HAADF-STEM observations of a sum13 grain boundary in alpha-Al2O3 from two orthogonal directions

Shinya Azuma, Naoya Shibata, Scott Findlay, Teruyasu Mizoguchi, T Yamamoto, Yuichi Ikuhara

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10 Citations (Scopus)


Atomic structure of a = 13, [image omitted] grain boundary in -Al2O3 was directly observed by aberration-corrected Z-contrast scanning transmission electron microscopy. Combining observations from two orthogonal directions parallel to the grain boundary plane [image omitted], the three-dimensional atomic configuration of the grain boundary core region can be determined, and proves to be in a good agreement with the stable boundary structure predicted by first-principles calculations
Original languageEnglish
Pages (from-to)539 - 546
Number of pages8
JournalPhilosophical Magazine Letters
Issue number8
Publication statusPublished - 2010
Externally publishedYes

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