The Boron Nitride Advantage

Boron nitride is a high temperature ceramic that has a structure similar to graphite. Our portfolio of hot-pressed solid materials includes pure hexagonal boron nitride as well as composites suitable for applications requiring excellent thermal properties combined with electrical isolation.

Easily machinable and fast availability make boron nitride an outstanding choice for prototypes to large quantities requiring its unique properties.

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Boron Nitride – BN

The BN portfolio of components features a variety of high purity hexagonal boron nitride (hBN) materials. These materials are used in a variety of applications including high temperature electrical insulators, refractory components, semiconductor equipment, and crucibles.

Boron Nitride Component Solutions for Demanding Applications

With a thorough understanding of our customers’ process and application challenges, we proactively address technical problems to deliver productivity and reliability for our customers in aerospace, electronics, process and metals manufacturing industries.

Our drive for success, enabled through our advanced materials sciences, application knowledge, and design expertise, results in a broad portfolio of innovative, customer solutions designed to meet our customers’ unique needs.

FAQs for Boron Nitride

  • Boron nitride (BN) is a high-temperature ceramic material composed primarily of boron and nitrogen.  The Kennametal Sintec portfolio specializes in a full offering of hexagonal boron nitride (h-BN) and a range of composites such as BN-AIN, BN-SiO2, and BN-SiC, as well as pyrolytic boron nitride (PBN). 

  • High thermal conductivity: Excellent thermal conductivity makes it an ideal material that effectively dissipates heat.
  • Excellent chemical resistance: Exhibits minimal deterioration caused by a variety of substances including molten salts.
  • Excellent non-wetting properties: Not wetted by most molten metals.
  • Good electrical insulator: The dielectric strength of up to 100kV/mm and resistivity in the range 10^14 ohm*cm makes it one of the best insulating materials for manufacturing components.
  • Lubricity: Functions well as a dry lubricant due to its low friction.
  • High service temperature: Due to its heat resistance properties, it can withstand extremely high temperatures in vacuums or inert atmospheres.
  • Thermal shock resistance: Low thermal expansion makes it a good candidate for resisting thermal shocks or high-temperature gradients.
  • Low dielectric constants: An excellent insulator for electronic applications to help minimize electrical losses and ensure the efficient transmission of signals. Offers values in the range of 4 – 5 @ 1 MHz.

 

  • Electronics: Has applications in heat sinks for CPUs, LEDs, and other electronic components.
  • Metalworking: Functions as a mold release agent or lubricant for metal forming processes. Mixed with ZrO2 and SiC, it can be used as atomizing nozzles for powder manufacturing or as side dams and break rings for continuous casting.
  • Coatings: Applied to tools and machinery components, it can be used to support wear resistance and lubrication.
  • Ceramics: Can be used as a crucible for non-oxide ceramic production.
  • High-temperature vacuum furnaces: Excellent electrical isolation and high temperature capabilities make it an ideal material for use in vacuum furnaces.
  • Physical Vapor Deposition (PVD): Insulating shrouds and rails can be employed in PVD equipment to ensure proper direction of the arc towards the target.
  • Hall effect thrusters: Used in discharge channels as the material of choice due to having all the properties needed to work with high-temperature plasma in space.
  • Evaporator Boats: A composite with TiB2 is an ideal material for resistive evaporation of aluminum and various other metals to create thin film coatings.

  • It is one of the best insulators, with dielectric strength up to 100 kV/mm and resistivity in the range 10^14 ohm*cm.

  • In powder form, it is available in micron size platelet or agglomerates for applications including thermal fillers and lubricants.
  • Large blocks, rods, and plates.
  • Finished machined parts.

  • Typically known as white graphite, both boron nitride and graphite are good lubricants and can resist higher temperatures in vacuum and inert atmospheres. Boron nitride has the added benefit of electrical isolation properties.
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