Aluminum nitride (AlN) has the characteristics of high strength, high volume resistivity, high insulation withstand voltage, thermal expansion coefficient, and good matching with silicon. It is not only used as a sintering aid or reinforcing phase for structural ceramics, especially in ceramic electronic substrates and In the field of packaging materials, its performance far exceeds that of alumina. Mainly used in machinery, metallurgy, chemistry, aerospace and other industries.
Aluminum Nitride Ceramic Components Index
|
AlN |
99.7% |
99% |
95% |
|
color |
White |
White |
White |
|
Density(g/cm³) |
3.9 |
3.8 |
3.7 |
|
Moh's hardness |
9 |
9 |
9 |
|
Bending strength(Mpa) |
375 |
375 |
375 |
|
Compressive strength(Mpa) |
2300 |
2100 |
1910 |
|
Thermal expansion coefficient(25-800℃)(10-6/℃) |
7.6 |
7.6 |
7.6 |
|
Dielectric strength(5mm)(kv/mm) |
10 |
10 |
10 |
|
Dielectric loss(25℃@MHz) |
0.0001 |
0.0006 |
0.0004 |
|
Dielectric constant(25℃@MHz) |
9.8 |
9.5 |
9.2 |
|
Volume resistivity(Ω.cm3) |
＞104 |
＞104 |
＞104 |
|
Long-term use temperature(℃) |
1700 |
1600 |
1400 |
|
Thermal conductivity(25℃)(W/m.k) |
35 |
34 |
20 |
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