CG MATERIAL
PBN Strip, Pyrolytic Boron Nitride Strip
PBN Strip, Pyrolytic Boron Nitride Strip
Pyrolytic Boron Nitride (PBN) strip, also known as Pyrolytic Boron Nitride tape, is a high-performance material widely used in the semiconductor, aerospace, and defense industries. PBN strip is made by Chemical Vapor Deposition (CVD) of boron nitride on a substrate under high temperature and low pressure.
PBN strip has excellent thermal stability and high thermal conductivity, making it an ideal material for high-temperature applications, such as thermal insulation, crucibles, and furnace components. PBN strip can withstand temperatures up to 1800°C in a vacuum environment and 1500°C in an oxidizing atmosphere.
In addition to its high-temperature resistance, PBN strip has a low coefficient of thermal expansion (CTE) and excellent electrical insulation properties. These properties make it an ideal material for use in applications where dimensional stability and electrical insulation are critical, such as in the production of semiconductor wafers.
PBN strip is available in various thicknesses and widths and can be easily cut, drilled, and machined into customized shapes and sizes to meet specific application requirements.
Comparison of Boron Nitride Ceramics
| Grade | BN-BO | BN-SZ | BN-AlN |
| Compositions | BN>98% | BN+SiC+ZrO2 | BN+AIN |
| Binder | B2O3 | / | AlBO3 |
| Density | 2.1-2.2 g/cm3 | 2.3-3.0 g/cm3 | 2.5-2.6 g/cm3 |
| 25°C Volume Resistivity | >1013 Ω·cm | >1012 Ω·cm | >1014 Ω·cm |
| Max. Service Temp. (°C) Oxygen; Inert Gas; High Vacuum |
900 2000 1800 |
900 1700 1700 |
900 2100 1900 |
| Flexural Strength | 75 Mpa | 100 Mpa | 130 Mpa |
| Compressive Strength | 100 Mpa | 300 Mpa | 250 Mpa |
| Coefficient of Thermal Expansion 25-1000°C |
2.0 x 10–6/K | 4.0 x 10–6/K | 4.5 x 10–6/K |
| Thermal Conductivity | 30 W/mK | 40 W/mK | 60 W/mK |
PBN Strip Properties
| Compound Formula | BN |
| Molecular Weight | 24.82 |
| Appearance | White |
| Melting Point | 2973 °C |
| Density | 2.1 g/cm3 (h-BN); 3.45 g/cm3 (c-BN) |
| Solubility in H2O | Insoluble |
| Refractive Index | 1.8 (h-BN); 2.1 (c-BN) |
| Electrical Resistivity | 13 to 15 10x Ω-m |
PBN Strip Applications
Boron Nitride ceramic from CG Material can withstand high temperature in a high vacuum environment, plus it has excellent corrosion resistance and electrical resistance. Thus, Boron Nitride ceramic product is an ideal choice in a wide range of industries, such as:
– Crucibles for crystal growth
– Break rings for horizontal casting machine
– Insulators for high temperature furnace
– Electric insulators in vacuum system
– Feed through for high voltage equipment
Packaging
We handle our products with care to ensure they remain in their original condition during storage and transportation and to preserve their quality.
