Influence of the yttrium segregation at grain boundaries in the superplasticity of yttria tetragonal zirconia polycrystals

This work presents a general view on the high temperature plastic deformation of yttria tetragonal zirconia polycrystals (YTZP), in the frame of the new modelling effort made by the authors to understand the main features of this system. A critical analysis is made, as well as a future perspective of the possible development of research in this material.