Yttria Tetragonal Zirconia Polycrystal
Y-TZP (Yttria Tetragonal Zirconia Polycrystal) is a Refractron specialty material for critical structural ceramic applications. The material is almost completely tetragonal in structure and is partially stabilized using about 3 mol% of Yttria (Y2O3).
Y-TZP has a material density of greater than 6.0 g/cc, a maximum operating temperature of 2000 C. This material has the highest flexural strength of the zirconia materials particularly when processed using a HIP (Hot Isostat Press). Values are 900 MPa and 1400 MPa (HIP'd). The hardness is 13-13.5 GPa, Fracture Toughness is 8.0 MPa-m1/2 and Thermal expansion (C.T.E.) is 10.2 x E6/ degree C). The excellent mechanical properties of this material are a result of a very small grain size, extremely low porosity, and a good deal of transformation toughening.
The Y-TZP material's extremely fine grain size makes it ideal for creating sharp blades that will, because of its excellent wear resistance, remain razor sharp.It is used in tooling and process applications for its strength, superior toughness, and excellent abrasion resistant.
In addition to Y-TZP components, other ceramic components produced by Refractron in our Mg-PSZ zirconia include:
- Valve components
- Precision ceramic balls
- Press tooling
- Wear plates
Other specialty products include a range of porous ceramic filters, diffusers and adsorbent filter/drier cores for refrigeration applications, dispersion parts, vacuum chucks, inkpads and gas probes.
Refractron Technologies Corp. is a leading manufacturer of technical ceramics. Products include both controlled porosity and densely structured ceramics designed to meet requirements specified by our customers for:
- Corrosion and wear resistance