56778 20260127151100.0 doi 10.1016/j.actamat.2015.09.036 sideral 92269 ART-2016-92269 eng Flahaut, D. Role of Ag in textured-annealed Bi2Ca2Co1.7Ox thermoelectric ceramic 2016 Access copy available to the general public Unrestricted Bi2Ca2Co1.7Ox thermoelectric ceramics with small Ag additions (0, 1, 2, 3, 4, and 5 wt.%) have been successfully grown from the melt, using the laser floating zone method and subsequently annealed at 800 °C for 24 h. The microstructure has shown a reduction of the amount of secondary phases for Ag contents up to 4 wt.%. This microstructural evolution leads to a decrease of the electrical resistivity values until an Ag content of 4 wt.%, whereas Seebeck coefficient has been maintained unchanged. This is in agreement with the presence of metallic Ag in all samples, confirmed not only by Energy Dispersive Spectrometry but also by X-ray photoelectron and Auger spectroscopy. These electrical properties lead to maximum power factor values of about 0.30 mW/K2.m at 650 °C for the 4 wt.% Ag containing samples, which is among the best results obtained for this type of materials. info:eu-repo/grantAgreement/ES/MINECO/MAT2013-46505-C3-1-R info:eu-repo/semantics/openAccess by-nc-nd https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es 5.301 2016 METALLURGY & METALLURGICAL ENGINEERING 1 / 74 = 0.014 2016 Q1 T1 MATERIALS SCIENCE, MULTIDISCIPLINARY 35 / 273 = 0.128 2016 Q1 T1 3.21 2016 Ceramics and Composites 2016 Q1 Polymers and Plastics 2016 Q1 Metals and Alloys 2016 Q1 Electronic, Optical and Magnetic Materials 2016 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Allouche, J. Sotelo, A. Universidad de Zaragoza (orcid)0000-0001-7056-0546 Rasekh, Sh. (orcid)0000-0003-3466-9952 Torres, M.A. Universidad de Zaragoza (orcid)0000-0003-3995-5763 Madre, M.A. Universidad de Zaragoza (orcid)0000-0002-0794-3998 Diez, J.C. Universidad de Zaragoza (orcid)0000-0001-9995-6368 5002 305 Universidad de Zaragoza Dpto. Ingeniería Diseño Fabri. Área Expresión Gráfica en Ing. 5001 065 Universidad de Zaragoza Dpto. Ciencia Tecnol.Mater.Fl. Área Cienc.Mater. Ingen.Metal. 102 (2016), 273-283 Acta mater. Acta Materialia 1359-6454 1571593 http://zaguan.unizar.es/record/56778/files/texto_completo.pdf Postprint 38631 http://zaguan.unizar.es/record/56778/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:56778 articulos driver 2026-01-27-15:07:19 ARTICLE