dc.date.accessioned | 2020-05-13T18:17:13Z | |
dc.date.available | 2021-09-13T22:45:42Z | |
dc.date.created | 2019-10-08T13:39:04Z | |
dc.date.issued | 2020 | |
dc.identifier.citation | Singh, Sathya Prakash Kanas, Nikola Desissa, Temesgen Debelo Johnsson, Mats Einarsrud, Mari-Ann Norby, Truls Eivind Wiik, Kjell . Thermoelectric properties of A-site deficient La-doped SrTiO3 at 100–900 °C under reducing conditions. Journal of the European Ceramic Society. 2019, 1-7 | |
dc.identifier.uri | http://hdl.handle.net/10852/75534 | |
dc.description.abstract | Lanthanum doped strontium titanate is a potential n-type thermoelectric material at moderate and high temperatures. (La0.12Sr0.88)0.95TiO3 ceramics were prepared by two different routes, conventional sintering at 1500 °C and spark plasma sintering at temperatures between 925 and 1200 °C. Samples with grain size between 40 nm and 1.4 μm were prepared and characterized with respect to their thermoelectric transport properties at temperatures between 100 and 900 °C under reducing conditions (H2/H2O-buffer mixtures). The thermal conductivity was significantly reduced with decreasing grain size reaching a value of 1.3 W m−1. K−1 at 600 °C for grain size of 40 nm and porosity of 19%. Electrical conductivity increased with increasing grain size showing a maximum of 500 S cm−1 at 200 °C for a grain size of 1.4 μm. The highest figure-of-merit (zT) was measured for samples with 1.4 μm average grain size reaching 0.2 at 500 °C. | en_US |
dc.language | EN | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 International | |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | |
dc.title | Thermoelectric properties of A-site deficient La-doped SrTiO3 at 100–900 °C under reducing conditions | en_US |
dc.type | Journal article | en_US |
dc.creator.author | Singh, Sathya Prakash | |
dc.creator.author | Kanas, Nikola | |
dc.creator.author | Desissa, Temesgen Debelo | |
dc.creator.author | Johnsson, Mats | |
dc.creator.author | Einarsrud, Mari-Ann | |
dc.creator.author | Norby, Truls Eivind | |
dc.creator.author | Wiik, Kjell | |
cristin.unitcode | 185,15,17,0 | |
cristin.unitname | Senter for materialvitenskap og nanoteknologi | |
cristin.ispublished | true | |
cristin.fulltext | postprint | |
cristin.qualitycode | 1 | |
dc.identifier.cristin | 1734946 | |
dc.identifier.bibliographiccitation | info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal of the European Ceramic Society&rft.volume=&rft.spage=1&rft.date=2019 | |
dc.identifier.jtitle | Journal of the European Ceramic Society | |
dc.identifier.volume | 40 | |
dc.identifier.issue | 2 | |
dc.identifier.startpage | 401 | |
dc.identifier.endpage | 407 | |
dc.identifier.doi | https://doi.org/10.1016/j.jeurceramsoc.2019.09.024 | |
dc.identifier.urn | URN:NBN:no-78649 | |
dc.type.document | Tidsskriftartikkel | en_US |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 0955-2219 | |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/75534/1/Paper%2B1-Cristin.pdf | |
dc.type.version | AcceptedVersion | |