Characteristics and application fields of boron nitride powder BN powder
2025-04-07
Characteristics and application fields of boron nitride powder BN powder
Boron Nitride BN is a high-performance ceramic material with unique structure and properties, and is known as "white graphene". According to the different crystal structures, boron nitride is mainly divided into hexagonal boron nitride H-BN and cubic boron nitride C-BN, which are significantly different in performance and application.
Boron Nitride BN is a high-performance ceramic material with unique structure and properties, and is known as "white graphene". According to the different crystal structures, boron nitride is mainly divided into hexagonal boron nitride H-BN and cubic boron nitride C-BN, which are significantly different in performance and application.
Main characteristics of boron nitride powder
Hexagonal boron nitride H-BN
-graphite-like layered structure, low friction coefficient (0.2~0.4), and still maintain lubrication performance at high temperature.
-The melting point is about 3000℃, and it can be used stably above 1000℃ (up to 2800℃ in inert atmosphere).
-Resistant to acid and alkali corrosion (except strongly oxidizing acids), and does not wet most metal melts (such as aluminum and copper).
-High resistivity (> 10¹⁴ Ω·cm) and high dielectric strength, suitable for high-temperature insulation environment.
High thermal conductivity (30 ~ 60 W/m k) and anisotropic (better thermal conductivity along the layer direction).
-The low density is about 2.27 g/cm³, and the advantage of light weight is obvious.
Hexagonal boron nitride H-BN
-graphite-like layered structure, low friction coefficient (0.2~0.4), and still maintain lubrication performance at high temperature.
-The melting point is about 3000℃, and it can be used stably above 1000℃ (up to 2800℃ in inert atmosphere).
-Resistant to acid and alkali corrosion (except strongly oxidizing acids), and does not wet most metal melts (such as aluminum and copper).
-High resistivity (> 10¹⁴ Ω·cm) and high dielectric strength, suitable for high-temperature insulation environment.
High thermal conductivity (30 ~ 60 W/m k) and anisotropic (better thermal conductivity along the layer direction).
-The low density is about 2.27 g/cm³, and the advantage of light weight is obvious.
Cubic boron nitride C-BN
-Ultra high hardness
-Oxidation resistance
-Wear resistance
-Ultra high hardness
-Oxidation resistance
-Wear resistance
Production mode of boron nitride powder
Preparation of hexagonal boron nitride (h-BN)
-chemical vapor deposition (CVD)
2. Preparation of cubic boron nitride (c-BN)
-High temperature and high pressure method (HPHT)
Application field of boron nitride powder
Application of hexagonal boron nitride (h-BN)
-High temperature lubricant
-Release agent to prevent adhesion in glass and metal casting.
-Thermal conductive filler, which enhances the thermal conductivity of plastics and rubber (such as LED heat dissipation substrate).
-Electrical insulating materials, insulating layers in high-voltage equipment and semiconductor packages.
-Cosmetic additives to enhance skin feeling, used for high-end foundation and loose powder.
Application of hexagonal boron nitride (h-BN)
-High temperature lubricant
-Release agent to prevent adhesion in glass and metal casting.
-Thermal conductive filler, which enhances the thermal conductivity of plastics and rubber (such as LED heat dissipation substrate).
-Electrical insulating materials, insulating layers in high-voltage equipment and semiconductor packages.
-Cosmetic additives to enhance skin feeling, used for high-end foundation and loose powder.
2. Application of cubic boron nitride (c-BN)
-superhard cutting tools
-Abrasive abrasives
-Wear-resistant coating
-Heat dissipation of electronic devices
-Neutron absorbing material
-Quantum materials
-superhard cutting tools
-Abrasive abrasives
-Wear-resistant coating
-Heat dissipation of electronic devices
-Neutron absorbing material
-Quantum materials
Nano-boron nitride * can improve the properties of composites (such as enhancing polymer mechanics/thermal conductivity).
With its unique performance combination, boron nitride plays an irreplaceable role in high-end manufacturing, electronics, energy and other fields, and its application scope will be further expanded with technological progress in the future.
With its unique performance combination, boron nitride plays an irreplaceable role in high-end manufacturing, electronics, energy and other fields, and its application scope will be further expanded with technological progress in the future.
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