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Effect of synthesis conditions on the phase composition and critical current density of Bi1.6Pb0.4Sr2−x KxCa2Cu3F0.8Oy

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Abstract

Effects of the temperature-time schedule on the phase composition, critical current density j c, critical temperature T c, and electric resistance in the normal state (ρ) of the samples of Bi1.6Pb0.4Sr2−x KxCa2Cu3F0.8Oy (x=0 or 0.02) compositions were studied by X-ray diffraction analysis and by measuring resistances and current-voltage characteristics of the samples. The values of j c=of 583.6 A/cm2 (at 77.4 K) and T c(R=0)=107.1 K were obtained in the samples with x=0.02 upon partial fusion. In order to obtain high j c values, the samples must be synthesized (sintered) prior to the fusion stage.

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Translated from Pis’ma v Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 26, No. 8, 2000, pp. 88–94.

Original Russian Text Copyright © 2000 by Petrashko, Novysh, Prytkova, Gololobov, Kurochkin.

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Petrashko, V.V., Novysh, B.V., Prytkova, N.A. et al. Effect of synthesis conditions on the phase composition and critical current density of Bi1.6Pb0.4Sr2−x KxCa2Cu3F0.8Oy . Tech. Phys. Lett. 26, 354–356 (2000). https://doi.org/10.1134/1.1262842

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  • DOI: https://doi.org/10.1134/1.1262842

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