Boron-Nitride (BN) ceramics

Bór-nitrid (BN) kerámiák

Boron nitride is a white solid material in the as produced hot pressed form. It is a low porosity solid. It is easily machined into complex shapes using standard carbide tooling. The material is anisotropic in its electrical and mechanical properties due to the hexagonal crystals and their orientation during the hot press consolidation. Due to the densification method used, the physical properties of the material are different according to the perpendicular and parallel axis to the direction of sintering. Boron nitride is non-toxic.

Available Boron Nitride grades:

  • NB: Boron Nitride with binder, machinable
  • NB HP: high purity Boron Nitride without binder, machinable
  • NB HD: high density Boron Nitride, sintered

Characteristic of Boron Nitride products

  • High thermal conductivity
  • Low thermal expansion
  • Excellent thermal shock resistance
  • High electrical resistance
  • Low dielectric constant and loss tangent
  • Chemically inert
  • Microwave transparency
  • Easily machined – non-abrasive and lubricious

Application of Boron Nitride products

  • Plasma arc insulators
  • High temperature furnace fixtures and supports (tubes and insulation sleeves)
  • Soldering and brazing: nozzles, brazing supports
  • Vacuum melting crucibles
  • Protection for casting tools
  • Smelting and sintering crucibles
  • Protection and sheathing for thermocouples and measuring probes
  • Electrical insulation at very high temperatures
  • Electronic parts- heat sinks, substrates, coil forms, prototypes
  • Solar and photovoltaic industry
  • Low friction seals
  • Microcircuit packaging