|
Tech-data |
Test conditions |
Unit |
95% AL2O3 |
99.5% AL2O3 |
|
Density |
|
g/cm 3 |
> 3.60 |
3.7 |
|
Bending Strength |
|
N/m 3 |
2.24 × 108 |
> 2.74 × 108 |
|
Linear Expansibility |
20~1000C |
a × 10 ¯ 6 |
- |
- |
|
20~5000C |
a × 10 ¯ 6 |
6.2~7.5 |
6.2~7.5 |
|
|
20~8000C |
a × 10 ¯ 6 |
6.5~8.0 |
6.5~8.0 |
|
|
Specific Inductive Capacity |
1MHz |
|
9~10 |
9~10.5 |
|
10GMHz |
|
9~10 |
- |
|
|
Dielectric Loss |
1MHz |
a × 10 ¯ 6 |
≤ 4 |
≤ 1.5 |
|
Tangent |
10GMHz |
a × 10 ¯ 6 |
≤ 10 |
- |
|
Volume Resistance |
1000C |
Ω . cm |
> 1013 |
> 1014 |
|
3000C |
Ω . cm |
> 1016 |
> 1012 |
|
|
5000C |
Ω . cm |
108 |
- |
|
|
Breakdown Strength |
|
KV/mm |
15 |
- |
|
Thermal Conductivity |
200C |
W/m. K |
25.2 |
29.2 |