Pyrolytic Boron Nitride Tube
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Pyrolytic Boron Nitride Tube is a high-performance ceramic component manufactured through advanced chemical vapor deposition (CVD) technology. Featuring a unique polycrystalline structure with purity typically exceeding 99.99%, it delivers exceptional performance consistency and reliability. NexusX Advanced Materials, as a premier manufacturer and supplier of high-quality pyrolytic boron nitride products, focuses on producing high-precision pyrolytic boron nitride tubes for diverse application fields.
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Pyrolytic Boron Nitride Tube Data Sheet
Purity: | 99.99%-99.999% |
Color: | White |
Density: | 1.95-2.20 g/cm3 |
Production Method: | CVD |
Pyrolytic Boron Nitride Tube Descriptions
Pyrolytic Boron Nitride Tube is a high-purity and high-performance ceramic material. 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. It offers exceptional high-temperature resistance (up to 2000℃), corrosion resistance, and electrical insulation. With a purity exceeding 99.99%, virtually free of impurities, and a smooth, pore-free surface, the PBN tube is ideal for applications in high-vacuum or inert atmospheres.
Pyrolytic Boron Nitride Tube Advantages
- 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.
Pyrolytic Boron Nitride Tube Applications
- Semiconductor Manufacturing: PBN tubes are commonly used as crucibles, substrates, or protective sleeves in crystal growth and deposition processes, preventing contamination and withstanding harsh conditions.
- High-temperature Experiments and Research: Due to their excellent thermal stability and resistance to thermal shock, PBN tubes can be used as reaction tubes or protective sleeves in high-temperature furnaces, vacuum systems, or inert gas environments,
- Metal Smelting and Processing: In metal smelting, PBN tubes are favored for their non-reactivity with most molten metals and excellent chemical stability. They are often used as crucibles or conduits, especially in applications requiring high-purity metals.
- Aerospace and Defense: Due to their lightweight nature, high-temperature resistance, and corrosion resistance, PBN tubes can be used in aerospace for high-temperature structural components or thermal protection materials, such as rocket nozzles or protective covers for high-temperature sensors.
Pyrolytic Boron Nitride Packaging
Pyrolytic Boron Nitride Ceramic products are typically packaged in vacuum-sealed bags to prevent moisture or contamination, and wrapped with foam to cushion vibrations and impacts during transport, ensuring the quality of products in their original condition.
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- SAFETY DATA SHEET (SDS) -Pyrolytic Boron Nitride Tube
FAQ
What is Pyrolytic Boron Nitride Tube??
Pyrolytic Boron Nitride tube is a ceramic tube made of high-purity boron nitrde via Chemical Vapor Deposition (CVD). It offers exceptional thermal stability, chemical inertness, and high thermal conductivity, widely used in semiconductor, optoelectronics, and high-temperature processing.
What are the main applications of pyrolytic boron nitride tubes?
Pyrolytic boron nitride (PBN) tubes are primarily used in Molecular Beam Epitaxy (MBE), Metal-Organic Chemical Vapor Deposition (MOCVD), crystal growth, high-temperature furnace linings, semiconductor diffusion processes, and high-temperature containers in vacuum environments.
What advantages do pyrolytic boron nitride tubes over other ceramic tubes (e.g., quartz, alumina)?
Pyrolytic Boron Nitride tubes offer higher thermal stability (up to 2300℃), lower gas permeability, excellent thermal shock resistance, and non-wetting properties with most metal melts, outperforming quartz and alumina in high-temperature vacuum applications.
What is the maximum operating temperature of pyrolytic boron nitride tube?
In inert or vacuum atmospheres, pyrolytic boron nitride tubes can withstand temperatures up to 2300℃, with a recommended long-term operating temperature below 1800℃ for optimal stability.
Can pyrolytic boron nitride tube be customized in size and shape?
Yes. NexusX Advanced Materials offers customization of diameter, length, wall thickness, and end shapes, along with machining services (e.g., drilling, cutting) to meet specific equipment requirements.
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