Boron Nitride Sheet

Boron Nitride Sheet delivers a unique combination of high thermal conductivity, exceptional electrical insulation, and stability in chemically aggressive and high-temperature environments. Structurally similar to graphite but electrically insulating, it retains strength and lubricity up to elevated temperatures, making it ideal for demanding engineering settings. Its applications span electronics manufacturing, aerospace, and high-performance thermal management systems. Specific uses include dielectric substrates for high-power semiconductor devices, precision thermal interface layers in spacecraft systems, and protective liners in molten metal handling. Research into boron nitride sheets, particularly at the nanoscale, continues to reveal enhanced mechanical and optical properties, enabling innovations in nanocomposites, deep-UV optoelectronics, and advanced protective coatings. In both scientific exploration and industrial deployment, the versatility and performance of boron nitride sheets secure their role as a high-value material for extreme-condition applications.

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Tolerance

Properties

Reference & Citations

each

Tolerances

Foil/Film/Sheet

Thickness		±20%

Material Properties for Ceramics

Chemical Resistance

Element	Value
Acids - concentrated	Fair
Acids - dilute	Fair
Alkalis	Fair
Halogens	Poor
Metals	Good

Electrical Properties

Element	Value
Dielectric constant	4.3
Dielectric strength( kV mm⁻¹ )	40-200
Volume resistivity( Ohmcm )	10¹¹-10¹⁴@25

Physical Properties

Element	Value
Apparent porosity( % )	2-15
Density( gcm⁻³ )	1.9-2.2

Thermal Properties

Element	Value
Sublimation point( C )	2600-2800
Upper continuous use temperature( C )	950-2500
Specific heat( J K⁻¹ kg⁻¹ )	800-2000@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	15-50@20°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	1-36@20-1000°C