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99.7% Alumina (Al₂O₃):
This grade of alumina boasts a higher purity, with only 0.3% impurities. This enhanced purity imparts superior properties, making it especially suitable for demanding applications. It is ideal for high-insulation electronic and electrical applications, including semiconductors, precision instruments, medical devices, and aerospace components.
Performance and properties of 99.7% Alumina, Al₂O₃
|
characteristics |
Value |
characteristics | Value |
|
Sintered Density |
3.92 g/cm³ |
permeability | 0.00% |
|
Water Absorption |
0.00% |
Weibull Modulus |
9-10 |
|
Hardness，Mohs |
9 |
Flexural Strength |
380 Mp |
|
Tensile Modulus |
390 gp |
Compressive Strength |
2500 Mp |
|
Poissons Ratio |
0.23 |
Fracture Toughness |
5.40 MPa-m½ |
|
Volume Resistivity |
1.00e+14 ohm-cm |
Dielectric Strength |
30.0-43 KV/mm |
|
Dielectric Constant |
10 |
Dielectric Loss Index |
0.0010 |
|
CTE, linear |
7.50 µm/m-°C |
CTE, linear |
8.50 µm/m-°C |
|
Specific Heat Capacity |
0.900 J/g-°C |
Thermal Conductivity |
10.0 - 43.3 W/m-K |
|
Max.Service Temp. Air |
1600 ℃ |
Max.Service Temp.Inert |
1600 ℃ |
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