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By certification 
DMCERA® High Purity Boron Nitride
High purity boron nitride is a machinable ceramic and made of the highest purity hexagonal BN powder.It can be used in highest temperature (>2200 ºC) in inert or vacuum environments. DMCERA®BN-HB has the highest purity and highest density in all of pure BN ceramics. It is easy to machine and we can do as customer’s drawings.
Advantages:
● High purity materials (BN>99.5%).
● Binder-less ceramic.
● Good chemical inertness.
● Highest temperature (2300 ºC in inert).
Applications:
● Boron source of solid diffusion.
● Nozzles for specialty alloys.
● Crucibles for high-purity molten metals.
● Components for semiconductor equipment.
● Setter plate(paving plate) for sintering ceramics.
● Insulators and protective tubes for high-temperature furnaces.
Specifications:
Grade |
BN-HB |
|
Compositions |
BN>99% |
|
Binder |
Self Binder |
|
Density |
g/cm3 |
1.9-2.0 |
25°C Volume Resistivity |
Ω·cm |
>1014 |
Max. Service Temp. (°C) |
Oxygen |
900 |
Inert Gas |
2300 |
|
High Vacuum |
1800 |
|
Flexural Strength |
Mpa |
25 |
Compressive Strength |
Mpa |
100 |
Coefficient of Thermal Expansion 25-1000°C |
10-6/K |
0-2 |
Thermal Conductivity |
W/mK |
50 |
http://www.dmcerabn.com/
