Silicon Nitride
IPS Ceramics’ Silicon Nitride is an extremely tough and durable material used for applications involving extreme temperatures, intense pressures and strong shocks.
Products that Silicon Nitride has been used for include welding-jig fixtures, location pins, and ball bearings for the aerospace industry.
- Highly thermodynamically stable
- Extremely high mechanical strength
- Used in aerospace applications, amongst others
General Overview
IPS Ceramics’ Silicon Nitride (Si3N4) is an extremely tough and durable material. It has an extremely high mechanical strength, hardness, and is very thermodynamically stable.
Silicon Nitride is generally not wetted by molten metals, making it the ideal choice for welding-jig fixtures and location pins. Its high hardness gives exceptional wear resistance for bearings. Other applications include liners for induction heating equipment, plus any ceramic components that are subjected to impact shocks.
Technical Information
| Maximum Usage Temperature | 1200 °C / 2200 °F |
| Bulk Density | 3.2 g/cm³ |
| Open Porosity | < 0.5 % |
| Modulus of Rupture at Room Temperature | 700 MPa |
| Modulus of Elasticity | 300 GPa |
| Thermal Conductivity | 20 W/mK |
| Thermal Expansion at 20 – 1000 °C | 3.3 x10-6/K |
| Volume Resistance | > 1014 Ωcm |
| Dielectric Constant | 7 |
| Dielectric Strength | 15 kV/mm |
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