000075417 001__ 75417 000075417 005__ 20240104111806.0 000075417 0247_ $$2doi$$a10.1080/17436753.2017.1386409 000075417 0248_ $$2sideral$$a104544 000075417 037__ $$aART-2018-104544 000075417 041__ $$aeng 000075417 100__ $$0(orcid)0000-0002-0794-3998$$aMadre, M.A.$$uUniversidad de Zaragoza 000075417 245__ $$aImproving bulk Ca3Co4O9 thermoelectric materials through Zr doping 000075417 260__ $$c2018 000075417 5060_ $$aAccess copy available to the general public$$fUnrestricted 000075417 5203_ $$aCa3Co4-xZrxOy polycrystalline ceramics with small Zr substitution have been prepared through the classical solid-state method. X-ray diffraction data have shown that all samples are composed only of Ca3Co4O9 and Ca3Co2O6 phases. Moreover, by increasing Zr substitution up to 0.07, Ca3Co2O6 phase content is decreased. Density measurements have revealed that all samples are very similar, with values around 74% of the theoretical density. Electrical resistivity is decreased in Zr-doped samples, with respect to the pure samples, while Seebeck coefficient is unchanged. Both factors lead to power factor values around 0.33 mW K-2 m-1 at 800°C in 0.07 Zr-doped samples, which are about 65% higher than those obtained for the undoped samples. 000075417 536__ $$9info:eu-repo/grantAgreement/ES/DGA/T12$$9info:eu-repo/grantAgreement/ES/DGA/T87$$9info:eu-repo/grantAgreement/ES/MINECO/MAT2013-46505-C3-1-R 000075417 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/ 000075417 590__ $$a1.429$$b2018 000075417 591__ $$aMATERIALS SCIENCE, CERAMICS$$b11 / 28 = 0.393$$c2018$$dQ2$$eT2 000075417 592__ $$a0.367$$b2018 000075417 593__ $$aIndustrial and Manufacturing Engineering$$c2018$$dQ2 000075417 593__ $$aCeramics and Composites$$c2018$$dQ2 000075417 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion 000075417 700__ $$0(orcid)0000-0003-3466-9952$$aRasekh, S. 000075417 700__ $$0(orcid)0000-0003-3995-5763$$aTorres, M.A.$$uUniversidad de Zaragoza 000075417 700__ $$aDiez, J.C. 000075417 700__ $$0(orcid)0000-0001-7056-0546$$aSotelo, A.$$uUniversidad de Zaragoza 000075417 7102_ $$15002$$2305$$aUniversidad de Zaragoza$$bDpto. Ingeniería Diseño Fabri.$$cÁrea Expresión Gráfica en Ing. 000075417 7102_ $$15001$$2065$$aUniversidad de Zaragoza$$bDpto. Ciencia Tecnol.Mater.Fl.$$cÁrea Cienc.Mater. Ingen.Metal. 000075417 773__ $$g117, 3 (2018), 142-146$$pAdv. Appl. Ceram.$$tAdvances in Applied Ceramics$$x1743-6753 000075417 8564_ $$s429021$$uhttps://zaguan.unizar.es/record/75417/files/texto_completo.pdf$$yPostprint 000075417 8564_ $$s60028$$uhttps://zaguan.unizar.es/record/75417/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint 000075417 909CO $$ooai:zaguan.unizar.es:75417$$particulos$$pdriver 000075417 951__ $$a2024-01-04-11:00:34 000075417 980__ $$aARTICLE