Ghosh, Santonu ; Chokshi, Atul H. ; Lee, Pilhwa ; Raj, Rishi (2009) A huge effect of weak DC electrical fields on grain growth in zirconia Journal of the American Ceramic Society, 92 (8). pp. 1856-1859. ISSN 0002-7820
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Official URL: http://onlinelibrary.wiley.com/doi/10.1111/j.1551-...
Related URL: http://dx.doi.org/10.1111/j.1551-2916.2009.03102.x
Abstract
We show that the application of a modest dc electrical field, about 4 V/cm, can significantly reduce grain growth in yttria-stabilized polycrystalline zirconia. These measurements were made by annealing samples, for 10 h at 1300°C, with and without an electrical field. The finding adds a new dimension to the role of applied electrical fields in sintering and superplasticity, phenomena that are critical to the net-shape processing of ceramics. Grain-growth retardation will considerably enhance the rates of sintering and superplasticity, leading to significant energy efficiencies in the processing of ceramics.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to John Wiley and Sons. |
| ID Code: | 84181 |
| Deposited On: | 24 Feb 2012 11:34 |
| Last Modified: | 24 Feb 2012 11:34 |
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