Low density (3.17g/cm3)
High fracture toughness (7 MPa m1/2)
Excellent flexural strength (850 MPa)
Exceptional thermal shock resistance
High maximum operating temperatures
Silicon Nitride’s Key Applications
Silicon nitride can readily be deployed in some of the world's toughest working environments, owing to its unique intersection of chemical and thermodynamic properties. Hot pressed silicon nitride offers excellent high-temperature performance and is ideal for seal face components challenging conditions, including boiler water reactor pumps, pressurized water reactor pumps, corrosive borated water service, and within rotating bearings.
Pump components comprised of silicon nitride are also used in the oil and gas sector, and throughout the petrochemical industry at large. The chemical integrity of Si3N4 makes it suitable for surfaces within pumps (impellers, shafts, seals, etc.) that routinely come into contact with abrasive slurries and corrosive fluids.