People | Locations | Statistics |
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Ferrari, A. |
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Schimpf, Christian |
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Dunser, M. |
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Thomas, Eric |
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Gecse, Zoltan |
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Tsrunchev, Peter |
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Della Ricca, Giuseppe |
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Cios, Grzegorz |
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Hohlmann, Marcus |
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Dudarev, A. |
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Mascagna, V. |
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Santimaria, Marco |
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Poudyal, Nabin |
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Piozzi, Antonella |
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Mørtsell, Eva Anne |
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Jin, S. |
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Noel, Cédric |
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Fino, Paolo |
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Mailley, Pascal |
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Meyer, Ernst |
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Zhang, Qi |
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Pfattner, Raphael | Brussels |
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Kooi, Bart J. |
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Babuji, Adara |
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Pauporte, Thierry |
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Gallino, Isabella
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2023Characterization of plastic-metal hybrid composites joined by means of reactive Al/Ni multilayers: evaluation of occurring thermal regime
- 2022Silicon carbide formation in reactive silicon-carbon multilayerscitations
- 2022Solid State Joining of a Cold Rolled Zr-Based Bulk Metallic Glass to a Wrought Aluminum Alloy by Power Ultrasonics
- 2022Effect of composition and thermal history on deformation behavior and cluster connections in model bulk metallic glasses
- 2022Selective laser melting of a Fe-Si-Cr-B-C-based complex-shaped amorphous soft-magnetic electric motor rotor with record dimensions
- 2022On the formation of nanocrystalline aluminides during high pressure torsion of Al/Ni alternating foils and post-processing multilayer reactioncitations
- 2021Phase Transformation and Characterization of 3D Reactive Microstructures in Nanoscale Al/Ni Multilayerscitations
- 2021Influence of Processing Route on the Surface Reactivity of Cu47Ti33Zr11Ni6Sn2Si1 Metallic Glass
- 2018On the Fragility of Bulk Metallic Glass Forming Liquids
- 2015Linking Structure to Fragility in Bulk Metallic Glass-Forming Liquidscitations
- 2015Beta Relaxation and Low Temperature Aging of a Gold Based Bulk Metallic Glass
Places of action
article
Phase Transformation and Characterization of 3D Reactive Microstructures in Nanoscale Al/Ni Multilayers
Abstract
Reactive multilayer systems represent an innovative approach for potential usage in chip joining applications. As there are several factors governing the energy release rate and the stored chemical energy, the impact of the morphology and the microstructure on the reaction behavior is of great interest. In the current work, 3D reactive microstructures with nanoscale Al/Ni multilayers were produced by alternating deposition of pure Ni and Al films onto nanostructured Si substrates by magnetron sputtering. In order to elucidate the influence of this 3D morphology on the phase transformation process, the microstructure and the morphology of this system were characterized and compared with a flat reactive multilayer system on a flat Si wafer. The characterization of both systems was carried out before and after a rapid thermal annealing treatment by using scanning and transmission electron microscopy of the cross sections, selected area diffraction analysis, and differential scanning calorimetry. The bent shape of multilayers caused by the complex topography of silicon needles of the nanostructured substrate was found to favor the atomic diffusion at the early stage of phase transformation and the formation of two intermetallic phases Al0.42Ni0.58 and AlNi3 , unlike the flat multilayers that formed a single phase AlNi after reaction.