For ceramic applications UprYZe from Zirpro have the best positioning in terms of toughness, strength and impact resistance, making them the material of choice for the most demanding applications.
Properties include:
- Outstanding toughness (Kic = 15 MPa.m1/2)
- Exceptional impact resistance (+50% vs. 3mol% Y-TZP).
Performance of UprYZe is achieved with a standard sintering cycle (1450°C-2hrs in air), no special sintering is required (for example: HIP).

Toughness (MPa1/2) |
Hardness (HV0.5) |
Bending Strength (MPa) | |||
Mg doped zirconia | 9 | 11.5 | 650 | ||
3mol% Y doped Zirconia* |
5.5 | 12.5 | >1000 | ||
UprYZe-ShockTM |
15 | 13 | >1000 |
*Ceramic obtained with ZirPro powders

Featuring a tailored microstructure and composition, UprYZe-Shock enables the easy manufacturing of ceramic parts:
- Three times tougher than Y-TZP whistle keeping a similar bending strength,
- 50% more impact resistant than 3mol% yttria-stabilized zirconia parts,
- Maintaining high mechanical performance even if damaged,
- Easy to sinter (1450°C – 2hrs in air).
UprYZe-Shock is suitable for applications requiring high toughness and shock resistance such as welding pins, knives, cutting tools and ceramic parts in consumer goods…
ZirPro offers UprYZe-Shock either as a dry powder (UprYZe-Shock) for injection molding or casting or as ready-to-press granules for uniaxial pressing or CIP (UprYZe-Shock G).
UprYZe Shock | UprYZe Shock G | |
Dry Powder | Ready-To-Press | |
AI2O3 (wt%) | 15 | |
Y2O3 + CeO2 | 6 | |
SSA (m²/g) | 8.5 | |
D50 (µm) | 0.2 | 60 |
Ceramic Density | >5.63 | |
Bending Strength (MPa) | 1000 | |
Fracture Toughness (MPa.m1/2) | 15 | |
Hardness (HV0.5) | 1300 | |
Sintering Recommendation | 1450°C - 2hrs |

Based on a patented engineered composition, UprYZe-Black provides a unique combination of aesthetic and mechanical performance:
- Deep black color for aesthetic ceramics,
- Improved impact resistance similar to UprYZe-Shock: +50% vs. regular yttria doped zirconia,
- Ceramic with high mechanical performance (Toughness of 15MPa.M1/2 , Bending strength of 1000MPa).
UprYZe-Black is proposed either as a dry powder (UprYZe-Black) for injection molding or casting or as ready-to-press granules (UprYZe-Black-G) for uniaxial pressing or CIP.
UprYZe Black | UprYZe Black-G | |
Dry Powder | Ready-To-Press | |
Y2O3 (wt%) | 3.3 | |
Pigment (wt%) | 5.0 | |
AI2O3 (wt%) | 1.0 | |
SSA (m²/g) | 9.5 | |
D50 (µm) | 0.2 | 60 |
Ceramic Density | >5.99 | |
Bending Strength (MPa) | 1000 | |
Fracture Toughness (MPa.m1/2) | 15 | |
Hardness (HV0.5) | 1250 | |
Sintering Recommendation | 1400°C - 2hrs |