Improvement in organization of Cu–O coordination and super-electrons in Bi-2212 ceramic matrix with Ag/Sr partial substitution

Improvement in organization of Cu–O coordination and super-electrons in Bi-2212 ceramic matrix with Ag/Sr partial substitution

This study rationalizes the reason for an increase in the electrical conductivity, crystal quality, surface morphology, and superconductive transition temperatures for Bi-2212 superconductors via scientific facts and discussions depending on replacing the optimum Ag/Sr sites in the system for the fi...

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Bibliographic Details
Published in:Journal of materials science. Materials in electronics Vol. 35; no. 18; p. 1261
Main Authors: Al Azzawi, Abdullah Nabel Salman, Türköz, Mustafa Burak, Erdem, Ümit, Yildirim, Gürcan
Format: Journal Article
Language:English
Published: New York Springer US 01-06-2024
Springer Nature B.V
Subjects:
Bismuth strontium calcium copper oxide
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Crystal structure
Electrical resistivity
Electrons
Engineering
Magnetic fields
Materials Science
Microcrystals
Morphology
Optical and Electronic Materials
Process controls
Substitutes
Superconductors
Temperature
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Summary:This study rationalizes the reason for an increase in the electrical conductivity, crystal quality, surface morphology, and superconductive transition temperatures for Bi-2212 superconductors via scientific facts and discussions depending on replacing the optimum Ag/Sr sites in the system for the first time. Every experimental result and related calculations indicate the successful replacement of monovalent Ag + ions for the divalent Sr 2+ ions in the polycrystalline Bi-2212 structure. Moreover, it is observed that the bulk Bi-2212 ceramic prepared with a partial substitution level of x  = 0.01 is observed to possess the highest electrical conductivity and superconductive transition temperatures of 84.68 K and 86.26 K for the T c offset and T c onset , respectively. Besides, in the case of the optimum replacement level, the Bi-2212 ceramic exhibits the most uniform and smoothest surface appearance, highest interactions between the grains, best microcrystal distributions/orientations, and largest average crystalline distribution along the crystal structure. In this regard, this study becomes a leader in broadening the application spectra including the heavy-industrial technologies, innovative, advanced engineering-related sectors, and large-scale application fields for Bi-2212 superconducting ceramics.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-024-12914-9