Alumina ceramics
Alumina or aluminum oxide (Al2O3) in its various levels of purity is used more often than any other advanced ceramic material. Auras Refractories Ltd. offers a wide range of material types made by 99,5% and 99,8% Al2O3 with different profiles. This material has superb material characteristics such as high electrical insulation, high mechanical strength, high wear and chemical resistance.
Main characteristic of the Aluminum-Oxide (Al2O3)
- Very good electrical insulation (1×1014 to 1×1015 Ωcm)
- Moderate to extremely high mechanical strength (300 to 630 MPa)
- Very high compressive strength (2,000 to 4,000 MPa)
- High hardness (15 to 19 GPa)
- Moderate thermal conductivity (20 to 30 W/mK)
- High corrosion and wear resistance
- Good gliding properties
- Low density (3.75 to 3.95 g/cm3)
- Operating temperature without mechanical load 1,000 to 1,500°C.
- Bioinert and food compatible
These products are used for industries in
- automotive industry
- medical and precision equipments
- chemical and petrochemical industry
- paper industry
- chemistry