ANALYSIS OF CHANGES IN THE CURRENT-CARRYING CAPACITY OF SECOND-GENERATION HTS TAPES AFTER APPLYING A COMPRESSIVE MECHANICAL LOAD
- Authors: Preobrazhenskiy I.I.1,2, Guryev V.V.1, Diev D.N.1, Naumov A.V.1, Polyakov A.V.1, Moseev K.V.1, Makarenko M.N.1, Shavkin S.V.1
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Affiliations:
- NRC “Kurchatov Institute”
- Lomonosov Moscow State University
- Issue: Vol 126, No 6 (2025)
- Pages: 660-668
- Section: ЭЛЕКТРИЧЕСКИЕ И МАГНИТНЫЕ СВОЙСТВА
- URL: https://journals.rcsi.science/0015-3230/article/view/297004
- DOI: https://doi.org/10.31857/S0015323025060035
- ID: 297004
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Abstract
Currently, projects of large-scale magnetic systems based on second-generation high-temperature superconductors (HTS) are actively being developed all over the world. Significant mechanical stresses occur during the production and operation of conductive elements, which can adversely affect the conductivity. In this study, an analysis was conducted on the changes in conductivity of HTS tapes with various architectures
after applying compressive mechanical loads at room temperature. The HTS tapes produced at S-Innovations and those manufactured on the Kurchatov Institute's production line were used for investigation. It was shown that additional coating of HTS tape with POS-61 solder (Sn61/Pb39) lead to a decrease in conductivity at lower compressive mechanical loads compared to non-coated samples. It was also found
that compressive loads of 50 MPa led to a significant increase in longitudinal inhomogeneity and local increase in critical current above values in original tape. Comparative analysis of critical currents obtained
using transport method and calculated from Hall magnetometry data was carried out. Results obtained by these complementary methods were consistent for all samples if exponential form of local volt-ampere
characteristic was assumed.
About the authors
Ilya Ivanovich Preobrazhenskiy
NRC “Kurchatov Institute”;Lomonosov Moscow State University
Author for correspondence.
Email: preo.ilya@yandex.ru
ORCID iD: 0000-0003-2352-6745
Scopus Author ID: 58094092300
ResearcherId: IXN-8315-2023
Russian Federation, Moscow, 123098 Russia;
Moscow, 119991 Russia
Valentin V. Guryev
NRC “Kurchatov Institute”
Email: Gurev_VV@nrcki.ru
Russian Federation, Moscow, 123098 Russia
Dmitry N. Diev
NRC “Kurchatov Institute”
Email: dndiev@gmail.com
Russian Federation, Moscow, 123098 Russia
Andrey V. Naumov
NRC “Kurchatov Institute”
Email: naumovandrej.isssph@yandex.ru
Russian Federation, Moscow, 123098 Russia
Alexey V. Polyakov
NRC “Kurchatov Institute”
Email: alxadress@gmail.com
Russian Federation, Moscow, 123098 Russia
Kirill V. Moseev
NRC “Kurchatov Institute”
Email: kirit@yandex.ru
Russian Federation, Moscow, 123098 Russia
Marina N. Makarenko
NRC “Kurchatov Institute”
Email: makarenko_MN@rrcki.ru
Russian Federation, Moscow, 123098 Russia
Sergey V. Shavkin
NRC “Kurchatov Institute”
Email: shavkin_SV@nrcki.ru
Russian Federation, Moscow, 123098 Russia
References
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