Indian Journal of Science and Technology

Open Access Open Access  Restricted Access Subscription Access

Effects of Dy2O3 Nanoparticle Addition on Structural and Superconducting Properties of BSCCO


Affiliations
1 Department of Physics, University of Birjand, Iran, Islamic Republic of
2 Department of Physics, Ferdowsi University of Mashhad, Iran, Islamic Republic of
3 Isfahan University of Technology, Iran, Islamic Republic of
4 Depatment of Physics, Simon Fraser University, Burnaby, BC, Canada, Canada
 

To study the effects of Dy2O3 nanoparticle addition to BSCCO superconducting system, four bulk polycrystalline samples with general formula of Bi1.6Pb0.4Sr2Ca2Cu3Oy + xDy2O3 (where, x = 0.0, 0.5, 1.0, 2.0 wt%) were prepared by chemical sol-gel method. Dy2O3 nanoparticles were added to the BSCCO system in order to improve the connectivity among the grains leading to increase in the critical current density (Jc). X-ray diffraction, SEM, TEM and Energy Dispersive X-ray spectroscopy (EDX) were used for structural characterization of the samples. XRD analysis showed that both (Bi,Pb)-2223 and Bi-2212 phases coexist in the samples having orthorhombic crystal structure. DC electrical resistivity and AC magnetic susceptibility were measured. DC electrical resistivity and AC magnetic susceptibility measurements showed improvements in ΔTc( Tc, onset‒Tc. R = 0), hole concentration, intergrain connectivity and Jc in BSCCO superconducting system by adding 0.5 wt% Dy2O3 nanoparticles to it. While for x > 1, DC and AC measurements did not present satisfactory results.

Keywords

AC Magnetic Susceptibility, Bi-2223, DC Electrical Resistivity, SEM, TEM, XRD
User

Abstract Views: 230

PDF Views: 0




  • Effects of Dy2O3 Nanoparticle Addition on Structural and Superconducting Properties of BSCCO

Abstract Views: 230  |  PDF Views: 0

Authors

Amir Zelati
Department of Physics, University of Birjand, Iran, Islamic Republic of
Ahmad Amirabadizadeh
Department of Physics, University of Birjand, Iran, Islamic Republic of
Ahmad Kompany
Department of Physics, Ferdowsi University of Mashhad, Iran, Islamic Republic of
Hadi Salamati
Isfahan University of Technology, Iran, Islamic Republic of
Jeff Sonier
Depatment of Physics, Simon Fraser University, Burnaby, BC, Canada, Canada

Abstract


To study the effects of Dy2O3 nanoparticle addition to BSCCO superconducting system, four bulk polycrystalline samples with general formula of Bi1.6Pb0.4Sr2Ca2Cu3Oy + xDy2O3 (where, x = 0.0, 0.5, 1.0, 2.0 wt%) were prepared by chemical sol-gel method. Dy2O3 nanoparticles were added to the BSCCO system in order to improve the connectivity among the grains leading to increase in the critical current density (Jc). X-ray diffraction, SEM, TEM and Energy Dispersive X-ray spectroscopy (EDX) were used for structural characterization of the samples. XRD analysis showed that both (Bi,Pb)-2223 and Bi-2212 phases coexist in the samples having orthorhombic crystal structure. DC electrical resistivity and AC magnetic susceptibility were measured. DC electrical resistivity and AC magnetic susceptibility measurements showed improvements in ΔTc( Tc, onset‒Tc. R = 0), hole concentration, intergrain connectivity and Jc in BSCCO superconducting system by adding 0.5 wt% Dy2O3 nanoparticles to it. While for x > 1, DC and AC measurements did not present satisfactory results.

Keywords


AC Magnetic Susceptibility, Bi-2223, DC Electrical Resistivity, SEM, TEM, XRD



DOI: https://doi.org/10.17485/ijst%2F2014%2Fv7i2%2F50244