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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

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)
Inert Gas;
High Vacuum










Flexural Strength 75 Mpa 100 Mpa 130 Mpa
Compressive Strength 100 Mpa 300 Mpa 250 Mpa
Coefficient of Thermal Expansion
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


We handle our products with care to ensure they remain in their original condition during storage and transportation and to preserve their quality.



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