168073 20260127151102.0 doi 10.1007/s10948-012-2029-8 sideral 81723 ART-2013-81723 eng Costa, F.M. Effect of current polarity on BSCCO/Ag ceramics textured by electrically assisted laser floating zone 2013 Access copy available to the general public Unrestricted Bi-2212/Ag superconducting ceramics were grown using the electrically assisted laser floating zone (EALFZ) technique. The main goal was improving the superconducting properties by applying an electrical current through the sample during the solidification process. The effect of a 100 mA current intensities in two configurations were studied: (i) direct current (connecting the seed rod to the positive pole and the feed to the negative one) and (ii) reverse current (positive pole connected to the feed rod and negative to the seed one). The resulting textured cylindrical bars were annealed in order to obtain the superconducting phases. A strong correlation between current polarity, grain alignment and superconducting properties was observed. The rods grown under direct current exhibit higher critical current density (∼3000 A/cm2) than the ones grown under conventional method (∼2300 A/cm2) or under reverse current condition (∼35 A/cm2). The superior value obtained for the direct current results from a better grain alignment and fewer amount of second phases. info:eu-repo/grantAgreement/ES/DGA/T12 info:eu-repo/grantAgreement/ES/DGA/T87 info:eu-repo/grantAgreement/ES/MICINN/MAT2008-00429 info:eu-repo/grantAgreement/ES/MINECO/MAT2011-22719 info:eu-repo/grantAgreement/ES/UZ/UZ2011-TEC-03 info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 0.93 2013 PHYSICS, CONDENSED MATTER 53 / 67 = 0.791 2013 Q4 T3 PHYSICS, APPLIED 102 / 135 = 0.756 2013 Q4 T3 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Rasekh, S. (orcid)0000-0003-3466-9952 Ferreira, N.M. Sotelo, A. Universidad de Zaragoza (orcid)0000-0001-7056-0546 Diez, J.C. Universidad de Zaragoza (orcid)0000-0001-9995-6368 Madre, M.A. Universidad de Zaragoza (orcid)0000-0002-0794-3998 5001 065 Universidad de Zaragoza Dpto. Ciencia Tecnol.Mater.Fl. Área Cienc.Mater. Ingen.Metal. 26, 4 (2013), 943-946 Journal of Superconductivity and Novel Magnetism Journal of Superconductivity and Novel Magnetism 1557-1939 434878 http://zaguan.unizar.es/record/168073/files/texto_completo.pdf Postprint 1328888 http://zaguan.unizar.es/record/168073/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:168073 articulos driver 2026-01-27-15:07:34 ARTICLE