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Innovative Solutions For High-Performance Ceramic Components
Silicon Carbide (SiC) Ceramic Silicon Carbide (SiC) is a high-performance ceramic material with the following outstanding characteristics: 1. Extremely High Hardness and Wear Resistance Mohs hardness 9.2-9.5, second only to diamond and cubic boron nitride (CBN), suitable for extreme wear environments (such as bearings, seals, cutting tools). Wear resistance is superior to alumina (Al₂O₃) and tungsten carbide (WC), with a long service life. 2. Excellent High-Temperature Performance Withstands temperatures up to 1600°C (in air) or even higher (up to 2000°C in an inert environment), superior to most metals and ceramics. Maintains high strength at high temperatures, suitable for hot-end components of aero-engines and gas turbines. 3. Excellent Chemical Stability Resistant to acid and alkali corrosion (except hydrofluoric acid and molten strong alkalis), can be used in chemical reactors, pumps, valves and other corrosive environments. Strong oxidation resistance, a SiO₂ protective layer is formed on the surface at high temperatures, preventing further oxidation. 4. High Thermal Conductivity and Low Thermal Expansion Thermal conductivity (120-200 W/m•K) is close to that of aluminum metal, but the coefficient of thermal expansion (4.5×10⁻⁶/K) is much lower than that of metal, with excellent thermal shock resistance, suitable for rapid cooling and heating environments (such as semiconductor wafer chucks). 5. Good Electrical Properties Can be used as a semiconductor material (band gap 3.2 eV, used in high-temperature/high-frequency electronic devices). High breakdown electric field strength, suitable for high-voltage power equipment (such as SiC MOSFETs, diodes).
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