Effects of Dy2O3 Nanoparticle Addition on Structural and Superconducting Properties of BSCCO
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Bibliographic record
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.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
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 | 0.001 |
| 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)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it