Materials: Zirconia
Alumina (Al2O3) ceramics is a hard, chemically resistant material
and has the ability to withstand very high temperatures in
aggressive environments. We offers Alumina with various purity
levels, including 99.8%,99.5% and 99.0%. The level of purity, grain
size, and density required is dependent on the rigors of the
application and the component configuration.
Standard Foyo Alumina products include various tubes, rods,
crucibles, boats, trays, dishes, and discs that are available for
purchase online. We also have significant capabilities for
producing custom engineered Alumina products. Please contact us and
our experienced engineers can assist you in the material selection
and design of your advanced ceramic components.
Copmosition
Zirconia | ZrO2/HfO2 | 89.0% |
Yttria | Y2O3 | 10.5% |
Silica | SiO2 | 0.15% |
Alumina | Al2O3 | 0.20% |
Titania | TiO2 | 0.05% |
Calcia | CaO | 0.05% |
Iron Oxide | Fe2O3 | 0.04% |
Magnesia | MgO | 0.001% |
Sodium Oxide | Na2O | 0.01% |
Potassium Oxide | K2O | 0.001% |
Thermal Properties
ConductivityOpen Porosity | Expansion Coefficient | Max Use Temperature (no Load)
|
20800℃ | 20~1000℃ |
2 W/m°K | 2 W/m°K | 11.3x10^-6/℃ | 2200℃ |
14 BTU.in/ft2.hr°F | 14 BTU.in/ft2.hr°F | 6.3x10^-6/°F | 4000°F |