Aluminum Nitride AlN Ceramic Microsphere

Aluminum Nitride Microsphere Properties

Other Names Aluminium nitride
CAS No. 24304-00-5
Compound Formula AlN
Molecular Weight 40.9882
Appearance White to pale yellow powder
Melting Point 2200 °C
Boiling Point 2517 °C (dec.)
Density 2.9 to 3.3 g/cm3
Solubility in H2O N/A
Electrical Resistivity 10 to 12 10x Ω-m
Poisson's Ratio 0.21 to 0.31
Specific Heat 780 J/kg-K
Thermal Conductivity 80 to 200 W/m-K
Thermal Expansion 4.2 to 5.4 µm/m-K
Young's Modulus 330 GPa
Exact Mass 40.9846
Monoisotopic Mass 40.9846

Aluminum Nitride Microsphere Health & Safety Information

Remarks Danger
Hazard Statements H314-H335
Hazard Codes Xi
Risk Codes 36/37/38
Safety Statements 26-37/39
RTECS Number N/A
Transport Information N/A
WGK Germany 3


Product Details

About Aluminum Nitride AlN Ceramic Microsphere:
AlN Ceramic Microsphere has high thermal conductivity (340W) and heat transfer performance after secondary laser melting alloying. Very low oxygen content (lt;0.1%), heat preservation and thermal conductivity effect is very obvious. Used in polymer resin, viscosity is not obvious, is currently a better high thermal conductivity insulation filler.
Ceramic spherical aluminum nitride was first synthesized in 1877. In the 1980s, AlN Ceramic Microsphere, as a Ceramic insulator, has been widely used in the field of microelectronics due to its high heat transferability. Unlike beryllium oxide, AlN Ceramic Microsphere is non-toxic. Ceramic spherical aluminum nitride is treated with metal and can be used as a substitute for alumina and beryllium oxide in a large number of electronic instruments. Spherical ceramic AlN can be prepared by reducing aluminum oxide and carbon or directly nitriding metal aluminum.AlN Ceramic Microsphere is a kind of material connected by covalent bonds. It has a hexagonal crystal structure with the same shape as zinc sulfide and wurtzite. Industrial-grade materials can only be made by hot pressing and welding. This material is very stable in an inert high-temperature environment. TRUNNANO is a trusted global Aluminum Nitride AlN Ceramic Microsphere supplier. Feel free to send an inquiry about the latest price of AlN Ceramic Microsphere at any time.

Product Performance of Aluminum Nitride AlN Ceramic Microsphere:
AlN has high thermal conductivity and electrical insulation , add AlN powder into the resin or plastic can significantly improve the thermal conductivity.

Features of Aluminum Nitride AlN Ceramic Microsphere:
Near spherical
High solid loading
Well flow ability
Sharp particle size distribution
High thermal conductivity
High electrical insulatio

Specification of Aluminum Nitride AlN Ceramic Microsphere:

Average Particle Size (um)1.0-1.25-1020-4040-6070-90110-130
Particle ShapeNear sphericalNear sphericalSphericalSphericalSphericalSpherical
True Density (g/cm3)3.263.26>3.30>3.30>3.30>3.30
Thermal conductivity (W/m·K)>170>170>170>170>170>170
Bulk Density (g/cm3)0.3-0.51.3-1.51.4-1.61.6-1.81.7-1.91.7-1.9
Tap Density (g/cm3)0.7-0.91.6-1.81.8-2.01.8-2.01.9-2.11.9-2.1

Chemical Composition of Aluminum Nitride AlN Ceramic Microsphere:



How is Aluminum Nitride AlN Ceramic Microsphere Produced? 
Spherical aluminum nitride ceramics were prepared by laser flame melting. The product has the advantages of high purity, uniform particle size distribution, clean surface, high sphericity, no residual impurities, easy dispersion and good compatibility with organisms.
Applications of Aluminum Nitride AlN Ceramic Microsphere:
1. After the secondary laser melting and spherical alloying, the obtained AlN Ceramic Microsphere has uniform size and good fluidity, which improves the thermal conductivity and insulation of the material;
2. After melting, the surface of AlN Ceramic Microsphere is treated with resistance to hydrolysis and oxidation, and the thermal conductivity exists for a long time after addition.
3. Ceramic spherical aluminum nitride has good injection molding performance; Used in composite materials, it has a good match with semiconductor silicon and good interface compatibility, which can improve the mechanical properties and thermal conductivity of composite materials;
4. Application in high thermal conductivity plastics: Modified AlN Ceramic Microsphere can greatly improve the thermal conductivity of plastics. At present, it is mainly used in PVC plastics, polyurethane plastics, PA plastics, PP plastics, functional plastics, etc.

Storage Condition of Aluminum Nitride AlN Ceramic Microsphere:
The damp reunion will affect aluminum nitride (AlN) ceramic microsphere dispersion performance and using effects, therefore, aluminum nitride (AlN) ceramic microsphere should be sealed in vacuum packing and stored in a cool and dry room, the aluminum nitride (AlN) ceramic microsphere can not be exposure to air. In addition, the aluminum nitride (AlN) ceramic microsphere should be avoided under stress.

Packing & Shipping of Aluminum Nitride AlN Ceramic Microsphere:
We have many different kinds of packing which depend on the aluminum nitride (AlN) ceramic microsphere quantity.
Aluminum nitride (AlN) ceramic microsphere packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Aluminum nitride (AlN) ceramic microsphere shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.