| 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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Bruder, Enrico
Technical University of Darmstadt
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2024Solid solution hardening in CrMnFeCoNi-based high entropy alloy systems studied by a combinatorial approach
- 2024Switching the fracture toughness of single-crystal ZnS using light irradiation
- 2024Mechanical softening of CuX alloys at elevated temperatures studied via high temperature scanning indentationcitations
- 2024{001}-textured Pb(Zr, Ti)O₃ thin films on stainless steel by pulsed laser deposition
- 2024Observation of grain boundary sliding in a lamellar ultrafine‐grained steel
- 2021Switching the fracture toughness of single-crystal ZnS using light irradiationcitations
- 2021From diluted solid solutions to high entropy alloys: Saturation grain size and mechanical properties after high pressure torsioncitations
- 2021Dislocation-toughened ceramicscitations
- 2021Nanoindentation pop‐in in oxides at room temperature: Dislocation activation or crack formation?citations
- 2021Microstructure formation and mechanical properties of ODS steels built by laser additive manufacturing of nanoparticle coated iron-chromium powderscitations
- 2019Strain-rate sensitive ductility in a low-alloy carbon steel after quenching and partitioning treatmentcitations
- 2019Towards manufacturing of Nd-Fe-B magnets by continuous rotary swaging of cast alloycitations
- 2018Anisotropic local hardening in hot-deformed Nd-Fe-B permanent magnetscitations
Places of action
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article
Switching the fracture toughness of single-crystal ZnS using light irradiation
Abstract
<jats:p>An enormous change in the dislocation-mediated plasticity has been found in a bulk semiconductor that exhibits the photoplastic effect. Herein, we report that UV (365 nm) light irradiation during mechanical testing dramatically decreases the fracture toughness of ZnS. The crack tip toughness on a (001) single-crystal ZnS, as measured by the near-tip crack opening displacement method, is increased by ∼45% in complete darkness compared to that in UV light. The increase in fracture toughness is attributed to a significant increase in the dislocation mobility in darkness, as explained by the crack tip dislocation shielding model. Our finding suggests a route toward controlling the fracture toughness of photoplastic semiconductors by tuning the light irradiation.</jats:p>