Thin Film Materials Logo
Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors
pyrolytic-boron-nitride-crucibles-600x421-1-1

PBN0922 Pyrolytic Boron Nitride Crucible (PBN Crucible)

Catalog No.PBN0922
Size5ml~5L
MaterialPBN, Pyrolytic Boron Nitride
StandardLEC, MBE, VGF
Purity99.99%

TFM offers high-purity pyrolytic boron nitride (PBN) crucibles at competitive prices. We provide LEC, MBE, and VGF crucibles, all manufactured using the CVD process with PBN material. We also offer custom manufacturing, even for small order quantities.

Pyrolytic Boron Nitride Crucible Description

Compared with normal boron nitride crucible, pyrolytic boron nitride crucible has much better purity level. PBN crucibles and other pytolytic boron nitride products are synthesized on the mold by chemical vapor deposition (CVD) process, with BCl3 and NH3 at high temperature and low pressure. The PBN products are extremely pure, as the purity of vapor is easier to be controlled. Most of PBN products made from CVD process have total impurity of less than 100 ppm, which means the purity is better than 99.99%. With such a high purity level, PBN crucibles are ideal products for semiconductor industries.

Similar with graphite, boron nitride has great strength at high temperature. High purity PBN products have even better mechanical properties. As the solid material is formed by CVD process, the density of the products could almost reach the theoretical value. PBN products provided by Stanford Advanced Materials also have great thermal shock resistance. Plates of PBN could be heated to more than 2000 degree and dropped in to water without get broken.

Pyrolytic Boron Nitride Crucible Specifications

                                         
Structure of pyrolytic boron nitride and graphite

Item

value

Unit

lattice constant

a:2.504×10-10     c:6.692×10-10

μ m

density

2.0-2.19

g/cm3

resistivity

3.11×1011

Ω·cm

tensile strength（ab）

153.86

N/mm2

bend strength

c

243.63

N/mm2

ab

197.76

N/mm2

elastic modulus

235690

N/mm2

thermo conductivity

“a” direction    “c” direction

(200℃)

60                  2.60

W/m·k

(900℃)

43.70             2.80

W/m·k

dielectric strength（at room temperature）

56

KV/mm

Pyrolytic Boron Nitride Crucible Available Sizes

ProductAvailable size
 Liquid Encapsulated Czochralski,

PBN LEC crucibles

50ml~5L
Molecular Beam Epitaxy,

PBN MBE crucibles

5ml~300ml
Vertical Gradient Freeze,

PBN VGF crucibles

0.2L~5L
PBN crucible with Graphite body

Pyrolytic Boron Nitride Crucible Packaging

Our high performance pyrolytic boron nitride crucibles are wrapped in foam and packaged in plywood cases to ensure safe storage and transportation.

Reviews

There are no reviews yet.

Be the first to review “PBN0922 Pyrolytic Boron Nitride Crucible (PBN 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