XRD
EDS
Atomic %
Weight %
Element
50.73
34.84
Nitrogen
49.27
65.16
Aluminum
SWS Series aluminum nitride powders (AlN) are polycrystalline, high-purity particles available in D50 sizes from 2 μm to 80 μm, with a silicone-compatible surface coating and an advanced anti-hydrolysis treatment applied.
The coating improves particle bonding in silicone polymer matrices, while the anti-hydrolysis treatment provides excellent hydrolysis resistance, helping maintain thermal performance and powder stability in wet and humid conditions. Hydrolysis resistance is tested with the powder immersed in water at 85°C/85%RH for more than 500 hours.
Key applications
SWS Series can be compounded with silicone polymers to develop highly thermally conductive products, including thermal grease, gels, films, tapes, pads, and coatings.
Features
Narrow particle size distribution
Silicone-functional surface coating
Advanced hydrolysis resistance (>500 hours)
Available in multiple particle sizes (2–80 μm)
SWS Series
Polycrystalline
Particle Type
Irregular
Particle Shape
Yes
Surface Coating
Yes, advanced
Water Resistance
>500 hours
Water Resistance Rating
Repose Angle
Bulk Density
Binder Content
Aluminum Nitride
Chemical Name
AlN
Formula
Powder
Form
24304-00-5
CAS Number
Gray
Color
≥98%
Purity
>2200°c
Melting Point
3.26 g/cm3
Density
Impurities
Ca
<100 ppm
Pb
<10 ppm
Fe
<300 ppm
Si
<1500 ppm
C
<0.1 wt%
O
<1.5 wt%
Part Number
D50
SEM Photos
Particle Size Distribution
AlN020SWS
2 μm
AlN050SWS
5 μm
AlN100SWS
10 μm
AlN200SWS
20 μm
AlN300SWS
30 μm
AlN500SWS
50 μm
AlN800SWS
80 μm
Available Sizes