Wurtzite Boron Nitride (WBN)

Wurtzite Boron Nitride is a new superabrasive material that is manufactured by detonation. It is the next step in the boron nitride generation which includes a well-known superabrasive - cubic boron nitride, as well as, a graphite similar in structure - hexagonal boron nitride. This new material has a polycrystalline structure that provides superior cutting properties and, moreover, sharpens itself during cutting. Polycrystalline structure means plenty of crystals are bonded chemically together that work at the same time. In this case the material removal rate and finishing level of the Wurtzite Boron Nitride cannot be compared to even the cutting characteristics of other well-known materials.

Material description and application examples:

Wurtzite Boron Nitride can be produced in two different particle shapes: plate and regular crystal.

Wurtzite Boron Nitride with plate shape particles is used as a raw material for sintering coarse grit polycrystalline structure powders, which are later used for manufacturing traditional cutting and grinding tools. The cutting inserts made from Wurtzite Boron Nitride material have high shock resistant properties superior to regular polycrystalline CBN.

Wurtzite Boron Nitride with regular crystal shape particles is the perfect material for steel polishing applications, such as, molds, dies, etc.

Technical data

Appearance (dry state):
Light gray
Chemical composition:
Standard Grade
Premium Grade
Boron Nitride
< 98.00 %
< 99.00
< 95.00 %
< 98.00
Hexagonal structure Boron Nitride
> 3.00 %
< 1.00
> 0.30 %
> 0.15
Boron Anhydride
> 0.15 %
> 0.10
> 0.10 %
> 0.05
> 0.50 %
> 0.30
Non-determined mixtures
> 0.95 %
> 0.40
Physical data:
Particle size:
0-10 um. Fine graded powder is available.
Specific surface:
7 m2/g
Polycrystalline, with block size < 0.1 um

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