Complaint
Material: Pyrolytic Boron Nitride / PBN 99.99%
Typical Applications:
1. Spectrometre
2. High temperature furnace
3. Crystal growth
4. LEC crucible, VGF crucible, MBE crucible
5. MOCVD insulation plate
6. Heating element
7. Microwave
8. Semiconductor
9. Composite Heater
Boron Nitride (BN) is a white, low porosity refractory material with physical and mechanical properties similar to Graphite. However, unlike Graphite, Boron Nitride has high thermal conductivity and good thermal shock performance. The most common formulation of Boron Nitride contains boric oxide, which can cause Boron Nitride to absorb moisture, resulting in swelling and property degradation.
| Type | 99BN | CBN | ABN | ZBN |
| Main Content | BN>99% | BN>98.5% | BN+AlN | BN+ZrO2 |
| Binder | B2O3 | CaB2O6 | ALBO3 | B2O3 |
| Density (g/cm3) | 1.95-2.0 | 2.0-2.1 | 2.6 | 2.95 |
| Flexural Strength (Mpa) | 30 | 100 | 200 | 200 |
| Compressive Strength (Mpa) | 100 | 280 | 350 | 380 |
| Electrical Resistivity (ohm.cm) | >10^14 | >10^13 | >10^14 | >10^12 |
| Max. Working Temp. (°C) air | 900 | 900 | 900 | 1000 |
Max. Working Temp. (°C) inert gas | 2400 | 2400 | 2100 | 1800 |
| Max. Working Temp. (°C) vacuum | 2200 | 2200 | 1900 | 1800 |
| Thermal Conductivity (W/m.K) | 30 | 35 | 50 | 30 |
| Expansion Coefficient 25 - 1000 °C (10^-6/K) | 1.5 | 2 | 4.5 | 2.5 |
