dc.contributor.author | Ioannou, M. | en |
dc.contributor.author | Polymeris, G. S. | en |
dc.contributor.author | Hatzikraniotis, E. | en |
dc.contributor.author | Paraskevopoulos, K. M. | en |
dc.contributor.author | Kyratsi, Theodora | en |
dc.creator | Ioannou, M. | en |
dc.creator | Polymeris, G. S. | en |
dc.creator | Hatzikraniotis, E. | en |
dc.creator | Paraskevopoulos, K. M. | en |
dc.creator | Kyratsi, Theodora | en |
dc.date.accessioned | 2019-05-06T12:23:44Z | |
dc.date.available | 2019-05-06T12:23:44Z | |
dc.date.issued | 2014 | |
dc.identifier.uri | http://gnosis.library.ucy.ac.cy/handle/7/48428 | |
dc.description.abstract | In this work, Bi-doped magnesium silicide compounds were prepared by applying a combination of both, short-time ball milling and heating treatment. The effect of Mg excess was also studied, aiming towards further improvement in thermoelectric properties. The structural modifications of all materials were followed by Powder X-ray diffraction and Scanning Electron Microscopy. Highly dense pellets of Mg2Si1-xBix (0≤x≤0.035) and Mg2+δSi0.975Bi0.025 (δ=0.04, 0.06 and 0.12) were fabricated via hot pressing and studied in terms of Seebeck coefficient, electrical and thermal conductivities and free carrier concentration. Their thermoelectric performance, at high temperature range, is presented and the maximum value of the dimensionless-figure-of-merit (ZT) is found to be 0.68 at 810 K, for Mg2Si0.97Bi0.03. © 2014 Elsevier Ltd. All rights reserved. | en |
dc.language.iso | eng | en |
dc.source | Journal of Physics and Chemistry of Solids | en |
dc.subject | Thermal conductivity | en |
dc.subject | Thermoelectricity | en |
dc.subject | X ray diffraction | en |
dc.subject | Ball milling | en |
dc.subject | Silicon | en |
dc.subject | Scanning electron microscopy | en |
dc.subject | Bismuth compounds | en |
dc.subject | Thermoelectric properties | en |
dc.subject | Thermoelectric equipment | en |
dc.subject | Magnesium silicides | en |
dc.subject | Powder X ray diffraction | en |
dc.subject | Silicides | en |
dc.subject | Free carrier concentration | en |
dc.subject | High temperature range | en |
dc.subject | Hot pressing | en |
dc.subject | Structural modifications | en |
dc.subject | Thermoelectric performance | en |
dc.subject | A. Intermetallic compounds | en |
dc.subject | D. Thermal conductivity | en |
dc.subject | D. Transport properties | en |
dc.subject | Heating treatments | en |
dc.title | Effect of Bi-doping and Mg-excess on the thermoelectric properties of Mg2Si materials | en |
dc.type | info:eu-repo/semantics/article | |
dc.identifier.doi | 10.1016/j.jpcs.2014.04.008 | |
dc.description.volume | 75 | |
dc.description.startingpage | 984 | |
dc.description.endingpage | 991 | |
dc.author.faculty | Πολυτεχνική Σχολή / Faculty of Engineering | |
dc.author.department | Τμήμα Μηχανικών Μηχανολογίας και Κατασκευαστικής / Department of Mechanical and Manufacturing Engineering | |
dc.type.uhtype | Article | en |
dc.contributor.orcid | Kyratsi, Theodora [0000-0003-2916-1708] | |
dc.description.totalnumpages | 984-991 | |
dc.gnosis.orcid | 0000-0003-2916-1708 | |