Silicon Carbide Usage

Silicon carbide (commonly referred to as sic) is one of the hardest substances on Earth, ranking 9 on Mohs scale – only diamond and boron nitride outshone its hardness.

Silicon Carbide is widely utilized in electronic devices like Schottky diodes and transistors. Due to its superior ability in handling high voltages and temperatures, silicon carbide makes an ideal material choice for electric vehicle inverter systems and energy storage solutions.


Silicon carbide abrasive materials are crucial in manufacturing industries for their ability to smooth or grind materials, with silicon carbide being one of the more popular choices. Rated 9.1 on Mohs scale and less costly than diamond and boron carbides, silicon carbide abrasives are used extensively for grinding nonferrous metals, finishing tough and hard materials and filling ceramic parts – as well as being found in sandpaper, glass polishing machines, rock tumblers, vitrified and resinoid grinding wheels vitrified and resinoid grinding wheels vitrified and resinoid grinding wheels, sandblasting machines as well as compounds.

Green (99% pure) and black grades of carbon powder are both available, the latter typically produced by grinding raw blocks into a friable powder for use in grinding brittle materials such as glass or carbidoes, while also finding widespread usage in foundries for rough grinding of cast iron.

Silicon carbide’s high hardness and rigidity make it an ideal material for applications involving heavy wear, such as grinding wheels. Furthermore, its heat stress tolerance also makes it useful in applications that experience heat stress such as grinding material. Furthermore, silicon carbide can be added to polymer composites and metal materials to increase thermal conductivity, reduce expansion coefficient, wear resistance, thermal conductivity stabilization of ceramics as well as providing heat stress resistance; furthermore it plays an integral part of modern electric vehicle’s DC fast charging and thermal management capabilities as well.


Silicon carbide (SiC) is one of the hardest materials known, ranking ninth on Mohs hardness scale and competing closely with diamond in terms of hardness. SiC can be used as an abrasive material in grinding, sandblasting and other industrial settings as well as cutting and shaping metals and other hard materials.

As a structural ceramic, SiC stands out as offering excellent wear resistance, thermal conductivity and oxidation resistance even at extreme temperatures – characteristics which make it suitable for applications including petrochemical machinery, microelectronic devices, aerospace components and defense applications. Furthermore, its high temperature strength and creep resistance make SiC an indispensable component for static hot sections in rockets, cars, airplane engines and gas turbines.

Ceramic-reinforced graphite materials are also an integral component of manufacturing ceramic brake discs for use on performance cars and other vehicles, and used in producing bulletproof plate for bank safes and armored vehicles.

Sintered SiC, manufactured through either sintering or reaction bonding processes, boasts superior chemical and mechanical properties at end-use temperatures up to 1,400degC. Available in various shapes and sizes, manufacturers use Sintered SiC to create high-performance products for numerous applications – for instance Saint-Gobain utilizes this advanced refractory material to manufacture lightweight ceramic components for composite armor systems protecting against ballistic threats both current and emerging.


Silicon carbide (SiC) is a third-generation semiconductor material, following silicon (Si), gallium arsenide (GaAs), indium phosphide (InP), and aluminum gallium arsenide (AlGaAs). SiC’s wide energy gap and high power density have revolutionized power electronics technology.

SiC is an atomic compound of silicon and carbon that forms layers with each layer bonded via tetrahedral bonding to form its unique crystal structure, giving each form distinct physical and electrical properties.

Power electronics requires material with certain key attributes to improve electric vehicle (EV) driving distance and digitize industrial processes. For instance, such materials reduce voltage and current losses while improving thermal efficiency – thus drastically decreasing size and weight of essential power electronic components used within EVs.

Elkem SiC is produced in Liege, Belgium at Elkem Processing Services (EPS). Our facility uses state-of-the-art equipment to process raw material that comes from trusted partners before offering finished SiC products such as fine grain powder or cold-pressed/extruded tubes – we even customize blends specifically tailored for customers’ requirements!

Wear-Resistant Parts

Silicon carbide is one of the hardest materials on Earth. Because of this, it has long been utilized in abrasive applications like sand-blasting nozzles and cyclone components due to its exceptional resistance against wear. Chemical inertness, high temperature strength and a low coefficient of thermal expansion also make Silicon Carbide an integral component in metalworking products and refractories.

High voltage resistance makes sapphire an invaluable element of electronics, providing resistance up to 10x greater than ordinary silicon and even outperforming gallium nitride in systems exceeding 1000V. As a result, sapphire circuit elements have found widespread application in electric vehicles, solar power inverters and sensor systems.

Reaction bonded SiC offers exceptional corrosion resistance against aggressive chemicals and high temperatures, making it particularly suitable for bearings or mechanical seals in machinery applications. A solid oxide barrier protects its substrate from direct contact with attacking species, thus slowing or stopping degradation of its material properties.

SiC’s strength allows it to withstand mechanical stresses and vibrations, making it ideal for rollers in steel mills, sand pumps and hydrocyclones, lapidary use and lapidary operations in modern lapidary because of its durability and relatively low cost. All sintered silicon carbide parts undergo thorough tests, inspections and dimension checks after production has taken place.

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