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Title: The low-temperature, high-magnetic-field critical current characteristics of Zr-added (Gd, Y)Ba2Cu3Ox superconducting tapes

Abstract

Critical current performances of state-of-the-art Zr-added (Gd, Y)BaCuO tapes have been investigated over a temperature range of 20-77 K, in magnetic fields up to 9 T and over a wide angular range of magnetic field orientations. The peak in critical current that is commonly observed in the field orientation perpendicular to the tape in BaZrO3 (BZO) containing superconducting tapes is found to vanish at 30 K in magnetic fields at 1-9 T. While the critical current of 15% Zr-added tapes was about 40% lower than that of 7.5% Zr-added tapes at 77 K, the pinning force values of the former were found to be 18-23% higher than those of the latter in the temperature range of 20-40 K and in magnetic fields of 3-5 T. The results from this study emphasize the importance of optimization of coated conductor fabrication processes for optimum performance not just in low magnetic fields at 77 K but also at the operating conditions of low temperatures and high magnetic fields that are of interest, especially for rotating superconducting machinery applications.

Authors:
; ; ; ; ; ; ; ; ;
Publication Date:
Sponsoring Org.:
USDOE Advanced Research Projects Agency - Energy (ARPA-E)
OSTI Identifier:
1211368
DOE Contract Number:  
DE-AR0000196
Resource Type:
Journal Article
Journal Name:
Superconductor Science and Technology
Additional Journal Information:
Journal Volume: 25; Journal Issue: 12; Journal ID: ISSN 0953-2048
Country of Publication:
United States
Language:
English

Citation Formats

Selvamanickam, V, Yao, Y, Chen, Y, Shi, T, Liu, Y, Khatri, ND, Liu, J, Lei, C, Galstyan, E, and Majkic, G. The low-temperature, high-magnetic-field critical current characteristics of Zr-added (Gd, Y)Ba2Cu3Ox superconducting tapes. United States: N. p., 2012. Web. doi:10.1088/0953-2048/25/12/125013.
Selvamanickam, V, Yao, Y, Chen, Y, Shi, T, Liu, Y, Khatri, ND, Liu, J, Lei, C, Galstyan, E, & Majkic, G. The low-temperature, high-magnetic-field critical current characteristics of Zr-added (Gd, Y)Ba2Cu3Ox superconducting tapes. United States. doi:10.1088/0953-2048/25/12/125013.
Selvamanickam, V, Yao, Y, Chen, Y, Shi, T, Liu, Y, Khatri, ND, Liu, J, Lei, C, Galstyan, E, and Majkic, G. Fri . "The low-temperature, high-magnetic-field critical current characteristics of Zr-added (Gd, Y)Ba2Cu3Ox superconducting tapes". United States. doi:10.1088/0953-2048/25/12/125013.
@article{osti_1211368,
title = {The low-temperature, high-magnetic-field critical current characteristics of Zr-added (Gd, Y)Ba2Cu3Ox superconducting tapes},
author = {Selvamanickam, V and Yao, Y and Chen, Y and Shi, T and Liu, Y and Khatri, ND and Liu, J and Lei, C and Galstyan, E and Majkic, G},
abstractNote = {Critical current performances of state-of-the-art Zr-added (Gd, Y)BaCuO tapes have been investigated over a temperature range of 20-77 K, in magnetic fields up to 9 T and over a wide angular range of magnetic field orientations. The peak in critical current that is commonly observed in the field orientation perpendicular to the tape in BaZrO3 (BZO) containing superconducting tapes is found to vanish at 30 K in magnetic fields at 1-9 T. While the critical current of 15% Zr-added tapes was about 40% lower than that of 7.5% Zr-added tapes at 77 K, the pinning force values of the former were found to be 18-23% higher than those of the latter in the temperature range of 20-40 K and in magnetic fields of 3-5 T. The results from this study emphasize the importance of optimization of coated conductor fabrication processes for optimum performance not just in low magnetic fields at 77 K but also at the operating conditions of low temperatures and high magnetic fields that are of interest, especially for rotating superconducting machinery applications.},
doi = {10.1088/0953-2048/25/12/125013},
journal = {Superconductor Science and Technology},
issn = {0953-2048},
number = 12,
volume = 25,
place = {United States},
year = {2012},
month = {10}
}