Migration and solid solution of stabilizer MgO in PSZ ceramic

摘要

The partially stabilized zirconia ceramic samples were fabricated using MgO stabilizer. The solid solution and migration process of stabilizers in zirconia grains under working temperature was studied by XRD, SEM and EDS. Results show that after 1710 °C×2 h sintering, MgO stabilizer in the sample didn't solid-solute completely, part of MgO enriched in the position of the impurity SiO_2 to generating forsterite, stability of zirconia grains didn't reach highest; With increasing heat preservation time under working temperature 1540 °C, solid solution of stabilizer and zirconia stabilization completed in 8 h.