Pressed ceramics
When customer needs ceramic parts complex in shape, ELCERAM offers technology of dry pressing using ceramic granulate.
Pressed parts can be ground, milled or machined in other ways.
|
Characteristic |
Values for Al2O3 content 94 – 98 % |
Values for Al2O3 content 99 – 99,95 % |
|
Flexural strength |
280 – 370 MPa |
300 – 550 MPa |
|
Fracture toughness |
3.0 – 5.0 MPa.m1/2 |
4.0 – 5.0 MPa.m1/2 |
|
Heat conductivity |
15 – 27 W /m.K |
18 – 37.1 W /m.K |
|
Coefficient of thermal expansion |
7.5 – 9.1 . 10-6/K |
8.2 – 9.0 . 10-6/K |
|
Max temperature of application |
1200 – 1800 °C |
1400 – 1800 °C |
|
Dielectric strength |
8.3 – 8.7 kV/mm |
8.7 – 19.7 kV/mm |
|
Dielectric loss (tan δ) |
1 . 10-4 – 5 . 10-4 MHz |
1 . 10-4 – 4 . 10-4 MHz |
|
Volume resistivity |
> 1014 Ω.cm |
> 1014 Ω.cm |