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Proceedings Paper

Modelling of the influence of heavy ions irradiation on the current-voltage characteristics of the HTc superconducting tapes subjected to the bending strain process
Author(s): J. Sosnowski
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Paper Abstract

In the paper has been theoretically analyzed the influence of the nano-sized defects created in HTc superconductors, for instance during the irradiation in the nuclear accelerators, on the current-voltage characteristics and critical current of the HTc superconducting tapes, subjected to the bending strain process. Theoretical model of these characteristics has been proposed basing on the analysis of interaction of the magnetic pancake type vortices with nano-sized defects for various initial states. The model of the change of the bending strain acting on the superconducting filament or film for the second generation composite tape, in the comparison to the applied bending strain, following from the elasticity properties of superconducting tape and geometrical factor has been presented. Current-voltage characteristics versus bending strain have been calculated, which results are in good agreement with experimental data measured on Bi-2223 tape at liquid nitrogen temperature. Model predicts too the appearance of the dynamical anomalies of the current-voltage characteristics, observed us previously.

Paper Details

Date Published: 14 May 2019
PDF: 7 pages
Proc. SPIE 11054, Superconductivity and Particle Accelerators 2018, 110540E (14 May 2019); doi: 10.1117/12.2524880
Show Author Affiliations
J. Sosnowski, Electrotechnical Institute (Poland)

Published in SPIE Proceedings Vol. 11054:
Superconductivity and Particle Accelerators 2018
Dariusz Bocian; Ryszard S. Romaniuk, Editor(s)

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