| 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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Hans, Marcus
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (38/38 displayed)
- 2024Temporally-resolved decomposition of Ti 0.12 Al 0.21 B 0.67 thin films at 1000 °Ccitations
- 2024Temporally-resolved decomposition of Ti0.12Al0.21B0.67 thin films at 1000°Ccitations
- 2024The effect of Laves phases and nano-precipitates on the electrochemical corrosion resistance of Mg-Al-Ca alloys under alkaline conditionscitations
- 2024Phase formation, structure and properties of quaternary MAX phase thin films in the Cr-V-C-Al system: A combinatorial study
- 2023Effect of growth temperature and atmosphere exposure time on impurity incorporation in sputtered Mg, Al, and Ca thin filmscitations
- 2023Synthesis of V2AlC thin films by thermal annealing of nanoscale elemental multilayered precursors : Incorporation of layered Ar bubbles and impact on microstructure formationcitations
- 2023Synthesis of V$_{2}$AlC thin films by thermal annealing of nanoscale elemental multilayered precursors: Incorporation of layered Ar bubbles and impact on microstructure formation
- 2023Yttrium incorporation in Cr2AlC : On the metastable phase formation and decomposition of (Cr,Y)2AlC MAX phase thin filmscitations
- 2023Nanoscale clustering in an additively manufactured Zr-based metallic glass evaluated by atom probe tomographycitations
- 2023Yttrium incorporation in Cr$_2$AlC: On the metastable phase formation and decomposition of (Cr,Y)$_2$AlC MAX phase thin filmscitations
- 2023Yttrium incorporation in Cr2AlC: On the metastable phase formation and decomposition of (Cr,Y)2AlC MAX phase thin filmscitations
- 2023Mapping strain across Co80Ta7B13 / Co62Ta6B32 glassy interfaces
- 2023Compositional defects in a MoAlB MAB phase thin film grown by high-power pulsed magnetron sputteringcitations
- 2023Reactive metal additive manufacturing : Surface near ZrN - metallic glass composite formation and mechanical propertiescitations
- 2023Convective Flow Redistribution of Oxygen by Laser Melting of a Zr-Based Amorphous Alloycitations
- 2023Ion kinetic energy- and ion flux-dependent mechanical properties and thermal stability of (Ti,Al)N thin filmscitations
- 2023Ion kinetic energy- and ion flux-dependent mechanical properties and thermal stability of (Ti,Al)N thin filmscitations
- 2023Yttrium incorporation in Cr2AlC : On the metastable phase formation and decomposition of (Cr,Y)(2)AlC MAX phase thin filmscitations
- 2023Yttrium incorporation in Cr2AlC: On the metastable phase formation and decomposition of (Cr,Y)(2)AlC MAX phase thin filmscitations
- 2022On the interplay between microstructure, residual stress and fracture toughness of (Hf-Nb-Ta-Zr)C multi-metal carbide hard coatingscitations
- 2022Phase formation and thermal stability of quaternary MAX phase thin films in the Cr-V-C-Al system: an experimental combinatorial study
- 2022Precipitation-based grain boundary design alters Inter- to Trans-granular Fracture in AlCrN Thin Filmscitations
- 2022Ag Surface and Bulk Segregations in Sputtered ZrCuAlNi Metallic Glass Thin Filmscitations
- 2021Opportunities of combinatorial thin film materials design for the sustainable development of magnesium-based alloyscitations
- 2021Unravelling the ion-energy-dependent structure evolution and its implications for the elastic properties of (V,Al)N thin filmscitations
- 2021Unravelling the ion-energy-dependent structure evolution and its implications for the elastic properties of (V,Al)N thin films
- 2020Oxidation behaviour of V2AlC MAX phase coatingscitations
- 2020Boron Concentration Induced Co-Ta-B Composite Formation Observed in the Transition from Metallic to Covalent Glassescitations
- 2020Boron Concentration Induced Co-Ta-B Composite Formation Observed in the Transition from Metallic to Covalent Glassescitations
- 2020A Proposal for a Composite with Temperature-Independent Thermophysical Properties : HfV2-HfV2O7citations
- 2020Spinodal decomposition of reactively sputtered (V$_{0.64}$Al$_{0.36}$)$_{0.49}$N$_{0.51}$ thin filmscitations
- 2019Remote Tracking of Phase Changes in Cr2AlC Thin Films by In-situ Resistivity Measurementscitations
- 2019Synthesis and Properties of Orthorhombic MoAlB Coatingscitations
- 2019Ion energy control via the electrical asymmetry effect to tune coating properties in reactive radio frequency sputteringcitations
- 2019Ion energy control via the electrical asymmetry effect to tune coating properties in reactive radio frequency sputteringcitations
- 2019Control over the Phase Formation in Metastable Transition Metal Nitride Thin Films by Tuning the Al+ Subplantation Depthcitations
- 2017Unprecedented thermal stability of inherently metastable titanium aluminum nitride by point defect engineeringcitations
- 2016Unprecedented thermal stability of inherently metastable titanium aluminum nitride by point defect engineeringcitations
Places of action
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article
Precipitation-based grain boundary design alters Inter- to Trans-granular Fracture in AlCrN Thin Films
Abstract
Despite their high hardness and indentation modulus, nanostructured crystalline ceramic thin films produced by physical vapour deposition usually lack sufficient fracture strength and toughness. This brittleness is often caused by underdense columnar grain boundaries of low cohesive energy, which serve as preferential paths for crack propagation. In this study, mechanical and structural properties of arc-evaporated Al0.9Cr0.1N thin films were analyzed using micromechanical tests, electron microscopy, atom probe tomography and in situ high-energy high-temperature grazing incidence transmission X-ray diffraction. Vacuum annealing at 1100°C resulted in the formation of regularly-distributed globular cubic Cr(Al)N and elongated cubic CrN precipitates at intracrystalline Cr-enriched sublayers and at columnar grain boundaries with sizes of ∼5 and ∼30 nm, respectively. Consequently, in situ micromechanical testing before and after the heat treatment revealed simultaneous enhancement of Young's modulus, fracture stress and fracture toughness by ∼35, 60 and 10%, respectively. The annealing-induced concomitant improvement of toughness and strength was inferred to precipitations observed within grains as well as at grain boundaries enhancing the cohesive energy of the grain boundaries and thereby altering the crack propagation pathway from inter- to transcrystalline. The here reported experimental data unveil the hitherto untapped potential of precipitation-based grain boundary design for the improvement of mechanical properties of transition metal nitride thin films.