Pyrolytic Boron Nitride (PBN) Tubes from GESmaterials are manufactured using the Chemical Vapor Deposition (CVD) process, where BCl₃ and NH₃ react at high temperature and low pressure to form an ultra-pure material. This process ensures purity levels above 99.99% with metallic impurities less than 100 ppm, giving PBN tubes a uniform microstructure, near-theoretical density, and excellent mechanical strength. Compared with standard hot-pressed BN ceramics, PBN tubes exhibit superior purity, durability, and thermal shock resistance.

Key Features

• Ultra-High Purity: >99.99%, ensuring contamination-free processes.
• Outstanding Thermal Stability: Reliable performance up to 2000 °C in inert atmospheres.
• Excellent Thermal Shock Resistance: Withstands rapid heating and cooling cycles.
• Superior Chemical Resistance: Inert against most molten metals and corrosive environments.
• Low Outgassing: Suitable for UHV and semiconductor applications.