Description
Hexagonal Boron Nitride (hBN), a remarkable material renowned for its versatile applications and exceptional properties. Often referred to as 'White Graphite' due to its similar crystal structure, hBN offers a unique blend of characteristics, surpassing even graphite in various aspects. Its hexagonal crystal structure not only grants outstanding lubricating properties but also boasts exceptional thermal and chemical stability, making it an indispensable component across industries.
CAS No.: 10043-11-5
EINECS No.: 233-136-6
Chemical Formula: BN
Molecular Weight: 24.82
Crystal Structure: Hexagonal phases
Melting Point: 3000 °C Dissociates
Coefficient of Friction (COF): 0.15 to 0.70
Thermal Conductivity: 0.08 cal/ cm.sec.K (at 293 K, directional average)
Temperature Stability:
1000°C in Air
1400°C in Vacuum
1800°C in Inert atmosphere
MarkNature HBN powders are available in following particle sizes:
50 nm; 5 micron; 8 micron; 15 micron; 30 micron
| Specification: |
HBN-50 Nanometer |
HBN-5 Micron |
HBN-8 Micron |
HBN-15 Micron |
HBN-30 Micron |
| Assay (BN): | 99.5% min. | 98.5% min | 99.0% min | 99.0% min | 99.0% min |
| Free of B2O3: | 0.2 max. | 0.8% max. | 0.3% max. | 0.3% max. | 0.3% max. |
| Moisture: | 0.3% max. | 0.5% max. | 0.3% max. | 0.3% max. | 0.3% max. |
| Particle size (D50): | 50 nm | 5.0 μm | 8.0 μm | 15.0 μm | 30.0 μm |
| Tap density, g/cm3 | 0.1~0.2 | 0.3~0.5 | 0.4~0.6 | 0.5~0.7 | 0.5~0.7 |
| Surface Area(BET): | 15~45 m2/g | 8~20 m2/g | 5~15 m2/g | 1~3 m2/g | 1~3 m2/g |
| Typical Analysis Report | |||||
| O: | 0.20% | 0.5~1.0% | 0.40% | 0.20% | 0.20% |
| Cd: | 2ppm | 2ppm | 2ppm | 2ppm | 2ppm |
| Pb: | 2ppm | 2ppm | 2ppm | 2ppm | 2ppm |
| Hg: | 2ppm | 2ppm | 2ppm | 2ppm | 2ppm |
| Cr: | 2ppm | 2ppm | 2ppm | 2ppm | 2ppm |
| As: | 10ppm | 10ppm | 10ppm | 10ppm | 10ppm |
Key Features:
- Superior Lubrication: Offers unparalleled lubricating properties surpassing graphite.
- Chemical Inertness: Exhibits excellent resistance to chemical reactions.
- Thermal Conductivity: Ensures efficient heat dissipation.
- Electrical Insulation: Acts as a reliable electrical insulator.
- High Temperature Stability: Maintains structural integrity in extreme heat.
- Low Thermal Expansion: Minimal expansion under temperature fluctuations.
- Non-Wetting Properties: Resists wetting by various metals, glasses, and salts.
- High Load Bearing: Withstands heavy loads without compromising performance.
Applications:
Hexagonal Boron Nitride finds its utility across diverse fields owing to its multifaceted properties:
- Solid Lubricant: Utilized as powders or additives in lubricating oils for enhanced lubrication.
- Mold Release Agent: Facilitates easy release in plastic injection molding and metal casting.
- Electronics Insulation: Acts as a substrate for semiconductors and microwave electronics due to its excellent electrical insulating properties.
- Composite Materials: Blended with ceramics, alloys, resins, plastics, and rubbers to confer self-lubricating characteristics, enhancing the performance of composite materials.
Whether reducing friction as a lubricant, ensuring smooth release in molding processes, or enhancing the properties of composite materials, Hexagonal Boron Nitride stands as a versatile solution across numerous industrial applications, delivering reliability, durability, and efficiency.
We offer Hexagonal Boron Nitride in various particle sizes and purities. If you require customization or have other needs, please feel free to contact us.