Surface uplift and wear implications of zirconia toughened ceramics (Q1910788)

The surface uplift due to transformation of a circular inclusion in a half-plane and of a spherical inclusion in a half-space is analyzed. The general uniform transformation strain has significant effects on the surface topography and has ramifications for the rolling/sliding wear characteristics of the surface. The two-dimensional approximation overestimates the surface uplift by up to three times compared with the more realistic three-dimensional model. The results indicate that the occurrence of transformation strains, and in particular shear transformation strain, in the near surface area will affect the surface topography considerably.