XTL sintyron High Purity 99.999% Pbn Pyrolytic Boron Nitride Crucible

Pyrolytic Boron Nitride (PBN) crucibles are advanced ceramic materials widely used in high-temperature and high-purity applications due to their exceptional properties. 

PBN crucibles exhibit a unique combination of physical, chemical, thermal, and electrical properties, making them ideal for demanding applications:

Physical Properties

• Density: 1.95–2.22 g/cm³ 29.

• Helium Permeability: <1×10⁻¹⁰ cm/s, indicating excellent gas tightness.

• Moisture Resistance: No absorption or hydrolysis when immersed in water for 10 days.

Chemical Properties

• Purity: Up to 99.99% BN, with minimal metal impurities (<10 ppm) .

• Chemical Inertness: Resistant to acids, alkalis, salts, and organic reagents at room temperature. Slight corrosion occurs in molten salts and alkalis, but it resists most acids at high temperatures .

• Non-Reactivity: Does not react with most molten metals, semiconductors, or their compounds.

Thermal Properties

• Thermal Conductivity: Anisotropic, with values of 60 W/m·K (parallel to the "a" axis) and 2.6 W/m·K (parallel to the "c" axis) at 200°C 

• Thermal Shock Resistance: Excellent, with no cracking observed even at 2000°C 

• Maximum Temperature: Can withstand up to 2500°C in a vacuum 

Electrical Properties

• Dielectric Strength: 56 kV/mm at room temperature 

• Volume Resistivity: 3.11×10¹⁸ Ω·cm, indicating high electrical insulation 

Applications of PBN Crucibles

PBN crucibles are used in various high-tech industries due to their exceptional properties:

• Semiconductor Industry: For crystal growth (e.g., GaAs, GaP) and molecular beam epitaxy (MBE) .

• Optoelectronics: In the production of LEDs and laser diodes.

• High-Temperature Furnaces: As insulation and structural components .

• Chemical Vapor Deposition (CVD): As substrates or coatings .

• Aerospace: For components requiring high thermal stability and chemical resistance .

Advantages of PBN Crucibles

• High Purity: Ensures minimal contamination in sensitive processes.

• Uniform Thickness: Easily adjustable thickness in both axial and circumferential directions.

• Durability: Long service life even under extreme conditions.

• Non-Toxicity: Safe for use in high-purity environments.

Types

• OLED Crucible: It has the advantages of high temperature resistance, high purity, good heating uniformity, extremely low outgassing rate at high temperatures and good thermal shock resistance. It is used in the OLED evaporation technology.
• VGF Crucible: The vertical gradient freeze crucible is commonly used in the growth of semiconductor single crystals such as gallium arsenide and indium phosphide. It can provide an accurate temperature gradient and a stable growth environment.
• MBE Crucible: The molecular beam epitaxy crucible is used in the molecular beam epitaxy technology. It can precisely control the growth of materials and is used to prepare high-quality semiconductor thin films.
• LEC Crucible: The liquid-encapsulated Czochralski crucible is used to grow large-diameter semiconductor single crystals such as silicon and germanium.

Product details

Conclusion

• PBN Crucibles are ideal for high-purity, high-temperature applications in industries like semiconductors, optoelectronics, and aerospace, where chemical inertness and thermal stability are critical.

• Alumina Crucibles are more suitable for general-purpose applications in metallurgy, ceramics, and laboratory settings, where cost and mechanical strength are more important than extreme purity and thermal performance.

Choosing between the two depends on the specific requirements of your application, including temperature, chemical environment, purity, and budget.

The higher cost of PBN crucibles is justified by their superior material properties, complex manufacturing process, and suitability for high-performance applications. In contrast, alumina crucibles are more affordable due to their simpler production process and broader, less demanding applications. For industries requiring extreme purity, thermal stability, and chemical resistance, PBN crucibles are often the only viable option despite their higher price 

Why choose us

    Liling Xingtailong Special Ceramic Co., Ltd Founded in 1997, is an independent R&D and manufacturing enterprise integrating scientific research and production. "Superior quality, preferential price" is our business purpose. The company mainly produces PBN and BN products. Over the years, the company has been deeply involved in development, and has successively obtained (ISO9001, Alibaba's ten-year-old high-quality supplier, China Manufacturing Network certified supplier, high-tech enterprise certification, gold product enterprise certification, ceramic industry AAA credit unit，product ROHS testing certification, and 6 invention patents.      The company has always adhered to the goal of quality survival, innovative development, honest brand, and meticulous and thoughtful after-sales service. Region, product quality and service are highly recognized by customers.   Striving to be Stronger, hard work and progress. The company initiates a professional responsible person model, continuously improves and innovates, and strives to provide each customer with better and more efficient services.   With strong strength, reasonable price and professional service, We has established long-term cooperative relations with large enterprises at home and abroad. "Excellent quality, preferential price" is our business purpose.   We sincerely look forward to cooperating with more domestic and foreign customers and developing together.

Customer feedback

FAQ

FAQ

Why us?
* Professional manufacturer since 1997.
* Strict quality control on production process and tolerance.
* Free samples available
* Customized production based on your drawing or specification
* On-time delivery and reliable support and service
* Inventory available for quick shipment
* We keep confidentiality of all the drawings and business information between us.
Are you a trading company or a manufacturer?
* We are a manufaturer. 
Can you provide the free samples?
* Yes,we can offer free sample if we have it in stock,but the courier fee is to be collected.
Do you accept customized production based our specification?
* Yes,we offer OEM and ODM service. Just send us your drawing if you have it. If you don’t have a drawing, just tell us your idea, we will work out the drawing for you.

What's the delivery time?
* 7 working days for standard products 30 days for customized products. 
What is the MOQ?
* No limit to the quantity. We can offer the best proposal and solutions according to your condition.
What is the payment terms you accept?
* T/T,LC,Western Union,moneygram are acceptable.
How to deal with the faulty?
* Firstly, Our product are produced in strict quality control system and the defective rate will be less than 2%.
If there are problems with the product, we will provide free replacement.

Tags：Ashes Assay Crucible, Clay Crucible, Gold Assay Crucible, Graphite Crucible, Pyrolytic Boron Nitride Crucible