000124070 001__ 124070
000124070 005__ 20241125101131.0
000124070 0247_ $$2doi$$a10.1007/s10854-022-09416-x
000124070 0248_ $$2sideral$$a132539
000124070 037__ $$aART-2023-132539
000124070 041__ $$aeng
000124070 100__ $$0(orcid)0000-0003-2212-447X$$aAmaveda, H.$$uUniversidad de Zaragoza
000124070 245__ $$aAnomalous grain growth in sintered Bi2Ca2Co2-xCuxOy + Ag ceramic composites by Cu doping
000124070 260__ $$c2023
000124070 5060_ $$aAccess copy available to the general public$$fUnrestricted
000124070 5203_ $$aBi2Ca2Co2 − xCuxOy + 4 wt%Ag (with x between 0 and 0.20) thermoelectric materials were prepared through a sol-gel method via nitrates. Powder XRD patterns showed the presence of thermoelectric phase as the major one, accompanied by metallic silver. SEM observations identified three different secondary phases in the samples, together with an exaggerated grain growth with Cu doping. The microstructural modifications are reflected in an important decrease of electrical resistivity, ∼ 3% when compared to undoped samples, due to the reduction on the number of grain boundaries, and the increase of Co4+ in the conducting layer. The minimum values at 650 ºC were obtained in 0.10 Cu-doped samples, 69 mΩ cm, which are lower than the reported in sintered samples. On the other hand, Seebeck coefficient was only slightly affected and reached the highest values at 650 ºC in 0.15 Cu-doped samples, 215 µV/K, which is practically the same measured in undoped ones, 211 µV/K, and lower than those reported for sintered samples. Consequently, the highest PF at 650 ºC has been determined in 0.10 Cu-doped samples, which is around 50% higher than the obtained in samples prepared through the classical solid-state method, or the undoped ones prepared in this work.
000124070 536__ $$9info:eu-repo/grantAgreement/ES/DGA-FEDER/T54-20R$$9info:eu-repo/grantAgreement/ES/MINECO-FEDER/MAT2017-82183-C3-1-R
000124070 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000124070 590__ $$a2.8$$b2023
000124070 592__ $$a0.512$$b2023
000124070 591__ $$aENGINEERING, ELECTRICAL & ELECTRONIC$$b151 / 353 = 0.428$$c2023$$dQ2$$eT2
000124070 591__ $$aPHYSICS, CONDENSED MATTER$$b37 / 79 = 0.468$$c2023$$dQ2$$eT2
000124070 591__ $$aPHYSICS, APPLIED$$b74 / 179 = 0.413$$c2023$$dQ2$$eT2
000124070 591__ $$aMATERIALS SCIENCE, MULTIDISCIPLINARY$$b230 / 439 = 0.524$$c2023$$dQ3$$eT2
000124070 593__ $$aElectronic, Optical and Magnetic Materials$$c2023$$dQ2
000124070 593__ $$aElectrical and Electronic Engineering$$c2023$$dQ2
000124070 593__ $$aAtomic and Molecular Physics, and Optics$$c2023$$dQ2
000124070 593__ $$aCondensed Matter Physics$$c2023$$dQ2
000124070 593__ $$aBiophysics$$c2023$$dQ3
000124070 593__ $$aBiomaterials$$c2023$$dQ3
000124070 593__ $$aBioengineering$$c2023$$dQ3
000124070 593__ $$aBiomedical Engineering$$c2023$$dQ3
000124070 594__ $$a5.0$$b2023
000124070 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000124070 700__ $$0(orcid)0000-0002-0794-3998$$aMadre, M. A.$$uUniversidad de Zaragoza
000124070 700__ $$0(orcid)0000-0003-4747-7327$$aMora, M.$$uUniversidad de Zaragoza
000124070 700__ $$0(orcid)0000-0003-3995-5763$$aTorres, M. A.$$uUniversidad de Zaragoza
000124070 700__ $$0(orcid)0000-0001-7056-0546$$aSotelo, A.$$uUniversidad de Zaragoza
000124070 7102_ $$15002$$2305$$aUniversidad de Zaragoza$$bDpto. Ingeniería Diseño Fabri.$$cÁrea Expresión Gráfica en Ing.
000124070 7102_ $$15001$$2065$$aUniversidad de Zaragoza$$bDpto. Ciencia Tecnol.Mater.Fl.$$cÁrea Cienc.Mater. Ingen.Metal.
000124070 773__ $$g34, 1 (2023), 9 [8 pp.]$$pJ. mater. sci., Mater. electron.$$tJournal of Materials Science: Materials in Electronics$$x0957-4522
000124070 8564_ $$s1728081$$uhttps://zaguan.unizar.es/record/124070/files/texto_completo.pdf$$yVersión publicada
000124070 8564_ $$s2134173$$uhttps://zaguan.unizar.es/record/124070/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000124070 909CO $$ooai:zaguan.unizar.es:124070$$particulos$$pdriver
000124070 951__ $$a2024-11-22-11:59:08
000124070 980__ $$aARTICLE