Atomic-Scale Processes of Grain-Boundary Faceting in a Zirconia Bicrystal

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In this paper, we characterized atomic structure of a Σ = 3, [110]/{112} grain boundary in a yttria-stabilized cubic zirconia bicrystal. High-resolution transmission electron microscopy (HRTEM) clearly revealed that the grain boundary migrated to form {111}/{115} periodical facets, although the bicrystal was initially joined so as to have the symmetric straight boundary plane of {112}. Atomic-scale process for the facet growth could be modeled by the continuous flippings of atoms at the boundary core.

Info:

Periodical:

Materials Science Forum (Volumes 558-559)

Edited by:

S.-J.L. Kang, M.Y. Huh, N.M. Hwang, H. Homma, K. Ushioda and Y. Ikuhara

Pages:

955-958

Citation:

N. Shibata et al., "Atomic-Scale Processes of Grain-Boundary Faceting in a Zirconia Bicrystal", Materials Science Forum, Vols. 558-559, pp. 955-958, 2007

Online since:

October 2007

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$38.00

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