caa a22 4500 445381388 CHVBK 20180317143018.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s10948-010-0996-1 doi (NATIONALLICENCE)springer-10.1007/s10948-010-0996-1 Size Effect of Insulating Nano-Inclusions in Y-Ba-Cu-O Bulk Superconductors Fabricated by Seeded Infiltration Growth [Elektronische Daten] [Nahed Moutalbi, Ali M'chirgui, Jacques Noudem] We have conducted an experimental study on the effect of the pinning centers size on the superconducting properties in textured YBCO samples. In this work, we investigated the effectiveness of the addition of an insulating inclusion on the superconducting and magnetic properties of textured YBCO bulk materials. The purpose of this study was to ascertain whether the size of artificial pinning centers is able to affect the superconducting properties of our samples. To this effect insulating nano-pinning centers with two different particle size distributions of about 20nm and 130nm have been successfully incorporated within YBCO matrix by slight doping with nano-particle alumina dispersions. The microstructure and superconducting properties were investigated by scanning electron microscopy (SEM) and SQUID. The results indicate that slight inclusions of nano-alumina can enhance the flux-pinning capability of samples. This study underlines the dependence of the pinning force on the size of the pinning centers. Springer Science+Business Media, LLC, 2010 Y-based cuprates nationallicence Alumina nationallicence Pinning nationallicence Embedded insulating nano-particles nationallicence Size effect nationallicence Magnetic properties nationallicence Moutalbi Nahed Department of Physics, Faculty of Sciences, Zarzouna, 7021, Bizerte, Tunisia aut M'chirgui Ali Department of Physics, Faculty of Sciences, Zarzouna, 7021, Bizerte, Tunisia aut Noudem Jacques CRISMAT Laboratory, CNRS UMR 6508 ENSICAEN/CNRS et Université de Caen Basse-Normandie, 6 Bd Maréchal Juin, 14050, Caen Cedex 04, France aut Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/1-2(2011-01-01), 365-369 1557-1939 24:1-2<365 2011 24 10948 https://doi.org/10.1007/s10948-010-0996-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-010-0996-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Moutalbi Nahed Department of Physics, Faculty of Sciences, Zarzouna, 7021, Bizerte, Tunisia aut NATIONALLICENCE 700 1- M'chirgui Ali Department of Physics, Faculty of Sciences, Zarzouna, 7021, Bizerte, Tunisia aut NATIONALLICENCE 700 1- Noudem Jacques CRISMAT Laboratory, CNRS UMR 6508 ENSICAEN/CNRS et Université de Caen Basse-Normandie, 6 Bd Maréchal Juin, 14050, Caen Cedex 04, France aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/1-2(2011-01-01), 365-369 1557-1939 24:1-2<365 2011 24 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer