Aluminium Nitride Powder
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DETAIL
Using self-made high-purity alumina powder as raw material, the product has high purity,
narrow particle size distribution, small primary grain size, regular morphology, and high thermal conductivity.
| Model | RB-N-3 | ||
| Appearance | Off-white powder | ||
| Element | Unit | Typical value | |
| Purity | AlN | % | 99.9-99.99 |
| Si | ppm | ≤5 | |
| Fe | ppm | ≤5 | |
| N | % | >31 | |
| O | % | <1.2 | |
| C | % | <0.06 | |
| BET | m2/g | 1.5~3.0 | |
| Moisture | % | ≤0.05 | |
| D50 | μm | 2~12 | |
| Remark | Can be customized as required. | ||
Aluminum nitride is a covalent bond compound with hexagonal wurtzite structure. Its theoretical density is 3.26g/cm3,
Mohs hardness is 7-8, and decomposition temperature is 2200-2250 ℃
1) High thermal conductivity, 5-10 times as high as that of alumina ceramics, equivalent to beryllium oxide;
2) Thermal expansion coefficient (4.3 * 10-6/° C) matches with semiconductor silicon material (3.5-4.0 * 10-6/° C);
3) Good mechanical properties, higher than beryllium oxide ceramics, close to alumina;
4) Excellent electrical performance, high insulation resistance and low dielectric loss;
5) Good weldability and repeated welding.

Applications:Thermal conductivity filling, fine ceramics, etc.
Aluminium nitride
chemical compound
ceramics
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