Silicon carbide machining

automotiveindustrialfor aeronautics

Silicon Carbide has very good mechanical properties and maintains its strength even at extremely high temperatures. It also has excellent resistance to acids, alkalis, and molten salts up to 800°C. These exceptional properties make SiC suitable in applications requiring great resistance to wear, thermal shock, and corrosion. Top Seiko has extensive experience in precision machining of both Silicon Carbide and Silicon – Silicon Carbide metal matrix composites (Si-SiC MMCs). Similar to Silicon Carbide, MMCs are excellent materials to use when high thermal conductivity and wear resistance are required. Key Properties ■High hardness ■Wear Resistance Due to its high hardness, SiC is extremely resistant to scratches and abrasions. ■High Thermal Stability ■High-temperature strength ■Low thermal expansion ■High thermal conductivity ■High thermal shock resistance SiC can maintain its strength to very high temperatures. It is extremely resistant to thermal shock due to its excellent combination of high thermal conductivity, low thermal expansion, and high strength, and can withstand rapid heating and cooling. ■Chemical resistance SiC is highly resistant to acids, alkali, and reactive gases. Applications ■Parts requiring a high level of scratch resistance such as wafer carriers and wafer tray supports ■Turbine components ■Blast nozzles ■Mechanical Seals & Bearings ■Parts requiring high stability and shape retention at high temperatures ■Heat transfer components used at high temperatures such as heaters, heat sinks, and heat exchangers ■Parts used in chemical environments ■Parts subject to deposit removal with acids or alkali