BSCCO superconductor micro/nanofibers produced by solution blow-spinning technique
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Data
2017-07-01
Autores
Cena, C. R.
Torsoni, G. B.
Zadorosny, L. [UNESP]
Malmonge, L. F. [UNESP]
Carvalho, C. L. [UNESP]
Malmonge, J. A. [UNESP]
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This paper presents the synthesis and characterization of BSCCO superconducting fibers synthesized by heat-treating poly(vinyl pyrrolidone) (PVP)/BSCCO precursor microfibers produced by the solution blow-spinning technique. Different concentrations (v/v) of the BSCCO precursor were added to the PVP solution to evaluate the influence of solution viscosity on fiber morphology. The production of PVP/BSCCO microfibers and their morphology were strongly influenced by the volatility of the solvent and the concentration of the added BSCCO in the solution. After heat-treatment, fibrous structures were obtained for the BSCCO system. The structural properties of the samples were analyzed by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The XRD pattern revealed the formation of Bi2Sr2Ca1Cu2Ox and Bi1,9Sr1,8CuO5,5 phases. Finally, electrical measurements (R×T) showed electrical resistance decay at the transition temperature (Tc) that was typical of that observed in superconductor materials.
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Palavras-chave
Bi-2212, Nanofibers, Solution blow-spinning, Superconductor
Como citar
Ceramics International, v. 43, n. 10, p. 7663-7667, 2017.