CG MATERIAL
Boron Nitride Crucible, BN Crucible
Boron Nitride Crucible, BN Crucible
Boron nitride crucibles are containers made of high-purity boron nitride material that are used in high-temperature applications where conventional materials would not be able to withstand the extreme conditions. Boron nitride has a high melting point, excellent thermal shock resistance, and is highly resistant to corrosion, making it an ideal material for use in crucibles for high-temperature chemical reactions.
Boron nitride crucibles are often used in the manufacturing of semiconductors, superconductors, and high-performance ceramics. They are also used in high-temperature research and development, as well as in the production of metals and alloys that require high-temperature processing.
Boron nitride crucibles are available in various sizes and shapes, including cylindrical, rectangular, and conical shapes. They can withstand temperatures up to 2000°C and are highly resistant to chemical attack by acids, alkalis, and molten metals. Additionally, boron nitride crucibles have low thermal conductivity, making them ideal for use in high-temperature vacuum environments.
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 | >1013 Ω·cm | >1012 Ω·cm | >1014 Ω·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 |
Boron Nitride Crucible Available Materials
| Material | Description | Availability |
| BN99 | Hot pressed at high temperature (1900℃). Excellent corrosion resistance and thermal conductivity. Limited wear resistance Self-bonded and high purity(>99%) |
Machinable Blanks Finished Parts |
| BNBO | General purpose material Bonded by boric oxide |
Finished Parts |
| BNCB | Calcium borate bonded boron nitride Enhanced moisture resistance |
Finished Parts |
| BN60 | BN 60%, SiO2 40% | Finished Parts |
| BN40 | BN 40%, SiO2 60% | Finished Parts |
| ZSBN | BN-45%, Zr2O3 45% | Finished Parts |
Boron Nitride Crucible Advantages
– Low wettability to molten metal
– Relatively high thermal conductivity with low thermal expansion
– Relatively high thermal shock resistance
– Extremely high working temperature with proper inert gas protection (>3000C has been recorded).
Boron Nitride Crucible Applications
The high-quality Boron Nitride ceramic from CG Material can withstand high temperature in the high vacuum environment, plus it has excellent corrosion resistance and electrical resistance. Thus, Boron Nitride ceramic product is an ideal choice in a wide range of industries, such as:
– Crucibles for crystal growth
– Break rings for horizontal casting machine
– Insulators for high temperature furnace
– Electric insulators in vacuum system
– Feed through for high voltage equipment
Packaging
We handle our products with care to ensure they remain in their original condition during storage and transportation and to preserve their quality.
