Synthetic Cordierite
Final Advanced Materials provides a range of pressed technical ceramic. Pressed technical ceramics are mainly used to produce parts in big quantities for application where there is no need for tight dimensional tolerances, chemical purity or high mechanical stress for example. This type of ceramic is more economical than sintered ceramics like alumina or zirconia. We can mould ceramic parts according to your needs for applications over 1000°C.
Our range of technical pressed ceramics
-
Synthetic steatite, porous and non porous
-
Synthetic cordierite, porous and non porous
Applications of pressed ceramics
- Resistive heater
- Cartridge heater
- Accumulator
- Electric heating
Pressed ceramics comparative
|
Materials |
Mullite |
Steatite |
Porous Steatite |
Cordierite |
Porous Cordierite |
|
References (DIN EN60672) |
C620 |
C221 |
C230 |
C410 |
C511 |
|
Purity |
3Al2O3 2SiO2 |
MgO SiO2 |
MgO SiO2 |
MgO SiO2 Al |
MgO SiO2 Al |
|
Characteristics |
|||||
|
Density g/cm3 |
2.8 |
2.7 |
> 1.8 |
> 2.1 |
> 1.9 |
|
Open porosity % |
0.3 |
< 0.5 |
< 35 |
< 0.5 |
< 20 |
|
Colour |
White |
Yellow |
Yellow |
Yellow |
Yellow |
|
Mechanical characteristics at 20 °C |
|||||
|
Vickers Hardness test HV10 N/mm² |
750 |
780 |
- |
- |
- |
|
Compressive Strength N/mm² |
551 |
>900 |
> 100 |
> 300 |
> 200 |
|
Flexual Strength N/mm² |
180 |
>140 |
> 30 |
> 60 |
> 25 |
|
Elastic modulus GPa |
150 |
110 |
- |
- |
- |
|
Thermal characteristics |
|||||
|
Peak Temperature °C |
1700 |
1000 |
1000 |
1000 |
1200 |
|
Specific Heat 20°C J/kgK |
- |
800-900 |
800-900 |
800-1200 |
750-850 |
|
Thermal Conductivity 100°C W/mK |
2.2 |
2-3 |
1.5 - 2 |
1.5 - 2.5 |
1.3 - 1.8 |
|
Thermal Expansion 20-1000°C 10-6 /K-1 |
5.3 |
8-9 |
- |
2 - 4.5 |
4-6 |
|
Electrical characteristics |
|||||
|
Specific Revistivity at 20°C Ohm.cm |
1014 |
>1013 |
- |
>1012 |
- |
|
Specific Resistivity at 600°C Ohm.cm |
104 |
> 107 |
107 |
> 105 |
> 105 |
|
Dielectric Strength kV/mm |
10 |
15 |
- |
> 10 |
- |