skip to main content

Title: Effect of nanowires SiO{sub 2} on superconducting properties of YBa{sub 2}Cu{sub 3}O{sub 7−d} bulks

The effects of SiO{sub 2} nanowires on the superconducting properties of YBa{sub 2}Cu{sub 3}O{sub 7−d} (YBCO) compound were studied. Samples were synthesized in air using a standard solid state reaction technique by adding nanowires SiO{sub 2} up to 1wt.%. Phase analysis by X-ray diffraction (XRD), microstructure investigation by scanning electron microscopy (SEM) coupled with energy dispersive X-ray spectroscopy (EDXS), critical current density dependence on applied magnetic field J{sub c}(H) and electrical resistivity as a function of temperature ρ(T) were carried out to evaluate the relative performance of samples. We find that T{sub co} does not change much (90.8-90.2 K) with the low concentration of SiO{sub 2} (≤ 0.1 wt.%) and J{sub c}(H) is enhanced.
Authors:
; ; ; ; ;  [1] ;  [2]
  1. L3M Laboratory, Department of Physics, Faculty of Sciences of Bizerte, University of Carthage. 7021 Zarzouna (Tunisia)
  2. CNRS-ICMPE-UMR 7182 University Paris 12 (France)
Publication Date:
OSTI Identifier:
22261730
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1569; Journal Issue: 1; Conference: 3. international advances in applied physics and materials science congress, Antalya (Turkey), 24-28 Apr 2013; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CRITICAL CURRENT; CURRENT DENSITY; ELECTRIC CONDUCTIVITY; MAGNETIC FIELDS; MICROSTRUCTURE; PHASE STUDIES; QUANTUM WIRES; SCANNING ELECTRON MICROSCOPY; SILICA; SILICON OXIDES; SOLIDS; TEMPERATURE DEPENDENCE; X-RAY DIFFRACTION; X-RAY SPECTROSCOPY