CAS No. :10043-11-5
Boron Nitride (BN) powder, often referred to as "White Graphite," is a versatile advanced ceramic material with a unique hexagonal crystal structure. Our high-purity BN powder combines the lubricity of graphite with excellent electrical insulation and high thermal conductivity, making it an essential material for the semiconductor, metallurgy, and cosmetics industries.
1. Consistent Quality: Strict control over particle size distribution (PSD) ensures batch-to-batch consistency.
2. Customization: We can adjust the specific surface area and oxygen content to match your binder system.
3. Supply Chain Stability: Reliable manufacturing capacity for bulk industrial orders.
We offer various grades of BN powder tailored to your specific particle size and purity requirements.
Grade |
BN (%) |
B2O3 (%) |
C (%) |
Total Oxygen (%) |
Si, Al, Ca
|
Cu, K, Fe, Na, Ni, Cr
|
D50 |
Crystal Size |
BET (m²/g) |
Tap Density (g/cm³) |
| CPW-02 | 99 | <0.5 | <0.05 | <0.8 | <30ppm | <10ppm | 2-4μm | 500nm | 12-30 | 0.1-0.3 |
| CPW-05 | 99 | <0.5 | <0.05 | <0.8 | <30ppm | <10ppm | 5μm | <3μm | 13.2 | 0.19 |
| CTW02 | 99.3 | 0.2 | 0.05 | 0.5 | <10ppm | <10ppm | 2-4μm | 1μm | 15~30 | 0.15-0.25 |
| CTW06-H | 99.7 | 0.1 | 0.05 | 0.3 | <10ppm | <10ppm | 6-8μm | 7μm | 4~8 | 0.40-0.60 |
| CTW10-H | 99.7 | 0.1 | 0.05 | 0.3 | <10ppm | <10ppm | 9-12μm | 12μm | 4~8 | 0.35-0.50 |
| CTW20-H | 99.7 | 0.1 | 0.05 | 0.3 | <10ppm | <10ppm | 18-22μm | 12μm | 3~6 | 0.35-0.50 |
| CTW20-W | 99.5 | 0.1 | 0.05 | 0.5 | <10ppm | <10ppm | 20-25μm | 20μm | 0.7-1.5 | 0.40-0.60 |
| CTW50-H | 99.7 | 0.1 | 0.05 | 0.3 | <10ppm | <10ppm | 45-55μm | 12μm | 3~6 | 0.35-0.50 |
| CPN02 | 99 | 0.5 | 0.05 | 1.0 | <10ppm | <10ppm | 2-4μm | 1μm | 15-30 | 0.15-0.25 |
| CPN06-H | 99 | 0.5 | 0.1 | 0.8 | <30ppm | <10ppm | 6-8μm | 7μm | 4~8 | 0.40-0.60 |
| CPN10-H | 99 | 0.5 | 0.1 | 0.8 | <30ppm | <10ppm | 9-12μm | 12μm | 4~8 | 0.35-0.50 |
| CPN20-H | 99 | 0.5 | 0.1 | 0.8 | <30ppm | <10ppm | 18-22μm | 12μm | 3~6 | 0.35-0.50 |
| CPN50-H | 99 | 0.5 | 0.1 | 0.8 | <30ppm | <10ppm | 45-55μm | 12μm | 3~6 | 0.35-0.50 |
Beyond electronics, our BN powder serves a wide range of industries:
1. Metallurgy & Lubrication: Used as a mold release agent for die-casting aluminum and magnesium. It prevents sticking and extends die life.
2. Cosmetics: The "soft-focus" effect of BN powder makes it a premium additive in foundations and skincare products, providing a silky texture and oil control.
3. Coatings: High-temperature protective coatings for welding and aerospace components.
As the demand for high-performance electronics grows, BN powder has become a critical component in the semiconductor manufacturing supply chain.
1. Thermal Management & TIMs
2. Semiconductor Manufacturing Equipment (CVD/PVD)
3. Sintering Additives & Crucibles
In the era of 5G and high-power computing, heat dissipation is paramount. Our BN powder is widely used as a thermally conductive filler in Thermal Interface Materials (TIMs), such as thermal pastes, pads, and potting resins. It allows for efficient heat transfer from chips (CPU/GPU) to heat sinks without compromising electrical isolation.
Due to its high purity and resistance to thermal shock, our BN powder is the raw material for sintering advanced ceramic components used in:
1. PVD/CVD Operations: Protective shields and insulators in vacuum chambers.
2. Wafer Handling: Vacuum chucks and non-marking grippers.
3. Ion Implantation: Source insulators requiring high dielectric strength.
BN powder is essential for manufacturing Boron Nitride crucibles used in molecular beam epitaxy (MBE) and crystal growth. Its non-wetting property ensures that molten semiconductor materials (like GaAs or Silicon) do not stick to the crucible walls, ensuring high yield and purity.
Our h-BN powder is synthesized through a high-temperature reaction, resulting in a pure, white, and chemically inert powder. Unlike graphite, BN powder maintains its stability and lubricity even at extremely high temperatures (up to 900°C in air and 2000°C in inert atmospheres).
Key characteristics of our BN powder include:
1. Superior Thermal Conductivity: Efficient heat dissipation for electronic packaging.
2. Electrical Insulation: High dielectric breakdown strength.
3. Lubricity: Low coefficient of friction, ideal for release agents.
4. Chemical Inertness: Non-wetting to molten metals like aluminum and copper.
Q: What is the difference between Graphite and BN Powder?
A: While both have a hexagonal structure and are lubricious, BN powder is an electrical insulator and white in color ("White Graphite"), whereas graphite is electrically conductive and black. This makes BN powder superior for electronic applications.
Q: Can BN powder be used in high-temperature environments?
A: Yes, BN powder is stable up to 900°C in oxidizing atmospheres and up to 2000°C in inert atmospheres (nitrogen or argon), making it ideal for high-temp metallurgy and sintering processes.
Q: Is your BN powder suitable for thermal paste?
A: Absolutely. Our large-particle and spherical BN powder grades are specifically designed to maximize thermal conductivity in thermal pastes and pads while maintaining low viscosity.
