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CG MATERIAL

Boron Nitride Rod, BN Rod

Boron Nitride Rod, BN Rod

Boron nitride rod is a type of ceramic material made of boron and nitrogen atoms arranged in a crystal lattice structure. It is a high-performance material with excellent thermal and electrical insulation properties, high strength, and resistance to corrosion and wear.

Boron nitride rods come in different sizes and shapes, with diameters ranging from a few millimeters to several centimeters and lengths varying from a few centimeters to several meters. They can be machined into various geometries, including cylinders, tubes, blocks, and custom shapes.

Boron nitride rods find applications in various industries, including aerospace, electronics, metallurgy, and semiconductor manufacturing. They are used as high-temperature insulators, heat sinks, crucibles, nozzles, and furnace components. They can also be used as a replacement for graphite in some applications due to their high-temperature stability and non-wetting 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 >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 Rod 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 Rod Advantages

BN rod is easily machinable. It has high performances:

– Low wettability to molten metal
– Low dielectric constant
– Relatively high dielectric strength
– 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).
– Chemical Vapor Deposition (CVD)

Boron Nitride Rod Applications

Boron Nitride ceramic from CG Material can withstand high temperature in the high vacuum environment, plus it is chemically inert — 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:

-Evaporator Boats
-Nozzles for nonferrous metals metallurgy industry
-Electric insulators in the vacuum environment
-Insulators for high-temperature furnace
-Spacers for glass melting

Packaging

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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