DMCERA® Boron Nitride Rod
Boron nitride belongs to the hexagonal crystal system, a crystal with a flat hexagonal layered structure. Its crystal structure and properties are very similar to graphite. But its color and electrical insulation are different from graphite, so it is also called white graphite. BN has low density and hardness, high melting point, electrical insulation and thermal conductivity performance. It is a high-temperature structural ceramic material with great development potential.
Boron nitride rod is machined from hot pressed boron nitride block. DMCERA produce BN parts in a variety of sizes and bn materials.
Specifications:
Grade | BN-HB | BN-SZ | BN-AN |
Compositions | BN>99% | BN+SiC+ZrO2 | BN+AIN |
Density (g/cm3) | 1.9-2.0 | 2.3-3.0 | 2.5-2.6 |
25°C Volume Resistivity (Ω·cm) | >1014 | >1012 | >1014 |
Max. Service Temp. (°C) | |||
Oxygen | 900 | 900 | 900 |
Inert Gas | 2300 | 1700 | 2100 |
High Vacuum | 1800 | 1700 | 1900 |
Flexural Strength (Mpa) | 25 | 100 | 130 |
Compressive Strength (Mpa) | 80 | 300 | 250 |
Coefficient of Thermal Expansion 25-1000°C (10-6/K) | 0-2 | 4.0 | 4.5 |
Thermal Conductivity (W/mK) | 50 | 40 | 60 |
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Jan 20, 2020
Jan 19, 2020
