dc.contributor.author | Özçelik, Bekir | |
dc.contributor.author | Gürsul, Mehmet | |
dc.contributor.author | Çetin, Gizem | |
dc.contributor.author | Özçelik, Can | |
dc.contributor.author | Torres, M. A. | |
dc.contributor.author | Madre, María Antonieta | |
dc.contributor.author | Sotelo, Andrés E. | |
dc.date.accessioned | 2021-12-22T07:57:58Z | |
dc.date.available | 2021-12-22T07:57:58Z | |
dc.date.issued | 2021 | en_US |
dc.identifier.citation | Özçelik, B., Gürsul, M., Çetin, G., Özçelik, C., Torres, M.A., Madre, M.A., Sotelo, A. (2021). Detail investigation of thermoelectric performance and magnetic properties of Cs-doped Bi2Sr2Co2Oy ceramic materials. SN Applied Sciences, 3 (1), art. no. 114.
https://doi.org/10.1007/s42452-020-04066-2 | en_US |
dc.identifier.uri | https://doi.org/10.1007/s42452-020-04066-2 | |
dc.identifier.uri | https://hdl.handle.net/20.500.12508/1941 | |
dc.description.abstract | Bi2Sr2-xCsxCo2Oy materials with 0 <= x <= 0.15, have been fabricated via the classical ceramic technique. XRD results have indicated that undoped and Cs-substituted samples are composed of Bi2Sr2Co2Oy phase as the major one. Microstructural studies have demonstrated the formation of a liquid phase, which allows a drastic grain growth. This factor is responsible for a drastic improvement of relative density, reaching about 95% of the theoretical one for 0.125 Cs content. On the other hand, electrical resistivity has been reduced up to 14 m Omega cm at 650 degrees C for 0.125 Cs content, around 40% lower than the obtained in undoped samples. As a consequence, Seebeck coefficient has been decreased due to the raise in charge carrier concentration. The highest power factor at 650 degrees C (0.21 mW/K-2 m) has been found for 0.125 Cs substituted sample, about 40% larger than the obtained in undoped samples, and very similar to the notified in single crystals (0.26 mW/K-2 m). Magnetisation with respect to temperature results have demonstrated that measured samples have a paramagnetic property above 50 K, except 0.10 Cs. Magnetic hysteresis curves have shown that the slopes and the magnitudes have increased with decreasing temperature. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Springer | en_US |
dc.relation.isversionof | 10.1007/s42452-020-04066-2 | en_US |
dc.rights | info:eu-repo/semantics/openAccess | en_US |
dc.subject | Bi2Sr2Co2Oy | en_US |
dc.subject | Electrical properties | en_US |
dc.subject | Layered cobaltites | en_US |
dc.subject | Power factor | en_US |
dc.subject | Seebeck coefficient | en_US |
dc.subject.classification | Cobaltite | |
dc.subject.classification | Thermoelectric | |
dc.subject.classification | Nacoo2 | |
dc.subject.classification | Science & Technology - Other Topics | |
dc.subject.other | Bismuth compounds | |
dc.subject.other | Carrier concentration | |
dc.subject.other | Cesium | |
dc.subject.other | Cobalt compounds | |
dc.subject.other | Grain growth | |
dc.subject.other | Thermoelectricity | |
dc.subject.other | Ceramic techniques | |
dc.subject.other | Liquid Phase | |
dc.subject.other | Magnetic hysteresis curves | |
dc.subject.other | Micro-structural | |
dc.subject.other | Paramagnetic properties | |
dc.subject.other | Power factors | |
dc.subject.other | Relative density | |
dc.subject.other | Thermoelectric performance | |
dc.subject.other | Strontium compounds | |
dc.title | Detail investigation of thermoelectric performance and magnetic properties of Cs-doped Bi2Sr2Co2Oy ceramic materials | en_US |
dc.type | article | en_US |
dc.relation.journal | SN Applied Sciences | en_US |
dc.contributor.department | Mühendislik ve Doğa Bilimleri Fakültesi -- Metalurji ve Malzeme Mühendisliği Bölümü | en_US |
dc.identifier.volume | 3 | en_US |
dc.identifier.issue | 1 | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
dc.contributor.isteauthor | Özçelik, Can | |
dc.relation.index | Web of Science - Scopus | en_US |
dc.relation.index | Web of Science Core Collection - Emerging Sources Citation Index | |