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Alumina is a widely used technical ceramic owing to its exceptional properties such as high hardness, strength, and excellent resistance to wear, corrosion, and high temperatures. And yet there are differences in purity levels and manufacturing methods. What makes KYOCERA Fineceramics Europe's alumina different? They have a very high purity of up to 99.7 %. By largely dispensing with the usual sintering aids, the corrosion resistance of the grain boundary chamfer could be developed to the best level. Material development perfected over decades enables the production of large components that are unique in these dimensions for high-performance ceramics. Due to the fine microstructure, brilliant surface qualities can be achieved by fine machining. The ceramic material has established itself as extremely versatile in numerous application areas, such as extruder screws, nozzles, and slide rings in mechanical and plant engineering, but also in high-temperature technology. The broad spectrum of excellent properties with a convincing price-performance ratio creates the best conditions for customised, engineering ceramic components, e.g., for high-performance mills or the aerospace industry - to name just a few application areas.

The most important material properties of alumina (Al2O3) in brief:

  • High strength and dimensional stability
  • High hardness
  • Good temperature resistance
  • High wear resistance
  • High corrosion resistance up to high-temperature ranges
  • High electrical resistance
  • Outstanding surface qualities

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Our Alumina products