Swaroop, Sathya ; Chokshi, Atul H. (2004) Role of diffusion creep in a superplastic zirconia-alumina composite Materials Science Forum, 447-448 . pp. 323-328. ISSN 0255-5476
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Official URL: http://www.scientific.net/MSF.447-448.323
Related URL: http://dx.doi.org/10.4028/www.scientific.net/MSF.447-448.323
Abstract
The phenomenon of superplasticity has been demonstrated in several zirconia-alumina composites. However, the rate controlling mechanism has not yet been unambiguously identified, due to the limited data available on these materials in comparison with 3 mol% yttria stabilized tetragonal zirconia (3YTZ). The limited data on a zirconia-20 wt% alumina (3Y20A) composite suggest that the mechanical characteristics are similar to those of 3YTZ. The present experimental study on 3Y20A reveals the occurrence of diffusion creep. The experimental results are examined critically in terms of dislocation activity and diffusion creep, and their relevance to superplastic deformation.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Trans Tech Publications Inc. |
| Keywords: | Ceramic; Diffusion Creep; Dislocation Activity; Superplasticity; Tetragonal Zirconia |
| ID Code: | 84177 |
| Deposited On: | 24 Feb 2012 11:29 |
| Last Modified: | 24 Feb 2012 11:29 |
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