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BN1662 Boron Nitride Crucible, BN Crucible

Catalog No.BN1662
SizeVarious
MaterialPure composite boron nitride
Purity99%
ShapeCrucible

Boron nitride crucibles are available in various forms, purities, sizes, and prices. Other customized BN ceramic products are also available upon your requirements.

Introduction

BN1662 Boron Nitride Crucibles are high-performance ceramic crucibles engineered for high-temperature, high-purity processing where chemical inertness and thermal stability are critical. Thanks to the unique properties of hexagonal boron nitride (h-BN), these crucibles are widely used in vacuum, inert-gas, and reactive atmospheres for melting, evaporation, and crystal growth applications in research and advanced manufacturing.

Detailed Description

The BN1662 Boron Nitride Crucible is typically manufactured from high-purity hexagonal boron nitride using hot-pressing or advanced sintering techniques. This process produces a dense, fine-grained microstructure that delivers excellent thermal shock resistance, low wettability to most molten metals, and outstanding chemical inertness.

One of the key advantages of BN crucibles is their non-wetting behavior toward many molten metals and alloys, including aluminum, gallium, indium, and various rare-earth metals. This property minimizes contamination and makes material removal easy after processing. In addition, boron nitride maintains excellent electrical insulation while offering good thermal conductivity, allowing precise temperature control during heating cycles.

Compared with oxide ceramics such as alumina, BN crucibles exhibit superior resistance to thermal cracking and do not react readily with molten metals at elevated temperatures. These characteristics make BN1662 crucibles especially suitable for high-purity evaporation sources, compound synthesis, and laboratory-scale production where material integrity is paramount.

Applications

BN1662 Boron Nitride Crucibles are commonly used in:

  • Vacuum and inert-atmosphere melting

  • Metal and alloy evaporation processes

  • Semiconductor and electronic material research

  • Crystal growth and solidification studies

  • Rare-earth and reactive metal processing

  • High-temperature laboratory experiments

Technical Parameters

ParameterTypical Value / RangeImportance
MaterialHexagonal Boron Nitride (h-BN)Ensures chemical inertness and purity
Purity≥ 99% BNMinimizes contamination
Manufacturing MethodHot-pressed / sinteredProvides uniform density and strength
Maximum Working Temperature~1800 °C (in inert atmosphere)Supports high-temperature applications
Electrical PropertiesExcellent insulationSuitable for electronic processing
WettabilityNon-wetting to most metalsEnables clean melting and easy release

Comparison with Related Crucible Materials

Crucible MaterialKey AdvantageTypical Application
Boron Nitride (BN)Non-wetting, thermal shock resistantHigh-purity metal processing
Alumina (Al₂O₃)High hardness, cost-effectiveGeneral ceramic melting
GraphiteExcellent thermal conductivityNon-oxidizing environments

FAQ

QuestionAnswer
What makes BN crucibles different from alumina crucibles?BN crucibles offer better thermal shock resistance and non-wetting behavior.
Can BN1662 crucibles be used in vacuum?Yes, they are well suited for vacuum and inert atmospheres.
Are custom sizes available?Yes, dimensions and wall thickness can be customized.
Do BN crucibles react with molten metals?BN is highly inert and resists reaction with most molten metals.
How should BN crucibles be handled?Handle carefully to avoid mechanical shock; store in clean, dry packaging.

Available Shapes and Customization

TFM provides a range of custom shapes and dimensions for boron nitride crucibles. The available shapes are described by the following parameters:

 

 

  • A: Top Diameter
  • B: Height
  • C: Bottom Diameter

For customized solutions, please reach out to us with your specific requirements.

Packaging

Our BN1662 Boron Nitride Crucibles are individually cleaned and securely packaged with protective cushioning to prevent chipping or contamination. Each crucible is clearly labeled to ensure traceability and safe handling during storage and transportation.

Conclusion

BN1662 Boron Nitride Crucibles provide a reliable and high-purity solution for demanding high-temperature and vacuum applications. With excellent thermal stability, chemical inertness, and non-wetting behavior, BN crucibles are an ideal choice for advanced research, evaporation processes, and reactive metal handling.

For detailed specifications and a quotation, please contact us at sales@thinfilmmaterials.com.

 

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FAQ

A crucible is a heat-resistant container designed to hold materials during high-temperature processes such as melting, alloying, or chemical reactions. They’re essential in metal casting, laboratory analyses, and even certain thin-film deposition systems.

Crucibles are usually made from ceramics like alumina, zirconia, silicon carbide, or magnesia due to their high melting points and chemical inertness. Graphite and metal (e.g., steel) crucibles are also used for lower temperature applications.

The ideal crucible depends on the temperature and chemical nature of the process. Always select a crucible material with a melting point significantly higher than that of the material being processed and one that is chemically compatible to prevent reactions or contamination.

Always wear appropriate personal protective equipment (PPE) such as heat-resistant gloves, face shields, and aprons. Use proper tongs for handling, ensure adequate ventilation, and follow established protocols to avoid thermal shock and accidental spills.

Prior to use, crucibles are usually “dried” or pre-fired to remove moisture and avoid thermal shock. Some applications recommend a seasoning or “dressing” process to improve performance and extend the crucible’s lifespan.

Crucibles should be stored in a dry, well-ventilated area on wood shelving or other non-abrasive supports—not directly on concrete or metal floors—to avoid damage. They should also not be nested together to prevent chipping or cracking.

Yes, most crucibles are designed for multiple uses if they’re properly maintained and cleaned. However, frequent use at extreme temperatures or for reactive materials may eventually degrade them, in which case replacement is necessary.

Common challenges include cracking from rapid temperature changes (thermal shock), contamination from residual materials, and wear or erosion from high-temperature exposure. Following proper handling and maintenance guidelines helps mitigate these issues.

Allow the crucible to cool completely, then remove any residues with a suitable scraper or chemical cleaner if recommended. Some crucibles benefit from an acid wash to remove stubborn deposits—but always follow the manufacturer’s guidelines to prevent damage.

Ensure the crucible is pre-heated and free of moisture. Load the material slowly and evenly using appropriate tools to prevent splashing or uneven heating. For heavy or large pieces, use tongs or specialized equipment to maintain safety and consistency.

In metal casting, crucibles are used to melt and hold metals for forming alloys or casting components. In evaporation processes (e.g., thin-film deposition), they heat materials to their vaporization point, allowing controlled deposition onto substrates.

Their ability to withstand extreme temperatures and resist chemical reactions makes crucibles indispensable. They enable precise control over high-temperature processes in metallurgy, materials science, and chemical analysis, ensuring product quality and process reliability.

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