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Silicon Nitride (Si3N4) Ceramic

Silicon nitride, mainly consisting of Si3N4 which is tetrahedral structure has excellent mechanical stability and high-temperature strength. These properties make it ideal for use as wear parts for automotive engines and gas turbines. It is used for high speed rotating environments,like bearings, and is being applied in many other diverse applications.

Silicon Nitride (Si3N4) Ceramic

Silicon nitride, mainly consisting of Si3N4 which is tetrahedral structure has excellent mechanical stability and high-temperature strength. These properties make it ideal for use as wear parts for automotive engines and gas turbines. It is used for high speed rotating environments,like bearings, and is being applied in many other diverse applications.

Properties of Silicon Nitride (Si3N4):
Low density (3.2 g/cm3)
High fracture toughness (7 MPam1/2)
Good flexural strength (850 MPa)
Low thermal expansion coefficient (3.2 10-6K-1)
Creep resistance
High hardness
Excellent Wear and Corrosion Resistance
Low-friction and non-magnetic

Typical Silicon Nitride applications include:
Bearing balls and rollers
Cutting tools
Valves, turbocharger rotors for engines
Turbine blades
Glow plugs
Molten metal handling
Thermocouple sheaths
Welding jigs and fixtures
Welding nozzles