Resumo

SUPELANO GARCIA, Iván et al. Synthesis and Structural Properties of La_1,5+xBa_1,5+x-yCa_yCu₃O_z Superconductor System. Ciencia en Desarrollo [online]. 2013, vol.4, n.2, pp.27-32. ISSN 0121-7488.

In this paper it is analyzed the system La_1,5+xBa_1,5+x-yCa_yCu₃O_z, based on the production of samples that are in the range of single phase, pure phase, proposed by West [1]. The structural analysis was carried out starting from X Rays Diffraction (XRD), being able to establish a first indication of the presence of pure phase in the system La_1,5+xBa_1,5+x-yCa_yCu₃O_z, which was corroborated through the refinement Rietveld. Structural parameters of the samples were obtained by the standard method of reaction of solid state. This first indication was also corroborated with measures of Scanning Electronic Microscopy (SEM), and the elementary composition was verifyed through Energy for Dispersion of X Rays (EDX). Finally, and having into account the carried out analysis, it is shown that most of the samples present superconductor characteristics of high planar anisotropy and that although the total range proposed by West corresponds to superconductor systems, not all the samples present pure phase

Palavras-chave : Superconductor; CLBCO; pure phase; XRD.

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