Pyrolytic Boron Nitride Tubes
Pyrolytic Boron Nitride (PBN) Tube has a much better purity level and density than normal boron nitride ceramics. PBN Tubes and other pytolytic boron nitride products are synthesized on the mold by chemical vapor deposition (CVD) process, with BCl3 and NH3 at high temperature and low pressure. the PBN products are extremely pure, as the purity of vapor is easier to be controlled. Most of PBN products made from CVD process have total impurity of less than 100 ppm, which means the purity is better than 99.99%. With such a high purity level, Pyrolytic Boron Nitride is ideal products for semiconductor industries.
Similar to graphite, boron nitride has great strength at high temperatures. High purity PBN products have even better mechanical properties. As the solid material is formed by the CVD process, the density of the products could almost reach the theoretical value. PBN products provided by Stanford Advanced Materials also have great thermal shock resistance. Plates of PBN could be heated to more than 2000 degrees and dropped into the water without getting broken.
Resistant to thermal shock, pyrolytic boron nitride excels as a sealant and protects graphite from corrosive atmospheres including most molten metals, acids, and hot ammonia environments. Pyrolytic boron nitride also proves extremely effective as an electrical insulator.
Pyrolytic Boron Nitride Tubes Specification
“a” direction “c” direction
dielectric strength（at room temperature）
Pyrolytic Boron Nitride Tubes Applications
Pyrolytic Boron Nitride Tubes can be used as:
- Compound semiconductor crystal growth
- Wafer processing
- Electronic assembly
- Metallurgical applications
- Thin film manufacturing
Some properties featured in our Performance PBN include
* Good thermal conductivity (thermal stability)
* High insulation resistance
* High dielectric strength over wide temperature ranges.
* Extremely pure
* Non-reactive to most other compounds
* Withstands high temperatures and rapid cooling
* High electrical resistance
Stanford Advanced Materials also provide pyrolytic graphite(PG) products. Click here or send an inquiry for more information.