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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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Chrominski, Witold
National Centre for Nuclear Research
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2023Microstructure and properties of AlCr and AlCrFe coatings deposited by magnetron sputteringcitations
- 2023The influence of microstructure and texture on the hardening by annealing effect in cold-rolled titaniumcitations
- 2022Comparison of Microstructure, Texture, and Mechanical Properties of TZ61 and AZ61 Mg Alloys Processed by Differential Speed Rollingcitations
- 2022The Effect of Extrusion Ratio on the Corrosion Resistance of Ultrafine-Grained Mg-4Li-3Al-Zn Alloy Deformed Using Extrusion with a Forward-Backward Oscillating Diecitations
- 2022Effect of annealing on the mechanical and corrosion properties of 316L stainless steel manufactured by laser powder bed fusioncitations
- 2022Corrosion behavior of fine-grained Mg-7.5Li-3Al-1Zn fabricated by extrusion with a forward-backward rotating die (KoBo)citations
- 2021Microstructure and Thermoelectric Properties of Doped FeSi2 with Addition of B4C Nanoparticlescitations
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article
Microstructure and Thermoelectric Properties of Doped FeSi2 with Addition of B4C Nanoparticles
Abstract
β-FeSi2 with the addition of B4C nanoparticles was manufactured by sintering mechanically alloyed Fe and Si powders with Mn, Co, Al, P as p and n-type dopants. The consolidated samples were subsequently annealed at 1123 K for 36 ks. XRD analysis of sinters after annealing confirmed nearly full transformation from α and ε into thermoelectric β-FeSi2 phase. SEM observations of samples surface were compliant with the diffraction curves. TEM observations allowed to depict evenly distributed B4C nanoparticlesthorough material, with no visible aggregates and establish grain size parameter d2 < 500 nm. All dopants contributedto lower thermal conductivity and Seebeck coefficient, with Co having strongest influence on increasing electrical conductivity in relation to reference FeSi2. Combination of the addition of Co as dopant and B4C nanoparticles as phonon scatterer resulted in dimensionless figure of merit ZT reaching 7.6 × 10–2 at 773 K for Fe0.97Co0.03Si2 compound.Comparison of the thermoelectric properties of examined sinters to the previously manufactured of the same stoichiometry but without B4C nanoparticles revealed theirs overall negative influence.