Revealing nano-scale lattice distortions in implanted material with 3D Bragg ptychography
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...
| Main Authors: | , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
Springer Nature
2021
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| _version_ | 1826308458123624448 |
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| author | Li, P Phillips, NW Leake, S Allain, M Hofmann, F Chamard, V |
| author_facet | Li, P Phillips, NW Leake, S Allain, M Hofmann, F Chamard, V |
| author_sort | Li, P |
| collection | OXFORD |
| description | 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. |
| first_indexed | 2024-03-07T07:19:48Z |
| format | Journal article |
| id | oxford-uuid:63d91dd4-c679-4813-a955-1a93968d5ea2 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T07:19:48Z |
| publishDate | 2021 |
| publisher | Springer Nature |
| record_format | dspace |
| spelling | oxford-uuid:63d91dd4-c679-4813-a955-1a93968d5ea22022-10-04T07:03:46ZRevealing nano-scale lattice distortions in implanted material with 3D Bragg ptychographyJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:63d91dd4-c679-4813-a955-1a93968d5ea2EnglishSymplectic ElementsSpringer Nature2021Li, PPhillips, NWLeake, SAllain, MHofmann, FChamard, VSmall 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. |
| spellingShingle | Li, P Phillips, NW Leake, S Allain, M Hofmann, F Chamard, V Revealing nano-scale lattice distortions in implanted material with 3D Bragg ptychography |
| title | Revealing nano-scale lattice distortions in implanted material with 3D Bragg ptychography |
| title_full | Revealing nano-scale lattice distortions in implanted material with 3D Bragg ptychography |
| title_fullStr | Revealing nano-scale lattice distortions in implanted material with 3D Bragg ptychography |
| title_full_unstemmed | Revealing nano-scale lattice distortions in implanted material with 3D Bragg ptychography |
| title_short | Revealing nano-scale lattice distortions in implanted material with 3D Bragg ptychography |
| title_sort | revealing nano scale lattice distortions in implanted material with 3d bragg ptychography |
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