Pyrolytic Boron Nitride Tube
Pyrolytic Boron Nitride Tube
Purity: 99.99%-99.999%
Pyrolytic Boron Nitride Tube is a high-performance ceramic component made through chemical vapor deposition (CVD). It has an ultra-high purity of up to 99.999%. As a leading supplier and manufacturer of premium pyrolytic boron nitride products, we can supply high-quality pyrolytic boron nitride tubes with various specifications and competitive prices, offering customized solutions to meet specific requirements.
Or email us at sales@heegermaterials.com.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
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. Advanced Ceramics Hub can supply customized solutions for diameter, length, wall thickness, and surface finishes to meet specific requirements.
Pyrolytic Boron Nitride Tube 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 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 Material Properties
Pyrolytic Boron Nitride Machining
The Advanced Ceramic Hub machining center is equipped with multiple CNC lathes and CNC milling machines, and it is backed by extensive machining experience. We offer customized pyrolytic boron nitride ceramic products and profiles with extremely tight tolerances, tailored to customer requirements. During the machining process, the following precautions should be observed:
- Pyrolytic boron nitride ceramic materials can be machined using standard high-speed steel cutting tools. For harder and composite materials, carbide or diamond tools are recommended.
- Grinding operations can be performed as needed, and standard taps and dies can be used to machine threads.
- The machining process should always be kept dry, with no need for cutting oils or coolants.
- Cutting tools should be sharp and clean, and tools with negative rake angles should not be used.
- Care should be taken when clamping and securing materials to avoid applying excessive pressure. Climb milling techniques should be used to prevent edge and corner chipping.
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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