CG MATERIAL
PBN Heater, Pyrolytic Boron Nitride Heaters
PBN Heater, Pyrolytic Boron Nitride Heaters
Pyrolytic Boron Nitride (PBN) heaters are high-temperature heating elements used in various applications such as semiconductor manufacturing, crystal growth, and advanced materials processing. PBN heaters are made from pyrolytic boron nitride material which is deposited in a high-temperature chemical vapor deposition process.
PBN heaters have excellent thermal stability and high-temperature resistance, making them ideal for use in harsh environments. They can reach temperatures up to 2000°C in vacuum and 1700°C in air. PBN heaters also have excellent chemical stability, low thermal conductivity, and low dielectric constant.
PBN heaters come in various shapes and sizes, including rods, tubes, and custom-designed shapes. They can be used in both horizontal and vertical orientations, making them suitable for a wide range of applications. PBN heaters can also be coated with other materials such as platinum for enhanced performance in specific applications.
Boron Nitride Ceramics Specification
CG Material production formulations are developed to address the varied application problems in which ceramic components are commonly used. Many industrial applications push the envelope on specific requirements leading to the development of new formulations to successfully address them.
| Item No. | Description | Purity | Lot Size |
| CG-NI05-98 | Boron Nitride Powder Particle Size: 3 µm, 200 mesh or 325mesh |
BN > 98 %， B2O3 < 0.6%, Ca < 0.015%, Si < 0.12% |
100 kg 1000kg Customize |
| CG-NI05-99 | Boron Nitride Powder Particle Size: 3 µm, 200 mesh or 325mesh |
BN > 99 %， B2O3 < 0.4%, Ca < 0.01%, Si < 0.10% |
100 kg 1000kg Customize |
Comparison of Boron Nitride Ceramics
| Grade | BN-BO | BN-SZ | BN-AlN |
| Compositions | BN>98% | BN+SiC+ZrO2 | BN+AIN |
| Binder | B2O3 | / | AlBO3 |
| Density | 2.1-2.2 g/cm3 | 2.3-3.0 g/cm3 | 2.5-2.6 g/cm3 |
| 25°C Volume Resistivity | >1013 Ω·cm | >1012 Ω·cm | >1014 Ω·cm |
| Max. Service Temp. (°C) Oxygen; Inert Gas; High Vacuum |
900 2000 1800 |
900 1700 1700 |
900 2100 1900 |
| Flexural Strength | 75 Mpa | 100 Mpa | 130 Mpa |
| Compressive Strength | 100 Mpa | 300 Mpa | 250 Mpa |
| Coefficient of Thermal Expansion 25-1000°C |
2.0 x 10–6/K | 4.0 x 10–6/K | 4.5 x 10–6/K |
| Thermal Conductivity | 30 W/mK | 40 W/mK | 60 W/mK |
PBN Heater Advantages
- PBN composite heating element has an operating temperature to = 1600°C.
- High mechanical durability and dimensional stability.
- Dimensionally compact. PBN layer provides electrical insulation.
- Thermal gradients can be tailored to meet specific requirements.
- Eliminate outgassing and contaminations.
- High thermal shock resistance.
- Chemically inert to almost all metals, liquids and gas.
- Large variety of PG heater and PGN heater shapes available.
PBN Heater Applications
Boron Nitride ceramic from CG Material can withstand high temperature in high vacuum environment, plus it has excellent corrosion resistance and electrical resistance. Thus, Boron Nitride ceramic product is an ideal choice in a wide range of industries, such as:
– Crucibles for crystal growth
– Break rings for horizontal casting machine
– Insulators for high temperature furnace
– Electric insulators in vacuum system
– Feed through for high voltage equipment
Packaging
We handle our products with care to ensure they remain in their original condition during storage and transportation and to preserve their quality.
