The magnetic behavior and mechanical properties of low resistance joints of GdBa2Cu3O7 − δ 2G tapes
- Authors: Troitskii A.V.1, Antonova L.K.1, Mikhailova G.N.1, Mikhailov B.P.2, Prosvirnin D.V.2, Markelov A.V.3, Samoilenkov S.V.3, Molodyk A.A.3
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Affiliations:
- Prokhorov Institute of General Physics
- Baikov Institute of Metallurgy and Materials Science
- SuperOx-Innovations
- Issue: Vol 7, No 2 (2016)
- Pages: 261-265
- Section: Methods of Materials Properties Analysis
- URL: https://journals.rcsi.science/2075-1133/article/view/204976
- DOI: https://doi.org/10.1134/S2075113316020234
- ID: 204976
Cite item
Abstract
The electrical properties of contacts of second-generation (2G) GdBCO superconducting tape conductors, which are soldered by Rose’s and PbSn solders, are investigated in an external magnetic field up to 5 T at a liquid nitrogen boiling temperature. The joint resistance at T = 77 K in the case of PbSn solder is approximately half that in the case of Rose’s alloy. The rise in the contact magnetoresistance with the field is weak and independent of the orientation of the magnetic field, and it is saturated in fields on the order of 3 T for both solders. The mechanical tensile strength of initial tape conductors and contacts is measured at room temperature. The ultimate strength of contacts produced by the PbSn solder is more than twice that for the contact made by Rose’s alloy. In the latter case, the ultimate tensile strength is lower than the critical stress of superconductor degradation.
About the authors
A. V. Troitskii
Prokhorov Institute of General Physics
Author for correspondence.
Email: at@kapella.gpi.ru
Russian Federation, ul. Vavilova 38, Moscow, 119991
L. Kh. Antonova
Prokhorov Institute of General Physics
Email: at@kapella.gpi.ru
Russian Federation, ul. Vavilova 38, Moscow, 119991
G. N. Mikhailova
Prokhorov Institute of General Physics
Email: at@kapella.gpi.ru
Russian Federation, ul. Vavilova 38, Moscow, 119991
B. P. Mikhailov
Baikov Institute of Metallurgy and Materials Science
Email: at@kapella.gpi.ru
Russian Federation, Leninskii pr. 49, Moscow, 119991
D. V. Prosvirnin
Baikov Institute of Metallurgy and Materials Science
Email: at@kapella.gpi.ru
Russian Federation, Leninskii pr. 49, Moscow, 119991
A. V. Markelov
SuperOx-Innovations
Email: at@kapella.gpi.ru
Russian Federation, Nauchnyi proezd 20, Moscow, 117246
S. V. Samoilenkov
SuperOx-Innovations
Email: at@kapella.gpi.ru
Russian Federation, Nauchnyi proezd 20, Moscow, 117246
A. A. Molodyk
SuperOx-Innovations
Email: at@kapella.gpi.ru
Russian Federation, Nauchnyi proezd 20, Moscow, 117246