000168162 001__ 168162 000168162 005__ 20260127160850.0 000168162 0248_ $$2sideral$$a146872 000168162 037__ $$aART-2014-146872 000168162 041__ $$amul 000168162 100__ $$0(orcid)0000-0002-1614-1962$$aConstantinescu, G. 000168162 245__ $$aInfluence of Ca substitution by Mg on the Ca3Co 4O9 performances 000168162 260__ $$c2014 000168162 5060_ $$aAccess copy available to the general public$$fUnrestricted 000168162 5203_ $$aCa3-x Mgx Co4 O 9 polycrystalline thermoelectric ceramics with small amounts of Mg have been synthesized by the classical solid state method. Microstructural characterizations have shown that all the Mg has been incorporated into the Ca 3 Co4 O 9 structure and no Mg-based secondary phases have been identified. Apparent density measurements have shown that samples do not modify their density until 0.05 Mg content, decreasing for higher contents. Electrical resistivity decreases and Seebeck coefficient slightly raises when Mg content increases until 0.05 Mg addition. The improvement in both parameters leads to higher power factor values than the usually obtained in samples prepared by the conventional solid state routes and close to those obtained in textured materials. 000168162 536__ $$9info:eu-repo/grantAgreement/ES/DGA/T12$$9info:eu-repo/grantAgreement/ES/DGA/T87 000168162 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es 000168162 590__ $$a0.29$$b2014 000168162 591__ $$aMATERIALS SCIENCE, CERAMICS$$b22 / 26 = 0.846$$c2014$$dQ4$$eT3 000168162 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000168162 700__ $$0(orcid)0000-0003-3466-9952$$aRasekh, S.H. 000168162 700__ $$0(orcid)0000-0003-3995-5763$$aTorres, M.A.$$uUniversidad de Zaragoza 000168162 700__ $$aChocarro, C. 000168162 700__ $$0(orcid)0000-0001-9995-6368$$aDíez, J.C.$$uUniversidad de Zaragoza 000168162 700__ $$0(orcid)0000-0002-0794-3998$$aMadre, M.A.$$uUniversidad de Zaragoza 000168162 700__ $$0(orcid)0000-0001-7056-0546$$aSotelo, A.$$uUniversidad de Zaragoza 000168162 7102_ $$15002$$2305$$aUniversidad de Zaragoza$$bDpto. Ingeniería Diseño Fabri.$$cÁrea Expresión Gráfica en Ing. 000168162 7102_ $$15001$$2065$$aUniversidad de Zaragoza$$bDpto. Ciencia Tecnol.Mater.Fl.$$cÁrea Cienc.Mater. Ingen.Metal. 000168162 773__ $$g53, 1 (2014), 41-47$$pBol. Soc. Esp. Ceram. Vidr.$$tBoletin de la Sociedad Espanola de Ceramica y Vidrio$$x0366-3175 000168162 8564_ $$s1554456$$uhttps://zaguan.unizar.es/record/168162/files/texto_completo.pdf$$yVersión publicada 000168162 8564_ $$s3033183$$uhttps://zaguan.unizar.es/record/168162/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000168162 909CO $$ooai:zaguan.unizar.es:168162$$particulos$$pdriver 000168162 951__ $$a2026-01-27-15:01:37 000168162 980__ $$aARTICLE