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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Chen, Jun
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Topics
Publications (19/19 displayed)
- 2024Graphene-enhanced, wear-resistant and thermal-conductive, anti-/de-icing Gelcoat composite coatingcitations
- 2023Elaboration and characterisation of polypropylene/ multi-walled carbon nanotubes nanocomposites to fabricate 3D-printed parts
- 2022Stress relaxation in III-V nitrides: investigation of metallic atoms interaction with the N-vacancycitations
- 2022Cu-THQ-EFG Composite for Highly Selective Electrochemical CO2 Reduction to Formate at Low Overpotentialscitations
- 2020Nanodomain patterns in ultra-tetragonal lead titanate (PbTiO 3 )citations
- 2020Nanodomain Patterns in Ultra-Tetragonal Lead Titanate (PbTiO3)citations
- 2019Misorientation dependence grain boundary complexions in <111> symmetric tilt Al grain boundariescitations
- 2018A Theoretical Investigation of the Miscibility and Structural Properties of In x Al y Ga 1−x−y N Alloyscitations
- 2018A High-Throughput Screening Approach to Identify Therapeutics for the Treatment of Diamond-Blackfan Anaemia
- 2017Experimental phase diagram of zero-bias conductance peaks in superconductor/semiconductor nanowire devicescitations
- 2017Stress-induced phase transition in lead-free relaxor ferroelectric compositescitations
- 2015High Acetic Acid Production Rate Obtained by Microbial Electrosynthesis from Carbon Dioxidecitations
- 2015Improvement by Nanofibers of Load Transfer in Carbon Fiber Reinforced Compositescitations
- 2014Hybrid carbon nanotube—silica/ polyvinyl alcohol nanocomposites films: preparation and characterisationcitations
- 2014Chemical activity of oxygen vacancies on ceria: a combined experimental and theoretical study on CeO2(111)citations
- 2009Corrosion of friction stir welded magnesium alloy AM50citations
- 2008Microstructure evolution and tensile properties of friction-stir-welded AM50 magnesium alloycitations
- 2007Electrochemical behavior of magnesium alloys in simulated body fluids
- 2005'Stuffed' conducting polymerscitations
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article
Misorientation dependence grain boundary complexions in <111> symmetric tilt Al grain boundaries
Abstract
Since polycrystalline alloys consist of a complex network of various types of grain boundaries (GBs), detailed atomic-scale analysis of how some impurities are distributed at every type of GBs is necessary to fully understand the implications of GB segregation on material's performance. In this study, we present the atomic-scale structural combined with a chemical analysis of segregation induced GB complexions across the various types of Al alloy 7075 GBs using aberration-corrected microscopy and crystal orientation mapping assisted with precession electron diffraction. The result shows multilayer Cu GB segregation containing non-uniformly segregated mixed atomic columns across the interfaces. Two distinct types of Cu GB segregation behavior were observed, point and parallel array, analyzed by means of a displacement field obtained from the dichromatic pattern. Atomistic simulations were performed to test the energetic feasibility of the observed segregation behavior. As per the knowledge of the authors, this is the first report on experimental analysis of segregation induced periodic ordered structured GB complexions on Al alloy system. Furthermore, every GBs of the films were segregated uniquely forming ordered structures along the interface. The distance between two consecutive high segregated units was periodic for the point segregated GBs and followed a trend of a theoretical model of dislocation spacing. Based on the distance between two high segregated units, it is inferred that highly misorientated GBs are more segregated than low misoriented GBs. This study demonstrates that the misorientation between the neighboring grains significantly influences the segregation behavior across the interface and consequently, the structure of segregation-induced GB complexions.