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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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Srivastava, Vijay
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Topics
Publications (10/10 displayed)
- 2023Influence of hybrid nano/micro particles on the mechanical performance of cross-ply carbon fibre fabric reinforced epoxy polymer composite materialscitations
- 2023Review on the Development of Smart Materials, Including Shape Memory Alloys, Characterization, and Recent Applicationscitations
- 2019Nanoscale magnetic phase competition throughout the N i50-x C ox M n40 S n10 phase diagramcitations
- 2016Magnetic phase competition in off-stoichiometric martensitic heusler alloyscitations
- 2013Study of the cofactor conditionscitations
- 2012Small-angle neutron scattering study of magnetic ordering and inhomogeneity across the martensitic phase transformation in Ni 50-xCo xMn 40Sn 10 alloyscitations
- 2011The direct conversion of heat to electricity using multiferroic alloyscitations
- 2011A weak compatibility condition for precipitation with application to the microstructure of PbTe-Sb2Te3 thermoelectricscitations
- 2010Identification of quaternary shape memory alloys with near-zero thermal hysteresis and unprecedented functional stabilitycitations
- 2010Hysteresis and unusual magnetic properties in the singular Heusler alloy Ni45 Co5 Mn40 Sn10citations
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article
The direct conversion of heat to electricity using multiferroic alloys
Abstract
<p>We demonstrate a new method for the direct conversion of heat to electricity using the recently discovered multiferroic alloy, Ni <sub>45</sub> Co <sub>5</sub> Mn <sub>40</sub> Sn <sub>10</sub> <sup>[1]</sup>. This alloy undergoes a low hysteresis, reversible martensitic phase transformation from a nonmagnetic martensite phase to a strongly ferromagnetic austenite phase upon heating. When biased by a suitably placed permanent magnet, heating through the phase transformation causes a sudden increase of the magnetic moment to a large value. As a consequence of Faraday's law of induction, this drives a current in a surrounding circuit. Theory predicts that under optimal conditions the performance compares favorably with the best thermoelectrics. Because of the low hysteresis of the alloy, a promising area of application of this concept appears to be energy conversion at small ΔT, suggesting a possible route to the conversion of the vast amounts of energy stored on earth at small temperature difference. We postulate other new methods for the direct conversion of heat to electricity suggested by the underlying theory.</p>