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Silicon Carbide Seal Vs Tungsten Carbide Seal

Tungsten carbide mechanical seals were once the go-to choice, but have since been overshadowed by silicon carbide’s rising popularity. This blog will compare both types and highlight its numerous advantages over its counterpart tungsten carbide mechanical seals. Advantages of this unique material include its premium hardness rating of 9.5 on the Mohs scale, exceptional corrosion resistance, low coefficients of friction and thermal expansion, as well as its exceptional hardness. High Hardness Silicon Carbide (SiC) is one of the hardest materials available for seal faces. This hardness contributes to its exceptional wear resistance and durability, enabling it to withstand high temperatures and frequent movement while remaining chemically inert for use with …

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Alpha Silicon Carbide

Alpha silicon carbide, a hard chemical compound with a hexagonal crystal structure, is often used as an insulation material and in refractories. Due to its density and self-sharpening capabilities, alpha silicon carbide also makes an excellent material for wire sawing applications. Due to its low neutron cross-section and resistance to radiation damage, silicon carbide makes an excellent material choice for nuclear reactor applications and telescope mirrors. Furthermore, silicon carbide makes an attractive material choice when applied as mirror material for astronomical telescopes. Characteristics Silicon carbide is a hard, resilient material designed to withstand high temperatures, pressures and vibration. With an extremely low thermal expansion rate and long-term use in acid, …

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The Synthesis of Silicon Carbide

Silicon carbide (SiC) is one of the world’s premier ceramic materials with numerous industrial applications due to its superior thermal and chemical stability. SiC boasts many desirable characteristics such as high strength and hardness, corrosion resistance, refractoriness and great wear resistance – qualities which have led to widespread adoption worldwide. Edward Goodrich Acheson first synthesized moissanite in 1891 during an attempt to create artificial diamonds, and its natural source is the Canyon Diablo meteorite in Arizona where it’s known by the mineral name moissanite. Chemical Reactions Silicon Carbide (SiC) is a chemical compound made of silicon and carbon that forms an extremely hard hexagonal crystal structure. When in its purest …

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Silicon Carbide Parts

Silicon Carbide (SiC) is an extremely hard crystalline compound composed of silicon and carbon that occurs both naturally as moissanite mineral, as well as being manufactured synthetically as an abrasive. Produced from powder that has been mixed with non-oxide sintering aids, extrusion or cold isostatic pressing (plates and blocks) is used to shape it. This process provides ultimate corrosion resistance, hardness and high strength properties to the material produced. High thermal conductivity Silicon Carbide (SiC) is one of the hardest and most resilient ceramic materials. Combining extreme hardness with excellent chemical stability, high resistance to acids and alkalis and thermal conductivity. Furthermore, SiC offers excellent corrosion, abrasion and erosion resistance …

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Silicon Carbide Schottky Diode

Silicon carbide schottky diodes have become an increasingly popular component in new electronic circuit designs, especially power system applications. Their advantages include increased efficiency levels and faster switching speeds; better form factors for overall circuit designs and lower switching times overall. When metal contacts SiC, a Schottky barrier forms and current flows in one direction only; unlike in traditional P-N junction diodes where electrons and holes both flow. Low Voltage Drop Silicon carbide Schottky diodes, also known as SiC diodes or Carbidorundum diodes, offer many key advantages in power circuit designs. They boast reduced forward voltage drop and faster reverse recovery time compared to traditional PN junction diodes while offering …

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Silicon Carbide – The Technology That Will Power Our Future

Wolfspeed has been at the forefront of silicon carbide for 30 years, becoming market leader with their silicon carbide semiconductor power devices used worldwide in electric vehicles (EV), fast chargers, renewable energy storage solutions and aerospace and defense equipment. Wolfspeed recently extended and enhanced their long-term supply agreement with one of the top global semiconductor companies, providing long-term capacity reservations to meet growing customer demand for silicon carbide power semiconductors. High Voltage High-voltage wide bandgap silicon carbide (SiC) technology is revolutionizing power electronics used in electric vehicles, industrial and grid-tied power supplies, motor drives and renewable energy applications. By significantly reducing power loss in designs for electric vehicles, industrial power …

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A Hot Surface Igniter Is Made From Silicon Carbide

Hot surface ignitors are replacing spark ignition in modern furnaces. Constructed of silicon carbide or silicon nitride with ceramic bases to encase wire connections, 120-volt hot surface ignitors create red-hot glow before arcing over to light the gas in combustion cycles. Engineers who designed these units had some important decisions regarding where the ignitor should be positioned relative to the end of their burners. Ignitor Type Hot surface ignitors are used to ignite combustion gasses in various household and industrial appliances such as furnaces, kitchen ranges and clothing dryers. Made of ceramic material that heats when voltage is applied across its proximal ends, in order to ensure safe operation of …

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Silicon Carbide Armor

Silicon carbide armor is commonly used to defend military and law enforcement personnel against bullets or other high-velocity projectiles, providing crucial protection. It absorbs and dissipates impact energy to help prevent injuries or deaths during high velocity impacts. Material used in this defense solution is proven effective against armor-piercing rounds and high velocity fragments, and provides a lightweight yet resilient option that doesn’t degrade over time. NIJ Certification The National Institute of Justice certification process is an extensive testing protocol designed to measure the ballistic capabilities of body armor. Tests involve firing various projectiles at different velocities at it in order to assess whether it can stop them and protect …

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Silicon Carbide Electrical Conductivity

Silicon carbide electrical conductivity is an indispensable quality in modern high-tech applications, helping drive performance and reliability without degrading function or safety. Thanks to its chemical resistance properties, silicon carbide can operate under extreme conditions without degradation that compromises function or safety. Doping can alter the electrical conductivity of SiC by adding impurities known as dopants to its surface, producing free charge carriers (electrons or holes) which increase its electrical properties. Thermal Conductivity Silicon carbide is an exceptionally hard, durable non-oxide ceramic material with many desirable characteristics, including superior mechanical, chemical, and thermal conductivities, making it suitable for high performance applications. Furthermore, its ability to conduct electricity sets it apart …

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X4 Silicon Carbide

Silicon carbide X4 features high hardness and rigidity, making it suitable for use as a grit in sandpaper or sharpening knives, while being easier to work with than steels that contain Vanadium such as S90V. Conventional computer chips are manufactured by using cooling techniques to solidify pure silicon molten. Unfortunately, this process can sometimes result in flaws requiring fans or gadgets to further cool the chip down. Hardness Silicon carbide is one of the hardest materials used in industrial abrasives. Due to its exceptional hardness, silicon carbide can easily cut through hard metals, glass, and stones with ease, and has almost reached diamond hardness on Mohs scale. As such, silicon …

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