Crystal orientation and detector distance effects on resolving pseudosymmetry by electron backscatter diffraction
Name
yr5068.pdf
Description
Published version
Size
2.93 MB
Format
Unknown
Checksum (MD5)
8fb8c8fb8f5061e53e1d20c11eeb9da4
Author(s)
Pang, Edward L.
Schuh, Christopher A.
Date Issued
March 2021
Journal
Journal of Applied Crystallography
Publisher
International Union of Crystallography (IUCr)
Citation
Pang, Edward L and Schuh, Christopher A. 2021. "Crystal orientation and detector distance effects on resolving pseudosymmetry by electron backscatter diffraction." Journal of Applied Crystallography, 54 (2).
Version
Final published version
Abstract
Accurately indexing pseudosymmetric materials has long proven challenging for electron backscatter diffraction. The recent emergence of intensity-based indexing approaches promises an enhanced ability to resolve pseudosymmetry compared with traditional Hough-based indexing approaches. However, little work has been done to understand the effects of sample position and orientation on the ability to resolve pseudosymmetry, especially for intensity-based indexing approaches. Thus, in this work the effects of crystal orientation and detector distance in a model tetragonal ZrO2 (c/a = 1.0185) material are quantitatively investigated. The orientations that are easiest and most difficult to correctly index are identified, the effect of detector distance on indexing confidence is characterized, and these trends are analyzed on the basis of the appearance of specific zone axes in the diffraction patterns. The findings also point to the clear benefit of shorter detector distances for resolving pseudosymmetry using intensity-based indexing approaches.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1107/s1600576721001229
