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Boron Nitride Composite BN-AlN Ceramic

Boron Nitride Composite BN-AlN Ceramic

Boron Nitride Composite BN-AlN Ceramic is a type of high-performance ceramic material that is made from a combination of boron nitride (BN) and aluminum nitride (AlN) powders. It is produced through a high-temperature and high-pressure sintering process, resulting in a ceramic material with exceptional thermal and mechanical properties.

BN-AlN ceramic has a unique combination of high thermal conductivity, high electrical insulation, and excellent mechanical strength, making it a highly desirable material for a variety of industrial and electronic applications.

The addition of aluminum nitride to boron nitride creates a composite material with enhanced thermal conductivity, improved mechanical strength, and increased resistance to thermal shock. The combination of these properties makes BN-AlN ceramic ideal for use in high-temperature applications, such as heat exchangers, high-temperature furnaces, and electronic packaging.

BN-AlN ceramic is also highly resistant to chemical attack, making it an ideal material for use in harsh environments. Its exceptional electrical insulation properties make it a popular choice for electronic components, high-voltage insulators, and other electrical applications.

BN-AlN ceramic is available in a range of shapes and sizes, including plates, tubes, and custom shapes. Its properties make it a versatile material that is used in industries such as aerospace, semiconductor manufacturing, metallurgy, and automotive manufacturing.

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
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

Comparison of Boron Nitride Ceramics

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)
Inert Gas;
High Vacuum










Flexural Strength 75 Mpa 100 Mpa 130 Mpa
Compressive Strength 100 Mpa 300 Mpa 250 Mpa
Coefficient of Thermal Expansion
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


Composite Ceramic BN-AlN Specifications 

Grade BN-AlN
Compositions BN+AIN
Binder AlBO3
Density 2.5-2.6 g/cm3
25°C Volume Resistivity >1014 Ω·cm
Max. Service Temp. (°C) 900 (Oxygen)
2100 (Inert Gas)
1900 (High Vacuum)
Flexural Strength 130 Mpa
Compressive Strength 250 Mpa
Coefficient of Thermal Expansion (25-1000°C) 4.5 10-6/K
Thermal Conductivity 60 W/mK


Composite BN-AlN Ceramic Applications

• Insulation
• Semiconductor equipment components
• Molded glass fixture material
• Used as bearings and gears


We handle our products with care to ensure they remain in their original condition during storage and transportation and to preserve their quality.


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