Skip to Main content Skip to Navigation
Journal articles

Three-Dimensional Imaging of Phase Ordering in an Fe-Al Alloy by Bragg Ptychography

Abstract : We show three-dimensional images of phase ordering in a Fe 55 Al 45 alloy obtained by coherent x-ray diffraction Bragg ptychography. Fe-Al alloys display ordered phases where the atoms organize on sublattices resulting in the emergence of otherwise forbidden superlattice reflections. The degeneracy of the ordering results in antiphase domain boundaries that, in addition to the general lattice strain, provide phase shifts of the diffracted beam depending on the reflection. The reconstructed phase images can be separated into components originating from B2 phase domains and lattice strain by performing Bragg ptychography on both the (002) fundamental and the (001) superlattice reflections.
Document type :
Journal articles
Complete list of metadata

Cited literature [40 references]  Display  Hide  Download
Contributor : Patrick Ferrand Connect in order to contact the contributor
Submitted on : Wednesday, January 9, 2019 - 4:25:50 PM
Last modification on : Friday, November 5, 2021 - 4:52:15 PM


Publisher files allowed on an open archive


Distributed under a Creative Commons Attribution 4.0 International License




Chan Kim, Virginie Chamard, Jörg Hallmann, Thomas Roth, Wei Lu, et al.. Three-Dimensional Imaging of Phase Ordering in an Fe-Al Alloy by Bragg Ptychography. Physical Review Letters, American Physical Society, 2018, 121 (25), pp.256101. ⟨10.1103/physrevlett.121.256101⟩. ⟨hal-01975963⟩



Record views


Files downloads