Aluminum Nitride AlN Powder (nano particles and microns)
Aluminum Nitride (AlN) Powder is a high-performance ceramic material known for its exceptional thermal conductivity, electrical insulation, and mechanical strength. Ideal for thermal management applications, AlN powder is widely used in electronics, semiconductors, and high-temperature environments.
Princeton Powder is a leading supplier of Aluminum Nitride ceramic powder. Aluminum powders including AlSi10Mg Spherical Powder, Aluminum 7075 Spherical Powder, and Aluminum 6061 Spherical Powder are for sale in bulk.
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 high-performance ceramic powder known for its exceptional thermal conductivity (up to 200 W/m·K), electrical insulation, and low thermal expansion coefficient. These unique properties make AlN ideal for thermal management applications, particularly in electronics, semiconductors, LEDs, and power devices.
Princeton Powder offers high-purity AlN powder (≥99.9%) in various particle sizes, including submicron and micron grades, suitable for sintering, ceramic substrates, thermal interface materials, and composite fillers. Aluminum Nitride (AlN) powder is for sale at a competitive price.
AlN ceramic substrate powder 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 |
Aluminum Nitride Powder Applications
Electronic Substrates: High-performance insulators for microelectronic packaging
Heat Sinks and Spreaders: Thermal management components for LEDs and power ICs
Thermal Interface Materials (TIMs): Fillers in polymer-based thermal pastes and pads
Sintered Ceramics: Dense AlN ceramics for structural and insulation applications
Composite Materials: Reinforcement in polymer or metal matrix composites
Aluminum Nitride AlN powder Reference
Synthesis of Cubic Aluminum Nitride Coating from Al2O3 Powder in Reactive Plasma Spray Process
- This study investigated the feasibility of reactive plasma spraying of Al2O3 powder in N2/H2 plasma upon fabrication of AlN coating. It was possible to fabricate a cubic-AlN (c-AlN)/Al2O3 composite coating and the fabricated coating consists of c-AlN, α-Al2O3, Al5O6N and γ-Al2O3. Furthermore, the AlN content was improved with increasing the flight time (spray distance), due to increasing the reaction time between the Al2O3 particles and the surrounding N2/H2 plasma.
Aluminum Nitride AlN powder FAQ
Is AlN electrically conductive?
No. Aluminum Nitride is electrically insulating, with very high resistivity. This makes it suitable for use in electronics where thermal dissipation is needed without electrical conduction.
What particle sizes are available?
AlN powder is available in:
Nano AlN powder (<100 nm)
Submicron AlN powder (0.5–1 μm)
Micron AlN powder (1–5 μm)
Custom particle sizes and distributions are also available upon request.
What is the difference between AlN and BN or Si₃N₄?
AlN: Highest thermal conductivity; electrically insulating
BN (Boron Nitride) Powder: Soft, machinable, moderate thermal conductivity
Si₃N₄ (Silicon Nitride): Stronger and tougher, good thermal shock resistance