| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1476557 | Journal of the European Ceramic Society | 2011 | 6 Pages |
Abstract
Grain boundary sliding during high temperature deformation can lead to stress concentrations and an enhancement of diffusion in mobile boundaries. Experiments were conducted on a fine grained 3 mol% yttria stabilized tetragonal zirconia, under conditions associated with superplastic flow involving grain boundary sliding. Tracer diffusion studies under creep conditions and without load indicate that there is no enhancement in either the lattice or grain boundary diffusivities. The experimental creep data are consistent with an interface controlled diffusion creep mechanism.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Santonu Ghosh, Sathya Swaroop, Peter Fielitz, Guenter Borchardt, Atul H. Chokshi,