Pyrolytischer Bornitrid-Stab

Pyrolytischer Bornitrid-Stab

Pyrolytic Boron Nitride Rod is known for its ultra-high purity (up to 99.999%). Unlike conventional hot-pressed boron nitride, it is produced through chemical vapor deposition (CVD) under vacuum conditions, using ammonia and boron halides without the need for traditional hot-press sintering or sintering agents. Its strong resistance to acids, alkalis, and molten metals, combined with high dielectric strength, makes it ideal for semiconductor manufacturing, high-temperature furnaces, and aerospace applications. Advanced Keramik Hub can supply customized solutions for diameter, length, and surface finishes to meet specific requirements.

Pyrolytic Boron Nitride Rod Advantages

• Non-toxic, odorless.
• High purity, exceeding 99.999%.
• Do not react with acids, alkalis, salts, or organic reagents at room temperature; slightly corrodes in molten salt or alkali solutions but is resistant to corrosion by most acids at high temperatures.
• Do not react with most molten metals, semiconductors, or their compounds.
• Exhibits good oxidation resistance below 1000°C.
• Excellent thermal shock resistance, with no cracks observed when immersed in water at 2000°C.
• High operating temperature with no sublimation point; decomposes directly into B and N above 3000°C.
• High electrical resistance and good electrical insulation properties.
• Smooth surface with no pores, does not wet most semiconductor melts.

Pyrolytic Boron Nitride Rod Applications

• Semiconductor Manufacturing: Used as high-purity support or clamping rods for crystal growth (e.g., GaAs, InP) or equipment parts, ensuring a contamination-free environment.
• Microwave and Electron Tubes: Employed as clamping or support rods in high-power microwave components (e.g., traveling wave tubes), leveraging their high dielectric strength and thermal stability.
• High-Temperature Furnace Components: Serve as core rods or support structures in vacuum or inert atmosphere furnaces, withstanding temperatures above 2000°C.
• Experimental Equipment: Act as support materials in high-temperature experimental setups, providing structural stability and corrosion resistance.Luft- und Raumfahrt: Utilized in thermal management systems or lightweight components, benefiting from low thermal expansion and high thermal conductivity.
• Crystal Growth Assistance: Used as auxiliary supports in processes like Molecular Beam Epitaxy (MBE) or Liquid Encapsulated Czochralski (LEC), ensuring precision.