Effects of Dy2 O3 Nanoparticle Addition on Structural and Superconducting Properties of BSCCO
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Bibliographic record
Abstract
To study the effects of Dy2 O3 nanoparticle addition to BSCCO superconducting system, four bulk polycrystalline samples with general formula of Bi1.6Pb0.4Sr2 Ca2 Cu3 Oy + xDy2 O3 (where, x = 0.0, 0.5, 1.0, 2.0 wt%) were prepared by chemical sol-gel method. Dy2 O3 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 ∆Tc (Tc, onset‒Tc. R = 0), hole concentration, intergrain connectivity and Jc in BSCCO superconducting system by adding 0.5 wt% Dy2 O3 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
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Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.002 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
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Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
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