Journal
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
Volume 94, Issue 2, Pages 391-395Publisher
WILEY
DOI: 10.1111/j.1551-2916.2010.04088.x
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Funding
- Basic Energy Sciences Division of the Department of Energy [DE-FG02-07ER46403]
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We report on the measurements of neck growth in early stage sintering of yttria-stabilized zirconia powders with and without the application of electrical fields. It is concluded that surface diffusion kinetics are not influenced by the application of DC electrical fields and currents. These measurements are in contrast to the influence of electrical fields on grain growth, where weak applied fields have been shown to significantly retard grain growth. The activation energy for surface diffusivity obtained in this way is in the range that is expected from literature values. Together, these results provide further insights into relationships between electrical fields and interfacial phenomena in the sintering and grain growth of ceramic materials.
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