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Advantage: | Long Service Life |
Color: | Black |
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Item |
|
Unit |
99 Al2O3 |
ZrO2 |
Physical Characteristics |
Bulk density |
g/cm3 |
3.9 |
6.05 |
Water absorption |
% |
0 |
0 |
|
Mechanical Characteristics |
Flexural strength |
Mpa |
360 |
1000 |
Hardness Vickers |
Gpa |
15.6 |
89 |
|
Elastic modulus |
Gpa |
370 |
200 |
|
Poisson's ratio |
- |
0.23 |
0.31 |
|
Thermal Characteristics |
Linear expansion coefficient |
(20-5000°C) 10-6/0°C |
8 |
10 |
Thermal conductivity |
w/(m·k) |
32 |
2.5 |
|
Specific Heat |
×10-3J/(kg·K) |
0.9 |
0.5 |
|
Electrical Characteristics |
Dielectric constant (1MHZ |
- |
9.9 |
N.A. |
Dielectric loss angle |
×10-4 |
1 |
N.A. |
|
Dielectric strength |
×10-6V/m |
15 |
N.A. |