CG MATERIAL
Hot Pressed Boron Nitride Crucible (H-BN)
Hot Pressed Boron Nitride Crucible (H-BN)
Hot Pressed Boron Nitride (HPBN) Crucibles are high-performance ceramic crucibles made from hot-pressed boron nitride powder. The hot pressing process results in a material with excellent thermal stability, high thermal conductivity, high electrical resistivity, and excellent machinability. HPBN crucibles are used in a wide range of high-temperature applications in industries such as aerospace, electronics, and metallurgy.
HPBN crucibles are characterized by their high purity, low porosity, and high thermal shock resistance. They can withstand high temperatures up to 2000°C in inert and reducing atmospheres and up to 1000°C in oxidizing atmospheres. HPBN crucibles are also chemically inert and non-wetting, making them ideal for use with molten metals and other reactive materials.
HPBN crucibles are available in various shapes and sizes, including cylindrical, conical, and rectangular. They are commonly used for applications such as melting and casting metals and alloys, chemical analysis, and crystal growth. HPBN crucibles are also used as heating elements in high-temperature furnaces and as insulation materials in vacuum and controlled-atmosphere furnaces.
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 |
Hot Pressed 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 |
Hot Pressed Boron Nitride Crucible Applications
Boron Nitride ceramic from CG Material can withstand high temperatures in a 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.
