Local Structural Modifications in Metallic Micropillars Induced by Plasma Focused Ion Beam Processing

A focused ion beam scanning electron microscope (FIB-SEM) is a powerful tool that is routinely used for scale imaging from the micro- to nanometer scales, micromachining, prototyping, and metrology. In spite of the significant capabilities of a FIB-SEM, there are inherent artefacts (e.g., structural...

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Main Authors: Kritika Singh, Surya Snata Rout, Christina Krywka, Anton Davydok
Format: Article
Language:English
Published: MDPI AG 2023-11-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/16/22/7220
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author Kritika Singh
Surya Snata Rout
Christina Krywka
Anton Davydok
author_facet Kritika Singh
Surya Snata Rout
Christina Krywka
Anton Davydok
author_sort Kritika Singh
collection DOAJ
description A focused ion beam scanning electron microscope (FIB-SEM) is a powerful tool that is routinely used for scale imaging from the micro- to nanometer scales, micromachining, prototyping, and metrology. In spite of the significant capabilities of a FIB-SEM, there are inherent artefacts (e.g., structural defects, chemical interactions and phase changes, ion implantation, and material redeposition) that are produced due to the interaction of Ga<sup>+</sup> or other types of ions (e.g., Xe<sup>+</sup>, Ar<sup>+</sup>, O<sup>+</sup>, etc.) with the sample. In this study, we analyzed lattice distortion and ion implantation and subsequent material redeposition in metallic micropillars which were prepared using plasma focus ion beam (PFIB) milling. We utilized non-destructive synchrotron techniques such as X-ray fluorescence (XRF) and X-ray nanodiffraction to examine the micropillars prepared using Xe<sup>+</sup> ion energies of 10 keV and 30 keV. Our results demonstrate that higher Xe ion energy leads to higher density of implanted ions within the redeposited and milled material. The mixing of ions in the redeposited material significantly influences the lattice structure, causing deformation in regions with higher ion concentrations. Through an X-ray nanodiffraction analysis, we obtained numerical measurements of the strain fields induced in the regions, which revealed up to 0.2% lattice distortion in the ion bombardment direction.
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spelling doaj.art-1fc1ea6a04664be0ab06d1390cfbcf212023-11-24T14:53:53ZengMDPI AGMaterials1996-19442023-11-011622722010.3390/ma16227220Local Structural Modifications in Metallic Micropillars Induced by Plasma Focused Ion Beam ProcessingKritika Singh0Surya Snata Rout1Christina Krywka2Anton Davydok3Institute of Material Physics, Hemholtz-Zentrum Hereon, Outstation at DESY Notkestr 85, 22607 Hamburg, GermanySchool of Earth and Planetary Sciences, National Institute of Science Education and Research, HBNI, Jatani 752050, IndiaInstitute of Material Physics, Hemholtz-Zentrum Hereon, Outstation at DESY Notkestr 85, 22607 Hamburg, GermanyInstitute of Material Physics, Hemholtz-Zentrum Hereon, Outstation at DESY Notkestr 85, 22607 Hamburg, GermanyA focused ion beam scanning electron microscope (FIB-SEM) is a powerful tool that is routinely used for scale imaging from the micro- to nanometer scales, micromachining, prototyping, and metrology. In spite of the significant capabilities of a FIB-SEM, there are inherent artefacts (e.g., structural defects, chemical interactions and phase changes, ion implantation, and material redeposition) that are produced due to the interaction of Ga<sup>+</sup> or other types of ions (e.g., Xe<sup>+</sup>, Ar<sup>+</sup>, O<sup>+</sup>, etc.) with the sample. In this study, we analyzed lattice distortion and ion implantation and subsequent material redeposition in metallic micropillars which were prepared using plasma focus ion beam (PFIB) milling. We utilized non-destructive synchrotron techniques such as X-ray fluorescence (XRF) and X-ray nanodiffraction to examine the micropillars prepared using Xe<sup>+</sup> ion energies of 10 keV and 30 keV. Our results demonstrate that higher Xe ion energy leads to higher density of implanted ions within the redeposited and milled material. The mixing of ions in the redeposited material significantly influences the lattice structure, causing deformation in regions with higher ion concentrations. Through an X-ray nanodiffraction analysis, we obtained numerical measurements of the strain fields induced in the regions, which revealed up to 0.2% lattice distortion in the ion bombardment direction.https://www.mdpi.com/1996-1944/16/22/7220focused ion beam millingTiAlmagnesiumsynchrotronnanodiffractionX-ray fluorescence
spellingShingle Kritika Singh
Surya Snata Rout
Christina Krywka
Anton Davydok
Local Structural Modifications in Metallic Micropillars Induced by Plasma Focused Ion Beam Processing
Materials
focused ion beam milling
TiAl
magnesium
synchrotron
nanodiffraction
X-ray fluorescence
title Local Structural Modifications in Metallic Micropillars Induced by Plasma Focused Ion Beam Processing
title_full Local Structural Modifications in Metallic Micropillars Induced by Plasma Focused Ion Beam Processing
title_fullStr Local Structural Modifications in Metallic Micropillars Induced by Plasma Focused Ion Beam Processing
title_full_unstemmed Local Structural Modifications in Metallic Micropillars Induced by Plasma Focused Ion Beam Processing
title_short Local Structural Modifications in Metallic Micropillars Induced by Plasma Focused Ion Beam Processing
title_sort local structural modifications in metallic micropillars induced by plasma focused ion beam processing
topic focused ion beam milling
TiAl
magnesium
synchrotron
nanodiffraction
X-ray fluorescence
url https://www.mdpi.com/1996-1944/16/22/7220
work_keys_str_mv AT kritikasingh localstructuralmodificationsinmetallicmicropillarsinducedbyplasmafocusedionbeamprocessing
AT suryasnatarout localstructuralmodificationsinmetallicmicropillarsinducedbyplasmafocusedionbeamprocessing
AT christinakrywka localstructuralmodificationsinmetallicmicropillarsinducedbyplasmafocusedionbeamprocessing
AT antondavydok localstructuralmodificationsinmetallicmicropillarsinducedbyplasmafocusedionbeamprocessing