| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1498441 | Scripta Materialia | 2014 | 4 Pages |
Abstract
The viscoelastic properties of gadolinium-doped ceria (CGO) powder compacts are characterized during sintering and cooling under reduced oxygen partial pressure and compared with conventional sintering in air. Under reducing conditions highly defective doped ceria shows peculiar viscoelastic properties due to fast mass diffusion phenomena activated at low temperatures by the reduction of Ce4+ to Ce3+. In particular, the viscous behavior is affected by dramatic microstructural changes, fast grain growth and densification, which are rapidly completed during the final stage of sintering.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Francesca Teocoli, Vincenzo Esposito,