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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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Chen, Xi
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2024Finite‐Element Analysis of an Antagonistic Bistable Shape Memory Alloy Beam Actuator
- 2024A Methodology for Robust Multislice Ptychographycitations
- 2024Strategic Fabrication of Au4Cu2 NC/ZIF-8 Composite Via In Situ Integration Technique for Enhanced Energy Storage Applicationscitations
- 2024On the importance of the cracking process description for dynamic crack initiation simulation
- 2024In situ synthesis of oriented Zn-Mn-Co-telluride on precursor free CuOcitations
- 2024Water‐Vapor Responsive Metallo‐Peptide Nanofiberscitations
- 2024Roadmap on optical communicationscitations
- 2023Cryogenic characteristics of graphene composites—evolution from thermal conductors to thermal insulatorscitations
- 20232D Si-Ge layered materials as anodes for alkali-cation (Na+, K+) batteriescitations
- 2023Experimental and theoretical insights of binder-free magnesium nickel cobalt selenide star-like nanostructure as electrodecitations
- 2023Structural study of atomically precise doped Au38-xAgx NCs@ ZIF-8 electrode material for energy storage applicationcitations
- 2023Understanding the Diffusion-Dominated Properties of MOF-Derived Ni–Co–Se/C on CuO Scaffold Electrode using Experimental and First Principle Studycitations
- 2023Grain size in low loss superconducting Ta thin films on c axis sapphirecitations
- 2023Bistable Actuation Based on Antagonistic Buckling SMA Beamscitations
- 2022Comparative study of ternary metal chalcogenides (MX; M= Zn–Co–Ni; X= S, Se, Te)citations
- 2022Factors affecting the growth formation of nanostructures and their impact on electrode materialscitations
- 2021Binder-free trimetallic phosphate nanosheets as an electrodecitations
- 2019Nonlinear electrical conductivity through the thickness of multidirectional carbon fiber compositescitations
- 2015Peptide-functionalized zirconia and new zirconia/titanium biocermets for dental applicationscitations
- 2015Biomimetic Mineralization of Recombinamer-Based Hydrogels toward Controlled Morphologies and High Mineral Densitycitations
Places of action
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article
Bistable Actuation Based on Antagonistic Buckling SMA Beams
Abstract
Novel miniature-scale bistable actuators are developed, which consist of two antagonistically coupled buckling shape memory alloy (SMA) beams. Two SMA films are designed as buckling SMA beams, whose memory shapes are adjusted to have opposing buckling states. Coupling the SMA beams in their center leads to a compact bistable actuator, which exhibits a bi-directional snap-through motion by selectively heating the SMA beams. Fabrication involves magnetron sputtering of SMA films, subsequent micromachining by lithography, and systems integration. The stationary force–displacement characteristics of monostable actuators consisting of single buckling SMA beams and bistable actuators are characterized with respect to their geometrical parameters. The dynamic performance of bistable actuation is investigated by selectively heating the SMA beams via direct mechanical contact to a low-temperature heat source in the range of 130–190 °C. The bistable actuation is characterized by a large stroke up to 3.65 mm corresponding to more than 30% of the SMA beam length. Operation frequencies are in the order of 1 Hz depending on geometrical parameters and heat source temperature. The bistable actuation at low-temperature differences provides a route for waste heat recovery.