| 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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Sharma, Amit
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (26/26 displayed)
- 2024Pulsed electrodeposition of homogenous and heterogeneous solid solution layered structure in high strength nanocrystalline Co–Cu alloyscitations
- 2024Micromechanics reveal strain rate dependent transition between dislocation mechanisms in a dual phase high entropy alloy ; La micromécanique révèle une transition entre les mécanismes de dislocation dépendant de la vitesse de déformation dans un alliage à double phase et à haute entropie
- 2024Meta-Learning for Real-World Class Incremental Learning: A Transformer-Based Approach
- 2024Magnetron sputter deposition of amorphous silicon–SiO 2 quantized nanolaminatescitations
- 2024Magnetron Sputter Deposition of Amorphous Silicon–SiO<sub>2</sub> Quantized Nanolaminatescitations
- 2024Micromechanical response of an electrodeposited NiP metallic glass by pillar compression under extreme conditionscitations
- 2023Synthesis and mechanical properties of co-deposited W nanoparticle and ZrCuAg metallic glass thin film compositescitations
- 2023Mechanical properties and thermal stability of thin film metallic glass compared to bulk metallic glass from ambient to elevated temperaturescitations
- 2023Fabrication and extreme micromechanics of additive metal microarchitecturescitations
- 2023Unlocking the potential of CuAgZr metallic classes: a comprehensive exploration with combinatorial synthesis, high-throughput characterization, and machine learningcitations
- 2023Solid-solution and precipitation softening effects in defect-free faceted nickel-iron nanoparticlescitations
- 2023Strengthening of 3D printed Cu micropillar in Cu-Ni core-shell structurecitations
- 2023Combinatorial reactive sputtering with Auger parameter analysis enables synthesis of wurtzite Zn 2 TaN 3citations
- 2023Cutting-edge advances in modeling the blood-brain barrier and tools for its reversible permeabilization for enhanced drug delivery into the braincitations
- 2023Correlated disorder by defects clusters in LiNbO3 single crystals after crys-tal ion-slicingcitations
- 2023Machine learning of twin/matrix interfaces from local stress field
- 2022Microstructure evolution and mechanical response of a boron-modified Ti-6Al-4V alloy during high-pressure torsion processingcitations
- 2022IoT Based Smart Sewerage Management System for Moradabad City
- 2022Hybrid hierarchical nanolattices with porous platinum coatingcitations
- 2022Corrosion behavior of a series of combinatorial physical vapor deposition coatings on SiC in a simulated boiling water reactor environmentcitations
- 2021Direct observation of the elasticity-texture relationship in pyrolytic carbon via in situ micropillar compression and digital image correlationcitations
- 2021Thermal stability of thin Au films deposited on salt whiskerscitations
- 2021When more is less: plastic weakening of single crystalline Ag nanoparticles by the polycrystalline Au shellcitations
- 2020Recent Nanocarrier Approaches for Targeted Drug Delivery in Cancer Therapycitations
- 2019Grain growth and solid-state dewetting of Bi-Crystal Ni-Fe thin films on sapphirecitations
- 2017Titanium aluminium nitride and titanium boride multilayer coatings designed to combat tool wearcitations
Places of action
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article
Grain growth and solid-state dewetting of Bi-Crystal Ni-Fe thin films on sapphire
Abstract
We studied the solid-state dewetting behavior of thin Ni<sub>80</sub>Fe<sub>20</sub>films deposited on basal plane oriented sapphire substrate and annealed in the range of temperatures of 1023–1323 K. All studied films exhibited strong <111> texture and maze bicrystal microstructure, with only two grains misoriented by 60° around the common <111> axis present in the film. The morphology of partially dewetted films changed from the one typical for polycrystalline thin films to the one typical for single crystalline heteroepitaxial films with increasing temperatures and annealing times. This change of dewetting behavior was associated with the fast grain growth in the films. The films of pure Ni of identical thickness, annealed under identical conditions exhibited significantly slower grain growth and lower thermal stability. Both the high-resolution X-ray diffraction and the cross-sectional high-resolution transmission electron microscopy observations revealed the phase separation of the Ni<sub>80</sub>Fe<sub>20</sub>films into two parallel layers of the face-centered cubic (adjacent to the substrate) and hexagonal close-packed (on the top of the film) phases of similar compositions. Our density functional theory (DFT) calculations indicated that this phase separation is driven by the decrease of the film surface and interface energy, leading to the thermodynamically equilibrium thickness of the metastable hexagonal close-packed phase. This phase exhibits higher surface anisotropy than its stable face-centered cubic counterpart and is instrumental in accelerating the grain growth in the film via suppression of grain boundary grooving.