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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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Zybała, Rafał
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Publications (9/9 displayed)
- 2024Mg nanostructures with controlled dominant c-plane or m-plane facets by DC magnetron sputter depositioncitations
- 2024Using SPS Sintering System in Fabrication of Advanced Semiconductor Materials
- 2023Microstructural Evolution of Ni-SiC Composites Manufactured by Spark Plasma Sinteringcitations
- 2021Review of rapid fabrication methods of skutterudite materialscitations
- 2019Microstructure and thermoelectric properties of p and n type doped β-FeSi2 fabricated by mechanical alloying and pulse plasma sinteringcitations
- 2018Skutterudite (CoSb3) thermoelectric nanomaterials fabricated by Pulse Plasma in Liquidcitations
- 2017Effect of metallic coating on the properties of copper-silicon carbide compositescitations
- 2017Synthesis and characterization of antimony telluride for thermoelectric And optoelectronic applicationscitations
- 2017Microstructure and Thermal Properties of Cu-SiC Composite Materials Depending on the Sintering Techniquecitations
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article
Microstructure and thermoelectric properties of p and n type doped β-FeSi2 fabricated by mechanical alloying and pulse plasma sintering
Abstract
N and p type doped, ß- FeSi2 was obtained by pulse plasma sintering (PPS) of mechanically alloyed Fe, Si with Mn, Co, Al, P as dopants. The consolidated samples were subsequently annealed at 1123 K for 36 ks. SEM observations proved that the samples consolidated by PPS preserve fine grain size of the mechanically alloyed ß-FeSi2 and the low porosity. The results of XRD measurements confirmed for all samples a nearly complete transformation from.- and .- into ß-FeSi2 phase after annealing. Their thermal conductivity decreases significantly with the increase of the test temperature in the entire rage of the temperatures of practical meaning. With the exception of the Mn-doped, all samples exhibited a high Seebeck coefficient, with its highest value for FeSi1.95P0.05 exceeding -400 µV/K up to 550 K. The Mn and Co –Fe site dopants revealed a stronger effect on the thermoelectric properties with 0.15 ZT parameter at 773 K for Fe0.97Co0.03Si2 alloy. The thermoelectric properties of PPS sintered samples were compared to the previously reported consolidated by hot pressing and spark plasma sintering. It has been concluded that the pulse plasma sintering offers an alternative to the already explored methods of production of thermoelectric materials.