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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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Brognara, Andrea
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2024Tailoring Mechanical Properties and Shear Band Propagation in ZrCu Metallic Glass Nanolaminates Through Chemical Heterogeneities and Interface Densitycitations
- 2024Tailoring Mechanical Properties and Shear Band Propagation in ZrCu Metallic Glass Nanolaminates Through Chemical Heterogeneities and Interface Densitycitations
- 2024Tailoring atomic and microstructural heterogeneities in metallic glass thin films to control and enhance their mechanical properties
- 2024Nanoengineering high-performance metallic thin films with large and tunable yield strength and ductility
- 2024Boosting Mechanical Properties of Metallic Thin Films Through Advanced Nanoengineered Design Strategies
- 2023Strong and ductile thin film metallic glasses through advanced nanoscale design strategies
- 2023Nanoengineering the glassy state: toward novel thin film metallic glasses with outstanding combination of mechanical properties
- 2023Strong and Ductile Metallic Glass Films Through Advanced Nanoarchitectural Design Strategies
- 2023Effect of composition and nanostructure on mechanical properties and thermal stability of ZrCuAl x thin film metallic glasses
- 2023Nanoengineered thin film metallic glasses with mutual combination of large yield strength and ductility
- 2023Mechanical properties and thermal stability of ZrCuAlx thin film metallic glasses: Experiments and first-principle calculationscitations
- 2022Effect of composition and nanostructure on the mechanical properties and thermal stability of Zr100-xCux thin film metallic glassescitations
- 2022Effect of composition and nanoarchitecture on mechanical properties of thin film metallic glasses
- 2021On the mechanical properties and thermal stability of ZrxCu100-x thin film metallic glasses with different compositions
- 2021Effect of composition on mechanical properties and thermal stability of ZrCu thin film metallic glasses
- 2020Light management in TiO 2 thin films integrated with Au plasmonic nanoparticlescitations
Places of action
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article
Tailoring Mechanical Properties and Shear Band Propagation in ZrCu Metallic Glass Nanolaminates Through Chemical Heterogeneities and Interface Density
Abstract
The design of high-performance structural thin films consistently seeks to achieve a delicate equilibrium by balancing outstanding mechanical properties like yield strength, ductility, and substrate adhesion, which are often mutually exclusive. Metallic glasses (MGs) with their amorphous structure have superior strength, but usually poor ductility with catastrophic failure induced by shear bands (SBs) formation. Herein, we introduce an innovative approach by synthesizing MGs characterized by large and tunable mechanical properties, pioneering a nanoengineering design based on the control of nanoscale chemical/structural heterogeneities. This is realized through a simplified model Zr24Cu76/Zr61Cu39, fully amorphous nanocomposite with controlled nanoscale periodicity (Λ, from 400 down to 5 nm), local chemistry, and glass–glass interfaces, while focusing in-depth on the SB nucleation/propagation processes. The nanolaminates enable a fine control of the mechanical properties, and an onset of crack formation/percolation (>1.9 and 3.3%, respectively) far above the monolithic counterparts. Moreover, we show that SB propagation induces large chemical intermixing, enabling a brittle-to-ductile transition when Λ ≤ 50 nm, reaching remarkably large plastic deformation of 16% in compression and yield strength ≈2 GPa. Overall, the nanoengineered control of local heterogeneities leads to ultimate and tunable mechanical properties opening up a new approach for strong and ductile materials.