Aluminum Nitride AlN Powder
Formula | AlN |
Synonyms | Aluminum Nitride, CAS 24304-00-5 |
Appearance | White gray Powder |
Particle Size | -325 Mesh, or customized |
Purity | 99.9%, 3N |
Density | 3.25 g/cm 3 |
Melting Point | 2400 °C |
Boiling Point | 2249 ℃ |
Description of Spherical Aluminum Nitride Powder
Aluminum Nitride (AlN) powder is a highly desirable material used in various industrial applications due to its excellent thermal, electrical, and mechanical properties.
Aluminum nitride powder is typically produced through carbothermal reduction and nitridation (CRN), which involves reducing aluminum oxide with carbon in a nitrogen-rich environment, allowing for large-scale production of high-purity AlN. Another common method is direct nitridation, where aluminum metal is reacted with nitrogen gas at high temperatures, providing a straightforward approach with precise control of the reaction conditions. This material is known for its high thermal conductivity, which makes it ideal for heat dissipation in electronic devices, preventing overheating and enhancing performance. Additionally, aluminum nitride has excellent electrical insulation properties, making it suitable for applications that require separation between electrical and thermal functions, thus ensuring safe operation in high-voltage environments.
Aluminum nitride powder’s unique combination of high thermal conductivity and electrical insulation makes it a critical material in the development of high-performance electronic and industrial components. Aluminum Nitride (AlN) powder is for sale at a competitive price.
Specifications
Products | Purity (%) | Particle D50 (μm) | O (wt%) | Fe (ppm) | Si (ppm) | C (ppm) |
AlN-1 | 99.9 | 1.39 | 0.75 | 30 | 10 | 255 |
AlN-2 | 99.9 | 1.07~1.17 | 0.78~0.6 | 10~14 | 39~48 | 130~270 |
Density | Thermal conductivity Coefficient | Thermal expansivity | Maximum usage temperature | Bending resistance | Specific volume resistance | Dielectric strength |
>3.1 g/cm3 | >120w/(m·k) | 4.4×10-6 K | 1800℃ | >300Mpa | 1014Ω·cm | 15kV/mm |
Applications
- Electronics and Semiconductors: Due to its excellent thermal management properties, AlN is used in electronic substrates, thermal interface materials, and heat sinks.
- Ceramics: AlN powder is used in advanced ceramic applications where high thermal conductivity and electrical insulation are required.
- LED Technology: AlN substrates are employed in LED manufacturing due to their thermal properties.
- High-Temperature Applications: Because of its stability at high temperatures, it is used in parts that must operate under severe thermal conditions.
- Composite Materials: As a filler material to enhance thermal conductivity in polymer composites.
Aluminum Nitride AlN powder Reference
Synthesis of submicron AlN powder using dynamic/thermochemical method
- Carbothermal reduction and nitridation (CRN) method, used for the synthesis of nitride-based ceramic powders, is an effective and economic technique that has been widely investigated. In this study, a CRN-based novel approach, denominated as dynamic/thermochemical method (DTM), has been used to synthesize submicron high-purity aluminum nitride (AlN) powders with equiaxed-sized particles.