in machining processes such as sandblasting, grinding, waterjet cutting etc. it often makes use of silicon carbide. Furthermore, silicon carbide additives may increase cement’s strength.

Silicon carbide’s unique crystalline structure has many uses, from its use in refractories and ceramics for withstanding high temperatures to providing insulation against radiation in nuclear reactors and steelmaking, due to its excellent heat tolerance and low thermal expansion properties. Furthermore, silicon carbide linings for industrial gas turbines as well as high voltage power electronics such as traction inverters often make up parts of their composition.

Edward Acheson first synthesized artificial carborundum in 1891 while working on his process to synthesize synthetic diamonds, when he found small black crystals in an electrically heated melt of silica and carbon he called carborundum (from Latin: “carbido de carburo”). Later found naturally as moissanite mineral formations at Canyon Diablo meteor crater in Arizona.

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