Thin Film Materials Logo
Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors
boron-nitride-crucible-1

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.

Boron Nitride Crucibles Overview

Boron nitride crucibles, produced by TFM, are made from ceramic boron nitride (BN). These crucibles are celebrated for their superior thermal properties, including high heat capacity and excellent thermal conductivity. They also feature a low dielectric constant and outstanding dielectric strength. Additionally, BN crucibles are easy to handle and are non-adhesive, making them a highly versatile material with numerous applications.

Boron Nitride Crucible Specifications

Compound FormulaBN
Molecular Weight24.82
AppearanceBlack solid in various forms
Melting Point2973 °C
Density2.1 g/cm3 (h-BN); 3.45 g/cm3 (c-BN)
Solubility in H2OInsoluble
Refractive Index1.8 (h-BN); 2.1 (c-BN)
Electrical Resistivity13 to 15 10x Ω-m
Capacity25ml, 55ml, 75ml, 100ml, 1000ml, and customized

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.

Materials Used for Boron Nitride Crucibles

MaterialDescriptionAvailability
BN99Hot pressed at high temperature (1900C).

Excellent corrosion resistance and thermal conductivity. Limited wear resistance

Self-bonded and high purity (>99%)

Machinable Blanks

Finished Parts

BNBOGeneral purpose material

Bonded by boric oxide

Finished Parts
BNCBCalcium borate bonded boron nitride

Enhanced moisture resitance

Finished Parts
BN60BN 60%, SiO2 40%Finished Parts
BN40BN 40%, SiO2 60%Finished Parts
ZSBNBN-45%, Zr2O3 45%Finished Parts

Typical Applications

TFM’s boron nitride crucibles are ideal for high-temperature applications in vacuum environments due to their excellent corrosion resistance and electrical properties. Common uses include:

  • Crystal growth crucibles
  • Break rings for horizontal casting machines
  • High-temperature furnace insulators
  • Electric insulators in vacuum systems
  • Feedthroughs for high-voltage equipment

Packaging and Delivery

Our BN crucibles are meticulously tagged and labeled to ensure easy identification and quality control. We take great care to prevent any damage during storage and transportation.

Contact Us

For inquiries about pricing or to learn more about TFM’s high-quality boron nitride crucibles, please contact us. We offer a variety of forms, purities, and sizes to meet your needs.

Reviews

There are no reviews yet.

Be the first to review “BN1662 Boron Nitride Crucible, BN Crucible”

Your email address will not be published. Required fields are marked *

Related Products

Related products

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.

Shopping Cart
Scroll to Top