| People | Locations | Statistics |
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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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Hammerschmidt, Thomas
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2022Elemental (im-)miscibility determines phase formation of multinary nanoparticles co-sputtered in ionic liquidscitations
- 2020DFT-CEF approach for the thermodynamic properties and volume of stable and metastable Al–Ni compounds
- 2020Experimental and theoretical investigation on phase formation and mechanical properties in Cr-Co-Ni alloys processed using a novel thin-film quenching techniquecitations
- 2019Additive manufacturing of CMSX-4 Ni-base superalloy by selective laser meltingcitations
- 2019Crowd-sourcing materials-science challenges with the NOMAD 2018 Kaggle competitioncitations
- 2019Imaging individual solute atoms at crystalline imperfections in metalscitations
- 2019Stress-induced formation of TCP phases during high temperature low cycle fatigue loading of the single-crystal Ni-base superalloy ERBO/1citations
- 2018Development of Single-Crystal Ni-Base Superalloys Based on Multi-criteria Numerical Optimization and Efficient Use of Refractory Elementscitations
- 2016Atomistically informed extended Gibbs energy description for phase-field simulation of tempering of martensitic steel
- 2016Crystal-structure analysis with moments of the density-of-statescitations
- 2015Microsegregation and precipitates of an as-cast Co-based superalloycitations
Places of action
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article
Imaging individual solute atoms at crystalline imperfections in metals
Abstract
irectly imaging all atoms constituting a material and, maybe more importantly, crystalline defects that dictate materials’ properties, remains a formidable challenge. Here, we propose a new approach to chemistry-sensitive field-ion microscopy (FIM) combining FIM with time-of-flight mass-spectrometry (tof-ms). Elemental identification and correlation to FIM images enabled by data mining of combined tof-ms delivers a truly analytical-FIM (A-FIM). Contrast variations due to different chemistries is also interpreted from density-functional theory (DFT). A-FIM has true atomic resolution and we demonstrate how the technique can reveal the presence of individual solute atoms at specific positions in the microstructure. The performance of this new technique is showcased in revealing individual Re atoms at crystalline defects formed in Ni–Re binary alloy during creep deformation. The atomistic details offered by A-FIM allowed us to directly compare our results with simulations, and to tackle a long-standing question of how Re extends lifetime of Ni-based superalloys in service at high-temperature.