CG MATERIAL

PBN Crucible, Pyrolytic Boron Nitride Crucible

Name: PBN Crucible, Pyrolytic Boron Nitride Crucible
Brand: CG MATERIAL
Availability: InStock

Product variants

PBN crucible, also known as pyrolytic boron nitride crucible, is a type of high-performance crucible made of pyrolytic boron nitride (PBN) material. PBN crucibles are characterized by their high thermal conductivity, high purity, and excellent chemical resistance. They are commonly used in high-temperature and high-vacuum applications such as semiconductor, aerospace, and defense industries.

The manufacturing process of PBN crucibles involves pyrolyzing a gas mixture of boron trichloride and ammonia at high temperatures to form a thin film of boron nitride on a graphite substrate. The substrate is then dissolved, leaving behind a pure PBN crucible.

PBN crucibles have several advantages over other types of crucibles, such as graphite and quartz. They have a high thermal shock resistance, allowing them to withstand rapid temperature changes without cracking or breaking. They also have a low coefficient of thermal expansion, which makes them less prone to warping or deformation at high temperatures. Additionally, PBN crucibles have a low outgassing rate, making them suitable for use in high-vacuum environments.

PBN crucibles are available in various sizes and shapes, including cylindrical, rectangular, and custom designs. They can also be coated with graphite or other materials to enhance their properties.

Boron Nitride Ceramics Specification

CG Material production formulations are developed to address the varied application problems in which ceramic components are commonly used. Many industrial applications push the envelope on specific requirements leading to the development of new formulations to successfully address them.

Item No.	Description	Purity	Lot Size
CG-NI05-98	Boron Nitride Powder Particle Size: 3 µm, 200 mesh or 325mesh	BN > 98 %， B2O3 < 0.6%, Ca < 0.015%, Si < 0.12%	100 kg 1000kg Customize
CG-NI05-99	Boron Nitride Powder Particle Size: 3 µm, 200 mesh or 325mesh	BN > 99 %， B2O3 < 0.4%, Ca < 0.01%, Si < 0.10%	100 kg 1000kg Customize

Comparison of Boron Nitride Ceramics

Grade	BN-BO	BN-SZ	BN-AlN
Compositions	BN>98%	BN+SiC+ZrO₂	BN+AIN
Binder	B2O3	/	AlBO3
Density	2.1-2.2 g/cm³	2.3-3.0 g/cm³	2.5-2.6 g/cm³
25°C Volume Resistivity	>10¹³Ω·cm	>10¹²Ω·cm	>10¹⁴Ω·cm
Max. Service Temp. (°C) Oxygen; Inert Gas; High Vacuum	900 2000 1800	900 1700 1700	900 2100 1900
Flexural Strength	75 Mpa	100 Mpa	130 Mpa
Compressive Strength	100 Mpa	300 Mpa	250 Mpa
Coefficient of Thermal Expansion 25-1000°C	2.0 x 10^–6/K	4.0 x 10^–6/K	4.5 x 10^–6/K
Thermal Conductivity	30 W/mK	40 W/mK	60 W/mK

Pyrolytic Boron Nitride Crucible Specification

Catalog No.	PBN0922
Size	5ml~5L
Material	PBN, Pyrolytic Boron Nitride
Standard	LEC, MBE, VGF
Purity	99.99%

Product	Available 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

Pyrolytic Boron Nitride Crucible Applications

Pyrolytic Boron Nitride Crucible from CG Material can withstand high temperature in high vacuum environment, plus, it has excellent thermal conductivity, corrosion resistance and electrical resistance.

Available Pyrolytic Boron Nitride Crucible Products

The PBN crucible product code is composed as follows:

Abbreviations and code:

C conical-shaped crucibles
D double-wall crucibles
Ø lip


Code: PBN 1 Capacity:1 cm³	Code: PBN 2 Capacity:1 cm³

Code: PBN 3 Capacity: 1.5 cm³	Code: PBN 4 Capacity: 2cm³

Code: PBN 5 Capacity : 2 cm³	Code: PBN 6 Capacity : 5 cm³

Code: PBN 7 Capacity : 5 cm³	Code: PBN 8 Capacity :5 cm³

Code: PBN 9 Capacity : 8 cm³	Code: PBN 10 Capacity: 10 cm³

Code: PBN 11 Capacity: 12 cm³	Code: PBN 12 Capacity: 12 cm³

Code: PBN 13 Capacity: 16 cm³	Code: PBN 14 Capacity: 25 cm³

Code: PBN 15 Capacity: 25 cm³	Code: PBN 16 Capacity: 10 cm³

Code: PBN 17 Capacity : 35 cm³	Code: PBN 18 Capacity : 40 cm³

Code: PBN 19 Capacity : 60 cm³	Code: PBN 20 Capacity : 60cm³

Code: PBN 21 Capacity : 70 cm³	Code: PBN 22 Capacity : 75 cm³

Code: PBN 23 Capacity : 80 cm³	Code: PBN 24 Capacity : 82 cm³

Code: PBN 25 Capacity : 85 cm³	Code: PBN 26 Capacity : 125 cm³

Code: PBN 27 Capacity : 130 cm³	Code: PBN 28 Capacity : 150 cm³

Code: PBN 29 Capacity : 155 cm³	Code: PBN 30 Capacity : 160 cm³

Code: PBN 31 Capacity : 200 cm³	Code: PBN 32 Capacity : 200 cm³

Code: PBN 33 Capacity : 200 cm³	Code: PBN 34 Capacity : 420 cm³