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Fast microstructure and phase analyses of nanopowders using combined analysis of transmission electron microscopy scattering patterns
Author(s) -
Boullay P.,
Lutterotti L.,
Chateigner D.,
Sicard L.
Publication year - 2014
Publication title -
acta crystallographica section a
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.742
H-Index - 83
ISSN - 2053-2733
DOI - 10.1107/s2053273314009930
Subject(s) - transmission electron microscopy , crystallite , materials science , diffraction , texture (cosmology) , characterization (materials science) , phase (matter) , electron diffraction , scattering , microstructure , energy filtered transmission electron microscopy , nanocrystal , electron backscatter diffraction , anisotropy , crystallography , optics , analytical chemistry (journal) , scanning transmission electron microscopy , nanotechnology , chemistry , computer science , physics , artificial intelligence , composite material , metallurgy , chromatography , organic chemistry , image (mathematics)
The full quantitative characterization of nanopowders using transmission electron microscopy scattering patterns is shown. This study demonstrates the feasibility of the application of so‐called combined analysis, a global approach for phase identification, structure refinement, characterization of anisotropic crystallite sizes and shapes, texture analysis and texture variations with the probed scale, using electron diffraction patterns of TiO 2 and Mn 3 O 4 nanocrystal aggregates and platinum films. Electron diffraction pattern misalignments, positioning, and slight changes from pattern to pattern are directly integrated and refined within this approach. The use of a newly developed full‐pattern search–match methodology for phase identification of nanopowders and the incorporation of the two‐wave dynamical correction for diffraction patterns are also reported and proved to be efficient.