PBN Ceramic

Pyrolytic Boron Nitride (PBN) Description


The so-called pyrolytic boron nitride (PBN for short) is closely related to β-boron nitride, a kind of boron nitride ceramic. It is produced by the chemical vapor deposition process to create its solid body and all the boron nitride crystals grow parallel to the surface on which the vapor is deposited. PBN is also called chemical vapor deposition boron nitride.


Due to the nature of the CVD process, PBN parts generally are requested a wall thickness not more than 3mm. PBN is also a good choice for the extremely high purity of boron nitride. 99.99% is the typical grade. The CVD process gives this pyrolytic boron nitride an almost perfect layered structure, which leads to anisotropic thermal conductivity, making it an ideal material to make crucibles for crystal growing.



Pyrolytic Boron Nitride (PBN) Properties


*High purity & density

*High use temperature

*High resistance and good electrical insulation performance

*Non-toxic and odorless

*No react with most molten metals, semiconductors, and their compounds

* Smooth surface, no pores, and not wet with most semiconductor melts.


Pyrolytic Boron Nitride (PBN) Applications


* Refractory crucibles, plates or dishes

*Manufacture of OLED products

*Cleaning of rare earths or other metals

*Evaporation of pure metals in an ultra-high vacuum

*Crystal growing


Pyrolytic Boron Nitride (PBN) Products


PBN crucibles

PBN sheet/disc

PBN tube

PBN machined products