Silicon nitride balls are precision ceramic balls made from silicon nitride (Si3N4) ceramic material. They are commonly used in high-temperature and high-stress applications where traditional steel balls may deform or wear out quickly. Some of the features and benefits of silicon nitride balls include:
| Properties | Values |
|---|---|
| Density | 3.2-3.3 g/cm³ |
| Young's Modulus | 200-300 GPa |
| Poisson's Ratio | 0.26 |
| Flexural Strength | 500-1000 MPa |
| Compressive Strength | 3000-4000 MPa |
| Fracture Toughness | 6-8 MPa·m^0.5 |
| Thermal Conductivity | 20-200 W/m·K |
| Thermal Expansion | 2.5-3.2 x 10^-6 K^-1 |
| Maximum Service Temp | 1200-1400 °C (in air) |
| Dielectric Constant | 7-10 |
| Resistivity | 10^14-10^18 Ω·cm |