Alumina ceramics

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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