Blind lattice-parameter determination of cubic and tetragonal phases with high accuracy using a single EBSD pattern

Han, M, Chen, C, Zhao, G, Li, L, Nolze, G, Yu, B, Huang, X and Zhu, Y 2018, 'Blind lattice-parameter determination of cubic and tetragonal phases with high accuracy using a single EBSD pattern', Acta Crystallographica Section A, vol. 74, no. 6, pp. 630-639.


Document type: Journal Article
Collection: Journal Articles

Title Blind lattice-parameter determination of cubic and tetragonal phases with high accuracy using a single EBSD pattern
Author(s) Han, M
Chen, C
Zhao, G
Li, L
Nolze, G
Yu, B
Huang, X
Zhu, Y
Year 2018
Journal name Acta Crystallographica Section A
Volume number 74
Issue number 6
Start page 630
End page 639
Total pages 10
Publisher Wiley-Blackwell
Abstract The Bravais lattices and their lattice parameters are blindly determined using electron backscatter diffraction (EBSD) patterns of materials with cubic or tetragonal crystal structures. Since the geometric relationships in a single EBSD pattern are overdetermined, the relative errors of determining the lattice parameters as well as the axial ratios are confined to about 0.7 ± 0.4% and 0.07 ± 0.03%, respectively, for ideal simulated EBSD patterns. The accuracy of the crystal orientation determination reaches about 0.06 ± 0.03°. With careful manual band detection, the accuracy of determining lattice parameters from experimental patterns can be as good as from simulated patterns, although the results from simulated patterns are often better than expermental patterns, which are lower quality and contain uncertain systematic errors. The reasonably high accuracy is obtained primarily because the detection of the diffracting-plane traces and zone axes is relatively accurate. The results here demonstrate that the developed procedure based on the EBSD technique presents a reliable tool for crystallographic characterization of the Bravais lattices of unknown phases.
Subject Condensed Matter Modelling and Density Functional Theory
Composite and Hybrid Materials
Nanomaterials
Keyword(s) Bravais lattices
EBSD
electron backscatter diffraction
Kikuchi patterns
lattice parameters
DOI - identifier 10.1107/S2053273318010963
Copyright notice © International Union of Crystallography, 2018
ISSN 2053-2733
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