Hexagonal Boron Nitride Powder
Hexagonal Boron Nitride Powder
Description
Hexagonal Boron Nitride (hBN) powder is a type of boron nitride material that is characterized by a hexagonal crystal structure, similar to graphite. It is often referred to as "white graphite" due to its white, powdery appearance and layered structure.
hBN powder has a wide range of applications in various industries, including electronics, ceramics, lubricants, and cosmetics. In electronics, hBN powder is used as a dielectric material for insulating components and as a thermal management material for high-power electronic devices. In ceramics, hBN powder is used as a filler material to improve the thermal and mechanical properties of ceramic components. In lubricants, hBN powder is used as a solid lubricant due to its low friction coefficient and chemical stability. In cosmetics, hBN powder is used as a filler material to improve the texture and consistency of cosmetic products.
One of the key properties of hBN powder is its high thermal conductivity, which is comparable to that of copper. This makes it an ideal material for use in thermal management applications, where it can be used to dissipate heat away from high-power electronic components. hBN powder also has excellent chemical stability, which allows it to withstand harsh environments and corrosive chemicals.
Hexagonal Boron Nitride (hBN) is a type of crystal made up of nitrogen atom and boron atom, also referred to as white graphite are non-abrasive, white powders with a hexagonal platy crystal structure similar to graphite,but with a much higher oxidation resistance at 800oC. Its theoretical density:2.27g/cm3, specific gravity:2.43, Moh’s hardness:2. Boron Nitride powders have high thermal conductivity, low coefficient of friction, high dielectric constant and are chemically inert.
Advantages:
● High volume resistance.
● High thermal conductivity.
● High thermal shock resistance.
● Lubrication performance.
● Low reactivity with molten metal.
● Low reactivity with gases, solvents.
● High melting point, approximately 3,000°C (Sublimation).
Applications:
● Lubrication and mold release.
● Filler for resin addition.
● Release powder for sintering of ceramics.
● Make paint for heat resistant and corrosion resistant.
Crystal Type | BN(%) | B2O3(%) | C(%) | O(%) | Particle Size(D50) | BET(m2/g) | Tap Density(g/cm3) |
BN-TYPE1 | >99 | ＜0.6 | 0.1 | <0.8 | 2-4μm | 15-25 | 0.2-0.3 |
BN-TYPE2 | >99 | ＜0.5 | 0.08 | <0.6 | 4-6μm | 8-20 | 0.25-0.35 |
BN-TYPE3 | >99 | ＜0.5 | 0.08 | <0.6 | 7-9μm | 6-16 | 0.3-0.5 |
BN-TYPE4 | >99 | ＜0.3 | 0.05 | <0.5 | 14-20μm | 6-15 | 0.3-0.5 |
BN-TYPE5 | >99 | ＜0.3 | 0.05 | <0.4 | 40-60μm | 5-12 | 0.4-0.6 |
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