168066 20260127151101.0 doi 10.1016/j.matdes.2015.03.005 sideral 89796 ART-2015-89796 eng Rasekh, S. (orcid)0000-0003-3466-9952 Use of laser technology to produce high thermoelectric performances in Bi2Sr2Co1.8Ox 2015 Access copy available to the general public Unrestricted Bi2Sr2Co1.8Ox bulk polycrystalline ceramics were prepared by conventional sintering of powders, obtained by polymer solution method and by directional growth using the laser floating zone technique. Microstructural analysis showed randomly oriented grains in the classical sintered materials, while in the laser-textured samples well oriented crystals with the c-axis nearly perpendicular to the growth direction were observed. A significant reduction on electrical resistivity, compared with the sintered materials, was observed due to the decrease on the secondary phases content. As a consequence, a raise on the power factor of about 2 and 5 times, compared with the classically sintered samples, was obtained for the as-grown and annealed laser-textured samples, respectively. The maximum power factor obtained at 650 °C in the annealed laser-textured samples (∼0.20 mW/K2 m) is much higher than the best value obtained in sinter–forged textured materials at the same temperature. info:eu-repo/grantAgreement/ES/DGA/T12 info:eu-repo/grantAgreement/ES/DGA/T87 info:eu-repo/grantAgreement/ES/MINECO-FEDER/MAT2013-46505-C3-1-R info:eu-repo/semantics/openAccess by-nc-nd https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es 3.997 2015 MATERIALS SCIENCE, MULTIDISCIPLINARY 44 / 270 = 0.163 2015 Q1 T1 1.844 2015 Materials Science (miscellaneous) 2015 Q1 Mechanics of Materials 2015 Q1 Mechanical Engineering 2015 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Costa, F.M. Ferreira, N.M. 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 Sotelo, A. Universidad de Zaragoza (orcid)0000-0001-7056-0546 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. 75 (2015), 143-148 Mater. des. Materials & design 0264-1275 1748387 http://zaguan.unizar.es/record/168066/files/texto_completo.pdf Postprint 1324660 http://zaguan.unizar.es/record/168066/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:168066 articulos driver 2026-01-27-15:07:25 ARTICLE