Aluminum Oxide (Al2O3)

The Most Well-known Oxide Ceramic Material

Alumina or aluminum oxide (Al2O3) in its various levels of purity is used more often than any other advanced ceramic material. CeramTec offers a wide range of material types with different property profiles that can be adjusted via a targeted matrix design.

There are both coarse and fine-grained varieties. Examples of applications for aluminum oxide Al2O3 advanced ceramics are heavy-duty forming toolssubstrates and resistor cores in the electronics industry, tiles for wear protection and ballistics, thread guides in textile engineeringseal and regulator discs for water taps and valves, heat-sinks for lighting systems, protection tubes in thermal processes or catalyst carriers for the chemicals industry.

Properties of Alumina/Aluminum Oxide (Al2O3)

  • Very good electrical insulation (1x1014 to 1x1015 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

Products made from Aluminum Oxide (Al2O3)

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