Description of Boron Nitride Blanks (BN Blanks)
Boron Nitride Blanks (BN Blanks) consist of high-purity BN ceramics. Boron Nitride, also known as BN, hexagonal Boron Nitride (H-BN) and hot-pressed Boron Nitride, is a self‐lubricating ceramic that withstands high temperatures and retains its lubricating properties in a high vacuum environment. Hexagonal Boron Nitride (H-BN) exhibits mechanical behaviour comparable to graphite, while offering high electrical resistance.

Specifications for Boron Nitride Blanks (BN Blanks)
Type
|
BN99
(Type AX05)
|
BN-BO
(Type A)
|
BNCB
(Grade HP)
|
BNSIO
(M&M26)
|
BN-AlN
|
ZSBN
|
Composition
|
hBN > 99.5%
|
hBN > 98%
|
hBN > 90%
Calcium borate
|
hBN 40%, SiO₂ 60% (M)
hBN 60%, SiO₂ 40% (M26)
|
BN + AlN
AlBO₃
|
hBN > 45%
ZrO₂ < 45%
Borosilicate < 10%
|
Colour
|
white
|
white
|
white
|
white
|
white
|
grey
|
Density
(g/cm³)
|
1.9
|
2.1
|
2.0
|
2.1–2.3
|
2.5–2.6
|
2.9
|
Properties
|
- Corrosion resistance
- High thermal conductivity
- Resistance to temperature fluctuations
|
- Moisture resistance
- Low thermal expansion
- Spallation resistance
|
- Resistance to thermal shock
- High thermal conductivity
- Moisture resistance
|
- High thermal conductivity
- Resistance to high temperatures
- Machinability
|
- Wear resistance
- Chemical resistance
- Resistance to temperature fluctuations
|
Form
|
Rod
Plate/Sheet
Tube
Crucible
Custom-made component
|
Rod
Custom-made component
|
Custom-made component
|
Custom-made component
|
Custom-made component
|
Nozzle
Custom-made component
|
*For further information please contact us.
Applications for Boron Nitride Blanks (BN Blanks)
- Crucibles for crystal growth
- Evaporator boats
- Break rings for horizontal casting machines
- Components for PVD, MOCVD, MBE systems

Boron Nitride Blank (BN Blank) Packaging
The Boron Nitride Blanks (BN Blanks) produced by SAM are handled carefully to minimise damage during storage and transport, thereby maintaining the quality of our products in their original condition.

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