Partially Stabilized Zirconia (PSZ) components have unique properties such as extremely high fracture toughness, high thermal expansion, high flexural strength  and low thermal expansion. Usually, Zirconia is blended with either Yttrium oxide (Y2O3), Magnesium oxide (MgO) or Calcium oxide (CaO) which stabilizing agents to make sure it can maintain stable crystal phase in order to facilitate transformation and toughening.

3Y-PSZ, blends approximately 3-5 % yttria is called tetragonal zirconia polycrystal. These grades powder have the finest particle size and exhibit the highest toughness at room temperature, because their crystal structure are nearly 100% tetragonal phase. The amount of tetragonal can be controlled by additions of the blends to balance toughness and strength.


Stabilized zirconium oxide is used in all kinds of ceramic, electric ceramic, biological ceramic(Dental), optical fiber connectors, advance mechanical parts, grinding media, oxygen sensor, solid oxide fuel cell etc.