| 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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Castellero, Alberto
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2023Experimental and computational study of the role of defects and secondary phases on the thermoelectric properties of TiNi<sub />1+xSn<sub /> (0 ≤ x ≤ 0.12) half Heusler compoundscitations
- 2020Synthesis and Characterization of Thermoelectric Co2XSn (X = Zr, Hf) Heusler Alloyscitations
- 2014Rapid solidification of silver-rich Ag-Cu-Zr-Al alloyscitations
- 2014Cold rolling of amorphous/crystalline Ag73.2Cu17.1Zr9.7 compositecitations
- 2013Ductility and toughness of cold-rolled metallic glassescitations
- 2013Effects of Chemical Composition on Nanocrystallization Kinetics, Microstructure and Magnetic Properties of Finemet-Type Amorphous Alloyscitations
- 2012Preparation and Characterization of Fe-Based Metallic Glasses with Pure and Raw Elementscitations
- 2012Preparation and characterization of Fe-based bulk metallic glasses in plate formcitations
- 2012Rapid solidification of silver-rich Ag-Cu-Zr alloyscitations
- 2011Constrained deformation of an Al based amorphous alloy by cold rolling
- 2007Thermal stability and hardness of Mg-Cu-Au-Y amorphous alloyscitations
- 2007On the glass transition in metallic melts
Places of action
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article
Synthesis and Characterization of Thermoelectric Co2XSn (X = Zr, Hf) Heusler Alloys
Abstract
<jats:p>In this work, we report the results of an experimental investigation on the synthesis, structure, microstructure, mechanical, electrical conductivity, and Seebeck coefficient of Co2XSn (X = Zr, Hf) alloys. In both the alloys, the main constituent is a full Heusler-type compound that coexists with small amounts of secondary phases. Both alloys show a rather high Vickers hardness (around 900 HV) and an indentation fracture toughness typical of ceramics (around 2 MPa·m1/2). The electronic transport properties of the two alloys were measured for the first time. The temperature dependence of both the Seebeck coefficient and the electrical conductivity of the two alloys shows a change in correspondence of the Curie temperature. The Seebeck coefficient reaches a constant plateau, while the electrical conductivities show a transition from metallic to semiconductor behavior. As a consequence, almost constant values of the power factor have been obtained for the power factor above the Curie temperature, which is promising for an efficient exploitation of thermal gradients of several hundreds of degree in waste heat harvesting applications. Finally, on the basis of results from this work and from the literature, the effect of the substitution of the X element on the electronic transport properties in the series Co2XSn (X = Ti, Zr, Hf) is discussed.</jats:p>