| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Kyratsi, Theodora
University of Cyprus
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2024Effect of Starting Powder Particle Size on the Thermoelectric Properties of Hot-Pressed Bi0.3Sb1.7Te3 Alloyscitations
- 2023Laser powder bed fusion of 316L stainless steel with 2 wt.% nanosized SiO2 additives: powder processing and consolidationcitations
- 2023Effects of process parameters and scan strategy on the microstructure and density of stainless steel 316 L produced via laser powder bed fusioncitations
- 2017Effect of silicon nitride/oxide on the structure and the thermal conductivity of CoSi nanocomposites
- 2017Thermal conductivity and degradation behavior of HDPE/graphene nanocomposites: Pyrolysis, kinetics and mechanismcitations
- 2016On the potential use of quarry waste material for CO2 sequestrationcitations
- 2015A method to enhance the CO2 storage capacity of pyroxenitic rockscitations
- 2014Thermoelectric properties of Mg2Si coatings deposited by pack cementation assisted process on heavily doped Si substratescitations
- 2014Carbon nanotube-reinforced crosslinked polyethylene pipes for geothermal applications: From synthesis to decomposition using analytical pyrolysis-GC/MS and thermogravimetric analysiscitations
- 2014Electronic Structure and Thermoelectric Properties of Pseudoquaternary Mg2Si1-x-ySnxGey-Based Materialscitations
- 2014Understanding the mechanical and thermal property reinforcement of crosslinked polyethylene by nanodiamonds and carbon nanotubescitations
- 2012Effect of sintering in ball-milled K 2Bi 8Se 13 thermoelectric nano-composites
- 2010Thermoelectric properties of nanocrystalline PbTe synthesized by mechanical alloyingcitations
- 2006Thermoelectric properties of pressed pellets and pressureless sintering in the K2Bi8Se13-xSx systemcitations
- 2006Thermoelectric properties of K 2Bi 8Se 13-xS x solid solutions
- 2006Structure inhomogeneities, shallow defects, and charge transport in the series of thermoelectric materials K2Bi8-xSb xSe13citations
- 2003Thermoelectric properties and site-selective Rb+/K+ distribution in the K2-xRbxBi8Se13 seriescitations
- 2001A2Bi8Se13 (A = Rb, Cs), CsBi3.67Se6, and BaBi2Se4: New ternary semiconducting bismuth selenidescitations
Places of action
| Organizations | Location | People |
|---|
article
Effect of Starting Powder Particle Size on the Thermoelectric Properties of Hot-Pressed Bi0.3Sb1.7Te3 Alloys
Abstract
<jats:p>P-type Bi0.3Sb1.7Te3 polycrystalline pellets were fabricated using different methods: melting and mechanical alloying, followed by hot-press sintering. The effect of starting powder particle size on the thermoelectric properties was investigated in samples prepared using powders of different particle sizes (with micro- and/or nano-scale dimensions). A peak ZT (350 K) of ~1.13 was recorded for hot-pressed samples prepared from mechanical alloyed powder. Moreover, hot-pressed samples prepared from ≤45 μm powder exhibited similar ZT (~1.1). These high ZT values are attributed both to the presence of high-density grain boundaries, which reduced the lattice thermal conductivity, as well as the formation of antisite defects during milling and grinding, which resulted in lower carrier concentrations and higher Seebeck coefficient values. In addition, Bi0.3Sb1.7Te3 bulk nanocomposites were fabricated in an attempt to further reduce the lattice thermal conductivity. Surprisingly, however, the lattice thermal conductivity showed an unexpected increasing trend in nanocomposite samples. This surprising observation can be attributed to a possible overestimation of the lattice thermal conductivity component by using the conventional Wiedemann–Franz law to estimate the electronic thermal conductivity component, which is known to occur in nanocomposite materials with significant grain boundary electrical resistance.</jats:p>