caa a22 4500 44538011X CHVBK 20180317143014.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1007/s10948-011-1171-z doi (NATIONALLICENCE)springer-10.1007/s10948-011-1171-z Improving the Physical Properties of (Bi, Pb)-2223 Phase by SnO2 Nano-particles Addition [Elektronische Daten] [A. Abou-Aly, M. AbdelGawad, R. Awad, I. G-Eldeen] In this work, the effect of SnO2 nano-particles (40nm) addition to the physical properties of Bi1.6Pb0.4Sr2Ca2Cu3O10+δ superconducting phase was studied. (Bi, Pb)-2223 superconductor phase added by SnO2 nano-particles was prepared by a conventional solid-state reaction technique. The SnO2 nano-particles concentrations x varied from 0.0 to 2.0wt% of the sample's total mass. The prepared samples were investigated by X-ray powder diffraction (XRD), scanning electron microscope (SEM) and electron dispersive spectroscopy (EDS) for analyzing phase formation and microstructure. Also, the electrical resistivity and transport critical current density, for investigated samples, were measured by standard dc four-probe method. Phase examination by XRD indicated that SnO2 nano-particles enhanced the (Bi, Pb)-2223 phase formation up to x=0.4wt%. On the other hand, the high concentrations of SnO2 nano-particles retarded the phase formation. Granular investigation, from scanning electron microscope, showed that both number and size of voids decreased as x increased from 0.0 to 0.4wt%. The superconducting transition temperature and transport critical current density were found to have optimal values at x=0.4wt%. The enhancement rates in T c and J c were 12 and 58%, respectively, which had a maximum enhancement in both J c and T c for all investigated nano-particles. Springer Science+Business Media, LLC, 2011 (Bi, Pb)-2223 phase nationallicence SnO2 nano-particles nationallicence Electrical resistivity transport critical current density nationallicence Abou-Aly A. Phycics Department, Faculty of Science, Alexandria University, 21511, Alexandria, Egypt aut AbdelGawad M. Physics Department, Faculty of Education, Alexandria University, Alexandria, Egypt aut Awad R. Phycics Department, Faculty of Science, Alexandria University, 21511, Alexandria, Egypt aut G-Eldeen I. Physics Department, Faculty of Education, Alexandria University, Alexandria, Egypt aut Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/7(2011-10-01), 2077-2084 1557-1939 24:7<2077 2011 24 10948 https://doi.org/10.1007/s10948-011-1171-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-011-1171-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Abou-Aly A. Phycics Department, Faculty of Science, Alexandria University, 21511, Alexandria, Egypt aut NATIONALLICENCE 700 1- AbdelGawad M. Physics Department, Faculty of Education, Alexandria University, Alexandria, Egypt aut NATIONALLICENCE 700 1- Awad R. Phycics Department, Faculty of Science, Alexandria University, 21511, Alexandria, Egypt aut NATIONALLICENCE 700 1- G-Eldeen I. Physics Department, Faculty of Education, Alexandria University, Alexandria, Egypt aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/7(2011-10-01), 2077-2084 1557-1939 24:7<2077 2011 24 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer