75602 20190709135457.0 doi 10.1016/j.ijhydene.2016.12.112 sideral 99004 ART-2017-99004 eng (orcid)0000-0002-1629-6083 Cebollero, J.A. Characterization of laser-processed thin ceramic membranes for electrolyte-supported solid oxide fuel cells 2017 Access copy available to the general public Unrestricted By laser machining we have prepared thin and self-supported yttria stabilized zirconia (YSZ) electrolytes that can be used in electrolyte-supported solid oxide fuel cells for reducing the operation temperature. The membranes, which are supported by thicker areas of the same material, have an active area of ~20 µm in thickness and up to 8 mm in diameter. Buckling limits the maximum size of the thin areas to below 1 mm, the overall effective active area being formed by multiple thin areas bounded by ribs. Electron Backscattering Diffraction experiments determined that there are not significant strains inside the membranes and that the heat-affected zone is confined to a shallow layer of ~1–2 µm. The bending strength of the membranes decreases by ~26% as a result of the surface microcracking produced by the laser machining. The membranes have a roughness of ~2.5 µm and are coated by a layer of nanoparticles produced by the laser ablation. This coating and small roughness is not detrimental for the cathodic polarization of the cells. Conversely, the cathode polarization resistance decreases ~5% in the 650–850 °C temperature range. info:eu-repo/grantAgreement/ES/MINECO/MAT2015-68078-R info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 4.229 2017 CHEMISTRY, PHYSICAL 42 / 146 = 0.288 2017 Q2 T1 ENERGY & FUELS 24 / 97 = 0.247 2017 Q1 T1 ELECTROCHEMISTRY 8 / 28 = 0.286 2017 Q2 T1 1.116 2017 Condensed Matter Physics 2017 Q1 Energy Engineering and Power Technology 2017 Q1 Fuel Technology 2017 Q1 Renewable Energy, Sustainability and the Environment 2017 Q2 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion (orcid)0000-0003-4708-5577 Lahoz, R. Universidad de Zaragoza (orcid)0000-0002-7819-8956 Laguna-Bercero, M.A. Universidad de Zaragoza (orcid)0000-0003-2242-6822 Peña, J.I. Universidad de Zaragoza (orcid)0000-0002-0809-641X Larrea, A. Universidad de Zaragoza (orcid)0000-0001-9690-9064 Orera, V.M. Universidad de Zaragoza 5001 065 Universidad de Zaragoza Dpto. Ciencia Tecnol.Mater.Fl. Área Cienc.Mater. Ingen.Metal. 2003 395 Universidad de Zaragoza Dpto. Física Materia Condensa. Área Física Materia Condensada 42, 19 (2017), 13939-13948 Int. j. hydrogen energy International Journal of Hydrogen Energy 0360-3199 407124 http://zaguan.unizar.es/record/75602/files/texto_completo.pdf Postprint 96147 http://zaguan.unizar.es/record/75602/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:75602 articulos driver 2019-07-09-11:44:15 ARTICLE