dc.date.accessioned | 2021-01-31T20:11:29Z | |
dc.date.available | 2021-11-09T23:45:47Z | |
dc.date.created | 2020-01-17T13:25:38Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | Singh, Sathya Prakash Kanas, Nikola Desissa, Temesgen Debelo Einarsrud, Mari-Ann Norby, Truls Eivind Wiik, Kjell . Thermoelectric properties of non-stoichiometric CaMnO3-d composites formed by redox-activated exsolution.. Journal of the European Ceramic Society. 2019, 40(4), 1344-1351 | |
dc.identifier.uri | http://hdl.handle.net/10852/82779 | |
dc.description.abstract | A novel synthesis route for preparing well-defined composites based on CMO (CaMnO3) has been established taking advantage of the unique phase relations in the system Ca-Mn-O at reducing- and oxidizing atmosphere, respectively. Samples corresponding to stoichiometric CMO and composites with 5 and 10 vol % of Ruddlesden-Popper (Ca4Mn3O10)- and spinel (CaMn2O4)-phases, respectively, were prepared with final densities >91 %. The presence of secondary phases significantly enhanced the electrical conductivity compared to stoichiometric CMO. The highest electrical conductivity was observed for CMO with 10 vol % spinel varying between 55 and 75 S/cm at temperatures between 100 and 900 °C. This composition also exhibited the highest figure-of-merit (zT) in this study, reaching 0.083 at 800 °C. | |
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 non-stoichiometric CaMnO3-d composites formed by redox-activated exsolution. | |
dc.type | Journal article | |
dc.creator.author | Singh, Sathya Prakash | |
dc.creator.author | Kanas, Nikola | |
dc.creator.author | Desissa, Temesgen Debelo | |
dc.creator.author | Einarsrud, Mari-Ann | |
dc.creator.author | Norby, Truls Eivind | |
dc.creator.author | Wiik, Kjell | |
cristin.unitcode | 185,15,12,0 | |
cristin.unitname | Kjemisk institutt | |
cristin.ispublished | true | |
cristin.fulltext | postprint | |
cristin.fulltext | postprint | |
cristin.qualitycode | 1 | |
dc.identifier.cristin | 1775843 | |
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=40&rft.spage=1344&rft.date=2019 | |
dc.identifier.jtitle | Journal of the European Ceramic Society | |
dc.identifier.volume | 40 | |
dc.identifier.issue | 4 | |
dc.identifier.startpage | 1344 | |
dc.identifier.endpage | 1351 | |
dc.identifier.doi | https://doi.org/10.1016/j.jeurceramsoc.2019.11.027 | |
dc.identifier.urn | URN:NBN:no-85601 | |
dc.type.document | Tidsskriftartikkel | |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 0955-2219 | |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/82779/2/Paper%2B2-Cristin.pdf | |
dc.type.version | AcceptedVersion | |