Pyrolytic Boron Nitride is an advanced ceramic material, produced by CVD process. Compared with normal boron nitride material, PBN has much better purity level and advantages. It is an ideal material for crystal growing and high vacuum processes.
PBN can be easily machined into shapes for use as crucibles, boats, plates, tubes and bottles, and other applications.
Key Applications:
● OLED Production
● MOCVD Heater
● Polycrystalline Synthesis
● Molecular Beam Epitaxy (MBE)
● Compound Semiconductor Crystal Growth
● Satellite Communication TWT
Specifications:
| Item | Unit | Value | ||
| Density | g/cm3 | 1.95-2.20 | ||
| Lattice Constant | μm | a: 2.504×10-10 c: 6.692×10-10 | ||
| Volume Resistivity | Ω·cm | 3.11×1011 | ||
| Tensile Strength (ab) | N/mm2 | 153.86 | ||
| Bending Strength | c | N/mm2 | 243.63 | |
| ab | N/mm2 | 197.76 | ||
| Elastic Modulus | N/mm2 | 235690 | ||
| Thermal Conductivity | 200℃ | W/m·k | a: 60 | c: 2.6 |
| 900℃ | W/m·k | a: 43.7 | c: 2.8 | |
| Dielectric Strength (at room temperature) | KV/mm | 56 | ||
DMCERA® PBN MBE Crucible
Molecular beam epitaxy (MBE) is a common process for gallium GaAs crystal production and PBN is the ideal material to make MBE crucibles.
Advantages:
● Non-toxic.
● Non-wetting
● High purity(＞99.99%).
● High thermal conductivity.
● High electrical resistance.
● Excellent thermal shock resistance.
● High working temperature (＞2000℃).
● Non-reactive to most other compounds.
DMCERA® PBN VGF Crucible
Vertical gradient freeze method (VGF) is a popular technology for crystal production and the PBN VGF crucibles
are specialized consumption for this type of process.
Advantages:
● Non-toxic.
● Non-wetting
● High purity(＞99.99%).
● High thermal conductivity.
● High electrical resistance.
● Excellent thermal shock resistance.
● High working temperature (＞2000℃).
DMCERA® PBN LEC Crucible
PBN LEC crucible are basically a simple cylinder shape crucible used in LEC (Liquid encapsulation czochralski) crystal growth facility.
Advantages:
● Non-toxic.
● Non-wetting
● High purity(＞99.99%).
● High thermal conductivity.
● High electrical resistance.
● Excellent thermal shock resistance.
● High working temperature (＞2000℃).
DMCERA® PBN Sheet
PBN sheets can be machined to many kinds of shape parts. They are widely used in high temperature and vacuum environment.
Advantages:
● Non-toxic.
● Non-wetting
● High purity(＞99.99%).
● High thermal conductivity.
● High electrical resistance.
● Excellent thermal shock resistance.
● High working temperature (＞2000℃).
DMCERA® PBN Rod
PNB rod can be used to TWT support rod.
Advantages:
● Non-toxic.
● Non-wetting
● High purity(＞99.99%).
● High thermal conductivity.
● High electrical resistance.
● Excellent thermal shock resistance.
● High working temperature (＞2000℃).
DMCERA® PBN Coating
PBN coating can protect the graphite substrate and improve the oxidation and chemical resistance of the element.
Advantages:
● High insulation.
● Excellent corrosion resistance.
● Strong adhesion, not easy to fall off
● Effectively prevent volatilization of substrate
