Improvement of flux pinning ability by tungsten oxide nanoparticles added in YBa2Cu3Oy superconductor. Issue 6 (15th April 2019)

• Record Type: Journal Article
• Authors: Slimani, Y.; Almessiere, M.A.; Hannachi, E.; Mumtaz, M.; Manikandan, A.; Baykal, A.; Ben Azzouz, F.
• Is Part Of: Ceramics international. Volume 45:Issue 6(2019)
• Page Start: 6828
• Page End: 6835
• Publication Date: 2019-04-15
• Subjects: YBa2Cu3Oy superconductor -- WO3 nanoparticles -- Structure -- Flux pinning -- Critical current density; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2018.12.176
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: In this study, series of superconductor-tungsten oxide (WO3 ) nanoparticles composites, YBa2 Cu3 O7-δ /(WO3 )x, were produced via the solid-state reaction process. The structural, morphological, chemical compositions, electrical and magnetic properties were investigated using X-ray diffraction (XRD), scanning electron microscope (SEM) along with EDX system and physical properties measurement system (PPMS), respectively. The XRD, SEM and EDX analyses showed the successful formation of the Y-123 orthorhombic phase. The electrical resistivity measurements proved the occurrence of superconductivity in different samples. The magnetic results showed an improvement of critical current density (Jc ) and pinning ability in WO3 nanoparticles added Y-123 products. The dominant pinning mechanisms and the strength of pinning centers in various sintered products were examined and discussed. The measurements of zero-field-cooled (ZFC) and field-cooled (FC) magnetization versus temperature (M-T) indicated an increase in the magnitude of diamagnetic signal with the addition of WO3 nanoparticles in the Y-123 superconductor.