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Boron Nitride Disk

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Composition: BN Form: Disk Material: Boron Nitride CAS Number: 10043-11-5 Commodity: Ceramics Production Method: Hot Pressed
Boron Nitride Disk offers an exceptional combination of thermal stability, oxidation resistance, and electrical insulation, rooted in its unique covalent B–N bonding and layered hexagonal structure. With high-temperature tolerance exceeding 1000 °C in air and excellent thermal conductivity, it serves as both a heat spreader and electrical insulator. These disks are widely applied in metallurgy, high-temperature processing, and electronics manufacturing, where they provide thermal management without electrical interference. Specific uses include acting as substrates for high-power semiconductors, precision components in plasma arc systems, and fixtures in molten metal handling. In research and innovation, boron nitride’s unique combination of dielectric performance and thermal conductivity drives advancements in high-performance composites, semiconductor packaging, and next-generation insulating materials for extreme environments. Its stability and multifunctionality make it indispensable across industrial and scientific applications where performance under extreme conditions is paramount.
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Material Properties

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
Mechanical Properties
Element Value
Tensile modulus( GPa ) 20-35
Shear strength( MPa ) Dec-25
Pultrusions
Element Value
Compressive strength( MPa ) 30-120
each

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Available Configurations

Properties common to all products in this list

Composition: BN Form: Disc Material: Boron Nitride CAS Number: 10043-11-5 Commodity: Ceramics Production Method: Hot Pressed

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Tolerances

Disc
Thickness ±20%