Pyrolytic Boron Nitride (PBN)
Vital PBN Advantage
Manufactured using advanced CVD technology, Vital’s pyrolytic boron nitride delivers exceptional purity, consistency, and reliability. Our materials are trusted across semiconductor, photovoltaic, and display manufacturing, and complement Vital’s broader portfolio of ultra-high-purity materials, advanced ceramics, and specialty components that support the global advanced-materials supply chain.
Key Features
Engineered for high-performance environments, PBN offers:
- Ultra-high purity (>99.995%) with no metallic contamination
- Exceptional chemical and thermal stability
- Non-porous, gas-tight structure ideal for high-vacuum systems
- High dielectric strength and electrical insulation performance
- Excellent thermal shock resistance
- Safe, non-toxic material that is easy to machine with tight tolerances
- Directional (anisotropic) thermal conductivity suited for crystal-growth and evaporation processes
Applications
PBN delivers exceptional cleanliness, stability, and high-temperature performance across advanced manufacturing. Typical applications include:
Crystal-growth systems
- Precision crucibles and components for VGF, VB/HB, and LEC furnaces
MBE (Molecular Beam Epitaxy)
- Effusion cell crucibles, heater elements, and other high-temperature parts
MOCVD (LED production)
- Plate heaters, susceptors, and insulation components
OLED evaporation
- Crucibles and sources for thin-film organic deposition
Photovoltaics (CIGS)
- Boats, crucibles, and coating-process components
High-temperature electrical insulation
- Plates, rings, and structural parts for vacuum and furnace systems
Flat PBN plates
- Suitable for infrared optics, semiconductor processes, and other precision thermal applications
Typical Properties
(Values represent typical ranges; specific dimensions or geometries may vary.)
- Purity: ≥ 99.995%
- Density: 2.19 g/cm³
- Hardness: 450–500 KHN
- Thermal Conductivity: ~30 W/m·K (parallel to layers)
- Electrical Resistivity: >10¹⁴ Ω·cm
- Dielectric Strength: >56 kV/mm
- Coefficient of Thermal Expansion: 1.6 × 10⁻⁶ /°C (25–1000°C)
- Maximum Use Temperature:
- In vacuum: ~2000°C
- In N₂ atmosphere: ~1900°C
Quality & Safety
Every Vital PBN product is manufactured under ISO 9001 and ISO 14001 certified systems, with full batch traceability and a Certificate of Analysis (COA). Advanced testing validates purity, density, uniformity, and dimensional accuracy to ensure reliable performance in critical applications.