Aluminum Nitride
Aluminum Nitride powders (AlN, CAS 24304-00-5) supplied wholesale by Zyntex. Thermally conductive, electrically insulating ceramic for substrates, thermal fillers, LED and power modules, and semiconductor equipment. CoA and SDS.
Description
Aluminum Nitride Product Overview
Aluminum nitride (AlN) is a white to light grey powder. Sintered AlN reaches a thermal conductivity of about 170–230 W/m·K, several times higher than alumina, while it remains an excellent electrical insulator. Its thermal expansion also matches silicon closely.
Electronics producers sinter AlN powder into substrates and heat spreaders for power modules, LEDs and RF devices, typically with sintering aids such as Yttrium (III) oxide. Similarly, polymer producers use it as a thermally conductive filler in thermal interface materials and potting compounds, often together with Boron nitride. Semiconductor equipment producers also use AlN parts in wafer heaters and electrostatic chucks.
AlN reacts slowly with moisture and releases ammonia, so powders require dry storage; surface-treated, hydrolysis-resistant grades are also available. Related ceramics in our range also include Silicon nitride and Boron carbide.
Key Applications of Aluminum Nitride
Typical uses include, for example:
🔌 Substrates
Raw material for thermally conductive substrates.
🌡️ Thermal Fillers
Filler for interface materials as well as potting compounds.
💡 LED and Power Modules
Heat spreaders for high-power devices.
🏭 Semiconductor Equipment
Parts for wafer heaters as well as chucks.
Aluminum Nitride Technical Specifications
| Parameter | Standard Value |
|---|---|
| Product Name | Aluminum Nitride (AlN) |
| CAS Number | 24304-00-5 |
| Molecular Formula / Weight | AlN / 40.99 g/mol |
| Thermal Conductivity | 180 – 260 W/m·K (sintered) |
| Dielectric Strength | 15 – 20 kV/mm |
| Documents | CoA as well as SDS with every lot |
⚠️ Safety & Handling: May cause eye and respiratory irritation; reacts slowly with water, releasing ammonia. Avoid dust formation and also wear dust protection and eye protection. Store in tightly closed containers in a dry place, because moisture degrades the powder. Always consult the Safety Data Sheet (SDS), because it contains the full classification and handling instructions.
Frequently Asked Questions
Why is aluminum nitride used instead of alumina?
Because its thermal conductivity is several times higher while it remains an electrical insulator, it cools power electronics much more effectively.
Is aluminum nitride sensitive to moisture?
Yes. It reacts slowly with water, so it requires dry storage; hydrolysis-resistant grades are also available.
How can I get a price and documents?
Prices depend on quantity, packaging and destination, so please contact us with your required volume. We then send a quotation together with the CoA and SDS.
