Skip to Main content Skip to Navigation
Journal articles

Revealing nano-scale lattice distortions in implanted material with 3D Bragg ptychography

Abstract : Small ion-irradiation-induced defects can dramatically alter material properties and speed up degradation. Unfortunately, most of the defects irradiation creates are below the visibility limit of state-of-the-art microscopy. As such, our understanding of their impact is largely based on simulations with major unknowns. Here we present an x-ray crystalline microscopy approach, able to image with high sensitivity, nano-scale 3D resolution and extended field of view, the lattice strains and tilts in crystalline materials. Using this enhanced Bragg ptychography tool, we study the damage helium-ion-irradiation produces in tungsten, revealing a series of crystalline details in the 3D sample. Our results lead to the conclusions that few-atom-large ‘invisible’ defects are likely isotropic in orientation and homogeneously distributed. A partially defect-denuded region is observed close to a grain boundary. These findings open up exciting perspectives for the modelling of irradiation damage and the detailed analysis of crystalline properties in complex materials.
Document type :
Journal articles
Complete list of metadata

https://hal-amu.archives-ouvertes.fr/hal-03465546
Contributor : Patrick Ferrand Connect in order to contact the contributor
Submitted on : Monday, January 31, 2022 - 3:54:14 PM
Last modification on : Thursday, June 9, 2022 - 8:20:09 AM
Long-term archiving on: : Sunday, May 1, 2022 - 7:46:31 PM

File

s41467-021-27224-5.pdf
Publisher files allowed on an open archive

Licence


Distributed under a Creative Commons Attribution 4.0 International License

Identifiers

Collections

Citation

Peng Li, Nicholas Phillips, Steven Leake, Marc Allain, Felix Hofmann, et al.. Revealing nano-scale lattice distortions in implanted material with 3D Bragg ptychography. Nature Communications, Nature Publishing Group, 2021, 12 (1), pp.7059. ⟨10.1038/s41467-021-27224-5⟩. ⟨hal-03465546⟩

Share

Metrics

Record views

246

Files downloads

196