Boron Nitride Gasket (BN Sealing Element)
We provide standard products & tailor-made products for hot-pressed
boron nitride gasket. Except for pure BN99 blank, we also supply BN
composites with silicon carbide, calcium borate, aluminum nitride
and zirconia, to fulfill various of demand for the customers. Check
the boron nitride specifications for our pure BN99 and zirconia
composite material ZSBN.
Boron Nitride Gasket Basic Information & Materials
| Material | BN99, BN60, ZSBN, BN-AlN, HBR, ZSBN |
| Molecular Weight | 24.82 |
| Appearance | White |
| Melting Point | 2973 °C |
| Density | 2.1 g/cm3 (h-BN); 3.45 g/cm3 (c-BN) |
| Solubility in H2O | Insoluble |
| Refractive Index | 1.8 (h-BN); 2.1 (c-BN) |
| Electrical Resistivity | 13 to 15 10x Ω-m |
Boron Nitride Materials
| Material | Description |
| BN99 | Hot pressed at high temperature (1900℃).
Excellent corrosion resistance and thermal conductivity. Limited
wear resistance
Self-bonded and high purity (>99%) |
| BNBO | General purpose material
Bonded by boric oxide |
| BNCB | Calcium borate bonded boron nitride
Enhanced moisture resistance |
| BN60 | BN 60%, SiO2 40% |
| BN40 | BN 40%, SiO2 60% |
| ZSBN | BN-45%, Zr2O3 45% |
Boron Nitride Gasket Advantages & Applications:
Boron Nitride ceramic from ZG Industries Ceramics Division can withstand high temperature in the high
vacuum environment, plus it has excellent corrosion resistance and
electrical resistance.
-Low wettability to molten metal
-Relatively high thermal conductivity with low thermal expansion
-Relatively high thermal shock resistance
-Extremely high working temperature with proper inert gas
protection (>3000C has been recorded).
Based on the above properties, Boron Nitride Tube is an ideal
choice in a wide range of industries, such as:
-Boron Nitride components for PVD, MOCVD, MBE system.
-Insulators for high temperature furnace
-Feed through for high voltage equipment
-Spacers for glass melting
-Boron Nitride parts for ion injection equipment
Packing
As a ceramic material, boron nitride is quite fragile in a lot of
cases. Our Hot-Pressed Boron Nitride Gasket is carefully handled to
minimize damage during storage and transportation. Suitable outer
boxes and inner cushioning materials are used for BN products,
vacuum packing is also engaged for some of the parts.
