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Pyrolytic Boron Nitride (PBN) LEC...
PBN1276
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Pyrolytic Boron Nitride (PBN) LEC Crucible is used in high-purity crystal growth and compound semiconductor processes requiring thermal stability, low contamination and smooth crucible surfaces. Heeger Materials supplies custom dimensions, wall thickness, geometry and protected packing.
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| Purity | 99.99%-99.999% (4N-5N) |
| Size | Per your request or drawing |
| Production Method | CVD |
The Pyrolytic Boron Nitride (PBN) LEC Crucible, with its superior thermal conductivity and expansion coefficients, ensures a stable temperature gradient essential for the Liquid Encapsulated Czochralski (LEC) technique. LEC employs a liquid covering agent to seal the melt and control volatilization for crystal growth, with the LEC Crucible serving as the vessel for this process.
Pyrolytic Boron Nitride (PBN) is an advanced ceramic with up to 99.999% purity and high density, produced via Chemical Vapor Deposition (CVD) using ammonia and Boron halide in high-temperature, high-vacuum conditions (NH3 + BX3 = BN + 3HX). It can be manufactured as plates or directly as final products like crucibles, boats, and coatings.
HM is a leading supplier of high-quality Pyrolytic Boron Nitride (PBN) products, including PBN rings, PBN plates/sheets/discs, PBN crucibles (OLED, MBE, VGF, LEC), PBN rods, PBN heaters, and PBN coatings.

PBN LEC crucibles are selected by growth process, inner diameter, height, wall thickness, shape, purity, thermal cycle and handling requirements. Confirm drawing, furnace compatibility and cleaning needs.
Review Pyrolytic Boron Nitride (PBN) Products, all products and the materials blog.
What should be included in a quote request? Specify PBN crucible type, ID, OD, height, wall thickness, drawing, purity, surface finish, quantity and cleaning requirement.
Can specifications and packaging be customized? Yes. Share dimensions, grade, purity or composition, quantity, documentation and packaging requirements so the supply team can confirm feasibility.
Specification note: Specify PBN crucible type, ID, OD, height, wall thickness, drawing, purity, surface finish, quantity and cleaning requirement.
Catalog No | Application | Inside Diameter | Height | Thickness |
BL-3 | LEC | 3" | 3" | 0.03" |
BL-4 | LEC | 4" | 4" | 0.035" |
BL-5 | LEC | 5" | 5" | 0.035" |
BL-6 | LEC | 6" | 6" | 0.04" |
BL-7 | LEC | 7" | 7" | 0.04" |
BL-8 | LEC | 8" | 8" | 0.04" |
BL-14 | LEC | 14" | 14" | 0.08" |
*The above are standard dimensions, while other sizes can be customized according to specific requirements.
Properties | Units | Values |
Density | g/cm3 | 1.95-2.20 |
Tensile Strength | MPa | 112 |
Bending Strength | MPa | 173 |
Compression Strength | MPa | 154 |
Young's Modulus | GPa | 18 |
Thermal Conductivity | W/m°C | "a" 60 "c" 2 |
Specific Heat | J/g·℃ | 0.90(RT) |
Resistivity | Ω.cm | 2×1015 |
Dielectric Strength | D.C. volts/mm | 2×1015 |
Dielectric Constant |
| "c" 3.07 |
Metal Impurity Content | ppm | <10 |
OLED PBN Crucibles
As the name suggests, these PBN crucibles are used for OLED evaporation processes. They perform reliably at high temperatures, offer strong chemical inertness, and are well known for their thermal stability.
MBE PBN Crucibles
MBE crucibles are designed for molecular beam epitaxy processes. With the inherent inertness and thermal stability of PBN, these crucibles help slow the release of gases during chemical reactions, ensuring a cleaner and more controlled environment.
VGF PBN Crucibles
These crucibles are used for synthesizing materials such as GaAs and Ge. VGF PBN crucibles withstand high temperatures and support controlled crystal growth, helping reduce structural defects and improve crystal uniformity.
LEC BN Crucibles
The growth of GaAs and InP often relies on the liquid-encapsulated Czochralski (LEC) method. PBN LEC crucibles offer stable chemical properties and strong corrosion resistance. They are not easily affected by encapsulating materials, ensuring the slow and steady extraction of high-quality single crystals.
Packaging note: PBN crucibles require individual cushioning and clean packaging to protect edges, surfaces and dimensional integrity.
Pyrolytic Boron Nitride (PBN) LEC Crucible is carefully packaged in carton boxes with foam protection to minimize damage during storage and transportation, and to preserve the quality of our products in their original condition.

Heeger Materials Inc., a professional supplier and manufacturer of high-quality Boron Nitride (BN) Ceramic products, including Pyrolytic Boron Nitride LEC MBE Crucible, leverages extensive expertise in supply and export to offer competitive prices. We provide customized solutions to meet specific requirements, ensuring exceptional quality and customer satisfaction.
Heeger Materials Inc. was established in 2016 in Colorado, USA. We specialize in premium-grade metals, alloys, ceramics, powders, and other materials catering to research, development, and large-scale industrial production in scientific and industrial sectors.
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