Pyrolytic Boron Nitride (PBN) Sheet is manufactured via CVD process, achieving 99.99% purity with total impurities below 100 ppm.
Key properties: Withstands >2000°C, excellent thermal shock resistance, high electrical resistivity, and chemically inert.
Typical applications: Semiconductor substrates, high-temperature furnace insulators, microwave/RF components, and vacuum sealing.
Custom thickness: 0.5mm to 4mm. Contact us for other sizes or shapes.
| Property | Value | Unit |
|---|---|---|
| Purity | 99.99% | |
| Density | 2.0 - 2.19 | g/cm³ |
| Max Working Temperature | >2000 | °C |
| Thermal Conductivity (a-direction)* | 60 (at 200°C) / 43.7 (at 900°C) | W/m·K |
| Thermal Conductivity (c-direction)* | 2.6 (at 200°C) / 2.8 (at 900°C) | W/m·K |
| Electrical Resistivity | 3.11 × 10¹¹ | Ω·cm |
| Dielectric Strength | 56 | KV/mm |
| Tensile Strength | 153.86 | N/mm² |
| Bend Strength | 197.76 (a-direction) / 243.63 (c-direction) | N/mm² |
*PBN is anisotropic: a-direction (in-plane) has higher thermal conductivity than c-direction (through-thickness).
PBN sheets from Advanced Ceramic Materials are known for their exceptional purity, thermal stability, and chemical resistance, making them ideal for:
ACM’s PBN Sheets are carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.