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Hexagonal Boron Nitride (HBN) Ceramics

Hexagonal boron nitride (HBN) is a white powder. Its crystal structure and physicochemical properties are very similar to graphite, so hexagonal boron nitride is also called “white graphite". HBN has good electrical insulation, thermal conductivity, chemical resistance and lubricity, and has a strong neutron absorption capacity. It is relatively stable to almost all organic solvents and corrosive chemicals, and chemically inert to almost all molten metals.

Hexagonal Boron Nitride Properties:

  • Low density
  • High temperature stability
  • Chemical inertness
  • High thermal conductivity

 

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Hexagonal Boron Nitride Applications

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Your HBN Ceramics Supplier

Advanced Ceramic Materials is a leading supplier of hexagonal boron nitride ceramic products of the highest quality for a wide range of applications. We are happy to provide advice on materials, design, and application. Feel free to contact us with any questions about HBN or other ceramic materials that are not listed on the website. 

FAQ
Q: What Is the Crystal Structure of HBN?
A: Hexagonal Boron Nitride has a crystal structure similar to that of graphite, with boron and nitrogen atoms arranged in hexagonal layers that are stacked on top of each other. However, unlike graphite, hBN is an insulator with a wide band gap.
Q: How Does HBN Compare to Other Materials with Similar Properties?
A: Hexagonal Boron Nitride is often compared to other materials such as graphite and diamond due to its unique properties. While graphite is a good conductor of electricity and has a low thermal conductivity, hBN has a high thermal conductivity and is an excellent insulator. Diamond, on the other hand, is known for its extreme hardness, while hBN is a good lubricant.
Q: How Is HBN Synthesized?
A: There are several methods for synthesizing Hexagonal Boron Nitride, including chemical vapor deposition (CVD), reactive hot pressing (RHP), and annealing of boron nitride precursors. The most common method for producing hBN in large quantities is through the use of high-temperature and high-pressure conditions.
Q: How Does the Thermal Conductivity of HBN Compare to Other Materials?
A: The thermal conductivity of Hexagonal Boron Nitride is among the highest of any known material, with values ranging from 200-400 W/mK at room temperature. This is comparable to the thermal conductivity of copper and silver, which are some of the best thermal conductors among metals.
Hexagonal Boron Nitride Product Manual
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