Boron Nitride Disk

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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Tolerance

Properties

Reference & Citations

each

Tolerances

Disc

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( % )	Feb-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