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Aluminum Nitride (AlN) – Custom Machined Parts
Aluminum Nitride is stable at very high temperatures in inert atmospheres. Also, it is the only technical ceramic material that offers high thermal conductivity and good electrical insulation.
Aluminum Nitride Properties
| Property(Unit) | Vickers Hardness HV（GPa） |
Fracture Toughness （MPaｍ1/2) |
Max Use Temperatur（℃） | Coefficient of Thermal Expansion（×10-⁶/℃） | Thermal Conductivity (W/(m・K)) |
Thermal Shock Resistance（℃） | Dielectric Strength（kv/mm） | Chemical Resistance |
|---|---|---|---|---|---|---|---|---|
| Chemical Formula & Purity | ||||||||
| AlN | 13 | 3 | 1,500 (in a nitrogen atmosphere) |
2.4 | 160(20℃) | 400 | >15 | Good (It corrodes in alkaline conditions and water.) |
Aluminum Nitride – Key Properties & Popular Applicatio
| Key Properties | Applications | |
|---|---|---|
|
■High thermal stability ■Low thermal expansion ■High thermal conductivity ■High thermal shock resistance |
High thermal conductivity makes AlN ideal for applications where fast and uniform thermal response is required. It is often used for electronics applications due to its excellent heat dissipation properties.Also, the high thermal conductivity coupled with low thermal expansion make AlN an excellent thermal shock resistant material which withstands rapid heating and cooling. |
■Heat sinks & heat spreaders ■Semiconductor heaters ■Substrate material for high power, electronic devices ■Heat transfer components used at high temperatures |
| Good Chemical Resistance |
AlN is highly resistant to corrosion especially to halogen gas plasma. However, it reacts with water and alkaline water to produce ammonia gas. |
■Components exposed to semiconductor process chemicals and gases at high temperatures ■Plasma-exposed components |
Available Sizes and Machining Capability
| Availability | Sizes(mm) | Machining Capability | Sizes(mm) |
|---|---|---|---|
| Plate | Φ350×30 | Hole diameter | Φ0.03 or more |
| Rod | Φ20×200 | Hole depth | 300 or less |
| Groove width | 0.05 or more | Max. hole number | 3,000 (approx.) |
| Max. step height | 30 | Thread size | M2 or more |
Aluminum Nitride Custom Machined Parts
Ceramics List
-
- Alumina（Al₂O₃）
-
Excellent electrical insulation properties , High temperature resistance , Plasma resistance , High hardness , Wear resistance
-
- Aluminum nitride（AlN）
-
High thermal conductivity , High temperature resistance , Low thermal expansion , Excellent electrical insulation properties , Plasma resistant , Corrosion resistant
-
- Zirconia（ZrO2）
-
High fracture toughness , Low thermal conductivity , Wear resistant
-
- Silicon carbide（SiC）
-
High hardness , High thermal conductivity , High mechanical strength , Corrosion resistant
-
- Silicon Nitride (Si3N4)
-
High fracture toughness , Low thermal expansion , Wear resistant , Good thermal shock resistance
-
- Machinable Ceramics
-
Excellent electrical insulation properties , High machinability , High temperature resistance
Top Seiko Co., Ltd.
〒526-0105
1197-4, Hosoe-cho, Nagahama City,
Shiga Pref.,526-0105 Japan
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