Applied to thermal insulation materials
Hexagonal Boron Nitride (h-BN) Powder, ≥99.5% Purity, Particle size (D50) 4.5um
Product Number: BN-B
CAS Number: 10043-11-5
Formula: BN
Crystal Structure: Hexagonal
Particle Size (D50): 4.5 um
Color: White
Purity: ≥99.5%
BET:11.5 m2/g
Technical Properties
| Grade Typical Value |
BN-A | BN-B | BN-C | BN-D | BN-E | BN-ES |
| BN(%) | >99.5 | >99.5 | >99.5 | >99.5 | >99.5 | >99.5 |
| B2O3(%) | <0.2 | <0.2 | <0.2 | <0.2 | <0.2 | <0.2 |
| O(%) | <0.3 | <0.3 | <0.3 | <0.3 | <0.3 | <0.3 |
| C(%) | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 |
| Fe(ppm) | <10 | <10 | <10 | <10 | <10 | <10 |
| Cr(ppm) | <10 | <10 | <10 | <10 | <10 | <10 |
| Ni(ppm) | <10 | <10 | <10 | <10 | <10 | <10 |
| Cu(ppm) | <10 | <10 | <10 | <10 | <10 | <10 |
| Mg(ppm) | <10 | <10 | <10 | <10 | <10 | <10 |
| H2O remaining (％) | <0.2 | <0.2 | <0.2 | <0.2 | <0.2 | <0.2 |
| Particle size (D50) （μm） | 1.7 | 4.5 | 9.5 | 16 | 30 | 38 |
| BET (m2/g) | 30.3 | 11.5 | 9.2 | 3.0 | 2.0 | 1.5 |
Why is it said that boron nitride powder can be used in insulation materials?
Boron nitride (BN) powder can be applied in insulation materials for several reasons:
Low thermal conductivity: Boron nitride exhibits extremely low thermal conductivity. Its thermal conductivity is approximately 1/7th that of steel and 1/2nd that of silicon carbide. This property effectively inhibits heat conduction, making it a good insulation material.
Excellent chemical stability: Boron nitride demonstrates good chemical stability at high temperatures, resisting oxidation, corrosion, and other forms of degradation. This allows it to maintain insulation performance over extended periods in high-temperature environments.
Outstanding high-temperature performance: Boron nitride possesses excellent high-temperature performance, maintaining structural and chemical stability even at elevated temperatures. Thus, it is suitable for insulation requirements in high-temperature environments, such as thermal protection in aerospace applications.
Abrasion and corrosion resistance: Boron nitride exhibits good resistance to abrasion and corrosion, resulting in longer service life and sustained insulation effectiveness in complex environments.
Lightweight: Compared to some traditional insulation materials, boron nitride is relatively lightweight, reducing structural burden and facilitating its application.
Product Applications
Thermal fillers enable next-gen thermal management for electric vehicles.
Thermal management for electric vehicles.
Boron nitride for thermal management.
High-performance lightweight ceramics for critical thermal management in electronic devices.
