000145196 001__ 145196
000145196 005__ 20241220120718.0
000145196 0247_ $$2doi$$a10.1016/j.ceramint.2024.09.030
000145196 0248_ $$2sideral$$a139968
000145196 037__ $$aART-2024-139968
000145196 041__ $$aeng
000145196 100__ $$aAmirkhizi, P.
000145196 245__ $$aFabrication and thermoelectric properties of multilayer textured Sr-doped Ca3Co4O9/Ag laminar composites
000145196 260__ $$c2024
000145196 5060_ $$aAccess copy available to the general public$$fUnrestricted
000145196 5203_ $$aThis work presents a comparative analysis of pure and Ag-intercalated Ca3Co4O9 multilayer thermoelectric materials prepared through the hot-uniaxial pressing technique. Samples were prepared by attrition milling and hot-pressed at 900 °C and 55 MPa for 1 h. They were mirror polished, and some of them were stacked with and without intermediate Ag foil and hot-pressed again at 900 °C and 52 MPa for 1 h. Out-of-plane XRD showed that samples are nearly single-phase, and the grains are well oriented with their ab-plane perpendicular to the pressure direction. Microstructural studies confirmed perfect welding in the multilayer samples accompanied by the formation of a very thin layer containing larger grains and notable Ag diffusion close to the Ca3Co4O9/Ag interface. Three-point bending stresses have been increased in Ag-containing samples, while microhardness has been raised in all samples hot-pressed twice. Thermoelectric measurements showed a decrease of thermal gradient along the Ag-containing sample, together with a drastic decrease of electrical resistivity when compared to the Ag-free ones. However, the Ag-layers have promoted a drastic decrease in the Seebeck coefficient, reflected in a notable reduction of the power factor of Ca3Co4O9/Ag multilayer composites. Nevertheless, these results show that it is possible to use these materials to reduce Joule heating and increasing the compatibility with the welding compounds when building thermoelectric modules. Moreover, they open a new research line searching for larger S compounds to be intercalated with Ag foils.
000145196 536__ $$9info:eu-repo/grantAgreement/ES/DGA/T54-23R$$9info:eu-repo/grantAgreement/ES/UZ/UZ2022-IAR-09
000145196 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000145196 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000145196 700__ $$0(orcid)0000-0002-0794-3998$$aMadre, M.A.$$uUniversidad de Zaragoza
000145196 700__ $$aWang, H.C.
000145196 700__ $$aLi, Z.H.
000145196 700__ $$0(orcid)0000-0003-3995-5763$$aTorres, M.A.$$uUniversidad de Zaragoza
000145196 700__ $$0(orcid)0000-0001-7056-0546$$aSotelo, A.$$uUniversidad de Zaragoza
000145196 700__ $$aHedayati, M.
000145196 700__ $$aKovalevsky, A.V.
000145196 700__ $$aRasekh, Sh.
000145196 7102_ $$15002$$2305$$aUniversidad de Zaragoza$$bDpto. Ingeniería Diseño Fabri.$$cÁrea Expresión Gráfica en Ing.
000145196 7102_ $$15001$$2065$$aUniversidad de Zaragoza$$bDpto. Ciencia Tecnol.Mater.Fl.$$cÁrea Cienc.Mater. Ingen.Metal.
000145196 773__ $$g50, 22 part. B (2024), 46784-46790$$pCeram. int.$$tCeramics International$$x0272-8842
000145196 8564_ $$s3648934$$uhttps://zaguan.unizar.es/record/145196/files/texto_completo.pdf$$yVersión publicada
000145196 8564_ $$s2529407$$uhttps://zaguan.unizar.es/record/145196/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000145196 909CO $$ooai:zaguan.unizar.es:145196$$particulos$$pdriver
000145196 951__ $$a2024-12-20-12:05:36
000145196 980__ $$aARTICLE