000168056 001__ 168056
000168056 005__ 20260126155509.0
000168056 0247_ $$2doi$$a10.1007/s10854-014-2469-y
000168056 0248_ $$2sideral$$a109166
000168056 037__ $$aART-2015-109166
000168056 041__ $$aeng
000168056 100__ $$0(orcid)0000-0003-3995-5763$$aTorres, M.A.$$uUniversidad de Zaragoza
000168056 245__ $$aDecrease of electrical resistivity in Ca3Co4O9 thermoelectric ceramics by Ti doping
000168056 260__ $$c2015
000168056 5060_ $$aAccess copy available to the general public$$fUnrestricted
000168056 5203_ $$aCa3Co4−xTixO9 polycrystalline thermoelectric ceramics with small amounts of Ti have been prepared by the classical solid state method. X-ray diffraction data have shown that Ca3Co4O9 is the major phase, with small amounts of the Ca3Co2O6 one. Moreover, they show that Ti has been incorporated into these two phases. Electrical resistivity decreases, compared with the values for undoped samples, until 0.03-Ti doped ones. Further Ti addition produces an increase of resistivity with respect to the 0.03 Ti doped samples. Seebeck coefficient does not appreciably change in all the measured temperature range, independently of Ti content. The improvement in electrical resistivity leads to about 55 % higher power factor values for the 0.03 Ti-doped samples than that obtained in the undoped ones. The maximum power factor at 800 °C, around 0.33 mW/K2 m, is slightly higher than the obtained in higher density samples, clearly indicating the good thermoelectric performances of these doped samples.
000168056 536__ $$9info:eu-repo/grantAgreement/ES/DGA/T12$$9info:eu-repo/grantAgreement/ES/DGA/T87$$9info:eu-repo/grantAgreement/ES/MINECO-FEDER/MAT2013-46505-C3-1-R
000168056 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000168056 590__ $$a1.798$$b2015
000168056 591__ $$aENGINEERING, ELECTRICAL & ELECTRONIC$$b87 / 255 = 0.341$$c2015$$dQ2$$eT2
000168056 591__ $$aMATERIALS SCIENCE, MULTIDISCIPLINARY$$b116 / 270 = 0.43$$c2015$$dQ2$$eT2
000168056 591__ $$aPHYSICS, APPLIED$$b60 / 144 = 0.417$$c2015$$dQ2$$eT2
000168056 591__ $$aPHYSICS, CONDENSED MATTER$$b36 / 67 = 0.537$$c2015$$dQ3$$eT2
000168056 592__ $$a0.465$$b2015
000168056 593__ $$aAtomic and Molecular Physics, and Optics$$c2015$$dQ2
000168056 593__ $$aBiomedical Engineering$$c2015$$dQ2
000168056 593__ $$aElectrical and Electronic Engineering$$c2015$$dQ2
000168056 593__ $$aElectronic, Optical and Magnetic Materials$$c2015$$dQ2
000168056 593__ $$aBiophysics$$c2015$$dQ3
000168056 593__ $$aCondensed Matter Physics$$c2015$$dQ3
000168056 593__ $$aBiomaterials$$c2015$$dQ3
000168056 593__ $$aBioengineering$$c2015$$dQ3
000168056 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000168056 700__ $$0(orcid)0000-0003-3466-9952$$aRasekh, Sh.
000168056 700__ $$0(orcid)0000-0003-2501-4479$$aBosque, P.
000168056 700__ $$0(orcid)0000-0002-1614-1962$$aConstantinescu, G.
000168056 700__ $$0(orcid)0000-0002-0794-3998$$aMadre, M.A.$$uUniversidad de Zaragoza
000168056 700__ $$0(orcid)0000-0001-9995-6368$$aDiez, J.C.$$uUniversidad de Zaragoza
000168056 700__ $$0(orcid)0000-0001-7056-0546$$aSotelo, A.$$uUniversidad de Zaragoza
000168056 7102_ $$15002$$2305$$aUniversidad de Zaragoza$$bDpto. Ingeniería Diseño Fabri.$$cÁrea Expresión Gráfica en Ing.
000168056 7102_ $$15001$$2065$$aUniversidad de Zaragoza$$bDpto. Ciencia Tecnol.Mater.Fl.$$cÁrea Cienc.Mater. Ingen.Metal.
000168056 773__ $$g26, 2 (2015), 815-820$$pJ. mater. sci., Mater. electron.$$tJournal of Materials Science: Materials in Electronics$$x0957-4522
000168056 8564_ $$s1134732$$uhttps://zaguan.unizar.es/record/168056/files/texto_completo.pdf$$yPostprint
000168056 8564_ $$s1166001$$uhttps://zaguan.unizar.es/record/168056/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000168056 909CO $$ooai:zaguan.unizar.es:168056$$particulos$$pdriver
000168056 951__ $$a2026-01-26-14:49:21
000168056 980__ $$aARTICLE