Blended Oxides

The ZTA (zirconia toughened alumina) material group, in particular, is associated with blended oxide ceramic. Alumina and zirconia are blended in the most varying of ratios. Quite a common ratio is 20% ZrO2 and 80% Al2 O3.

 

The material properties vary in line with the blending ratios. Basically this material variant unifies the hardness of Al2O3 and the toughness of ZrO2 :

 

  • good tribotechnological properties
  • very high strength coupled with great hardness
  • very good corrosion-proofing
  • high fracture toughness
  • high wear resistance
  • good surface condition

 

In operations, blended oxides prove their worth in mechanically highly stressed components, such as sliding bearings and pump shafts.


Blended Oxides