Boron nitride plates are flat ceramic components made from boron nitride material. They have a high thermal conductivity, high electrical insulation, and excellent chemical and thermal stability. Boron nitride plates are used in a variety of high-temperature and high-vacuum applications.
| Parameter | Value |
|---|---|
| Density | 1.85-2.0 g/cm3 |
| Young's modulus | 280 GPa |
| Poisson's ratio | 0.17-0.19 |
| Thermal conductivity | 25-180 W/mK |
| Coefficient of thermal expansion (CTE) | 1-4.5 x 10^-6/K |
| Max. service temperature (in air) | 900-1400°C |
| Dielectric strength | 12-70 kV/mm |
| Volume resistivity | >10^13 Ω·cm |
| Dielectric constant | 3-4.1 |
| Fracture toughness | 1.5-3.5 MPa·m^0.5 |
