2 mol % Yttria-stabilised Zirconia (2YSZ)

Our 2 mol % Yttria-stabilised Zirconia (2YSZ) offers outstanding fracture toughness of up to 14 MPa.m0.5, which is significantly higher than the current structural ceramic powder of choice, 3YSZ, and provides a unique balance with flexural strength.
 
A lower yttria content would normally offer less stabilisation of the zirconia matrix. However, the nanostructure imparted to our 2YSZ powders from our highly energetic manufacturing process - Emulsion Detonation Synthesis (EDS) - contributes to stabilising the zirconia and ensuring components produced from Innovnano’s 2YSZ meet the demands of advanced ceramic applications.


2YSZ Fracture toughness vs Flexural strength

Our 2YSZ is available as a binderless or ready-to-press powder, providing an excellent alternative to conventional micron-sized 3YSZ. It can also be used as the zirconia phase in both alumina-toughened zirconia (ATZ) and zirconia toughened alumina (ZTA).


Properties and benefits

Our 2YSZ powder is manufactured using our proprietary EDS technology, which ensures the powder is produced with the highest quality and consistency and enhanced chemical and physical properties.
 
The result? Ceramic components that exhibit exceptional wear-resistance, high component and flexural strength, and excellent durability - for complete confidence in the performance and life-time of your structural ceramics.


 Performance

 Benchmark 3YSZ

 Innovnano 2YSZ

 Fracture Toughness (MPa.m0.5

 5

 14

 Flexural Strength (MPa)

 1200

 1200

 Hardness (HV10)

 1250

 1250

Cyclic fatigue resistance*40-50% of static resistance87% of static resistance
Hydrothermal resistance**85-90% of original resistance85-90% of original resistance

* ISO 22214:2006, ** ISO 13485:2016


Applications

 
2YSZ from Innovnano exhibits the high component strength and durability required for the manufacture of structural ceramics. Its outstanding fracture toughness sets it apart from other structural ceramic materials, providing excellent tribological performance, not only for many physically demanding applications but also for cases that require cyclic load resistance.

Innovnano 2YSZ exhibits outstanding performance in cyclic fatigue tests due to its ability to absorb energy. A characteristic that is only possible with our high values of fracture toughness that approach the typical range of metals and alloys. The result is an increased lifetime for ceramic components, for example, those used in rotary machinery.
2YSZ offers a high fracture toughness alternative to conventional micron-sized 3YSZ engineered ceramic applications. It can be used as the zirconia phase in both ZTA and ATZ.
​​2YSZ ageing data​Structural ceramics are widely used across a broad range of industries, when a component or coating is required with exceptional wear- and friction-resistance. Some specific uses include:
  • Pump linings
  • Valve components
  • Nozzles
  • Tank linings and ceramic sleeves
  • Cutting tools
  • Grinding materials
  • Welding pins
  • Dies and tooling
  • Roller bearings
  • Extruders

If you have an application in mind, please get in touch.