Journal
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
Volume 92, Issue 7, Pages 1580-1585Publisher
WILEY
DOI: 10.1111/j.1551-2916.2009.03064.x
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Funding
- Pennsylvania Department of Community and Economic Development
- National Science Foundation [DMR-0520425]
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A dual-beam focused ion beam scanning electron microscope was used to collect a series of parallel electron backscatter diffraction maps of polycrystalline yttria. Using characteristics of the triple junctions, the individual layers were aligned and the geometries of the grain-boundary planes between the layers were determined. This information was used to calculate the five-parameter grain-boundary character distribution (GBCD) and grain-boundary energy distribution (GBED). The GBCD derived from the three-dimensional data was qualitatively the same as that derived from a stereological analysis of the same data. The anisotropy in the GBCD of yttria is relatively weak compared with other ceramics and is inversely correlated to the GBED.
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