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Enhanced normal zone propagation velocity in REBCO coated conductors using an intermetallic stabilizer coating

Pedro Barusco, Haifa Ben-Saad, Delano Horn-Bourque, Christian Lacroix, Frédéric Sirois, Teresa Puig, J. Gutierrez, Xavier Granados and Xavier Obradors

Article (2024)

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Abstract

The Current Flow Diverter (CFD) is an established concept that has proven to effectively reduce the probability of destructive hot spots by boosting the normal zone propagation velocity (NZPV) in commercial REBa 2 Cu 3 O 7 (REBCO; RE = Rare Earth) coated conductors (CC). However, incorporating the CFD concept requires finding a scalable method that is also compatible with the already established R2R fabrication process used by CC manufacturers. This study presents a new simple & cost-effective proof-of-concept technique capable of recreating the CFD architecture in commercial CCs coated with silver. The technique is based on promoting a locally controlled thin film diffusion reaction between the silver stabilizer and pure indium. Due to fast diffusion in the Ag-In system, stable Intermetallic Compounds (IMC) are formed throughout the whole thickness of the silver layer reaching the REBCO interface. The presence of Ag-In IMC in the interface safely increases the interfacial resistance (Ω-cm 2 ) by orders of magnitude, thus allowing to safely form the CFD interlayer. Silver-coated tape samples altered using this CFD-IMC have shown an NZPV increase of 5–8x when compared with pristine samples.

Uncontrolled Keywords

coated conductors; HTS; NZPV; quench

Subjects: 2500 Electrical and electronic engineering > 2500 Electrical and electronic engineering
2500 Electrical and electronic engineering > 2501 Power systems
2500 Electrical and electronic engineering > 2508 Communications networks
Department: Department of Electrical Engineering
Funders: FASTGRID Project, SUPERENERTECH, Spanish Ministry of Economy and Competitiveness, European Regional Development Fund, MCIN/AEI/10.13039/501100011033, EU, Generalitat de Catalunya, COST Action NANOCOHYBRI, Center of Excellence Awards Severo Ochoa
Grant number: EUH2020-721019, PID2021-127297OB-C21, RTI2018-095853-BC21, RTI2018-095853-B-C22, TED2021-130004B-I00, 2017-SGR 753, CA16218, SEV-2015-0496, CEX2019-000917-S
PolyPublie URL: https://publications.polymtl.ca/57771/
Journal Title: IEEE Transactions on Applied Superconductivity (vol. 34, no. 3)
Publisher: IEEE
DOI: 10.1109/tasc.2024.3357444
Official URL: https://doi.org/10.1109/tasc.2024.3357444
Date Deposited: 28 Mar 2024 15:20
Last Modified: 25 Apr 2024 15:14
Cite in APA 7: Barusco, P., Ben-Saad, H., Horn-Bourque, D., Lacroix, C., Sirois, F., Puig, T., Gutierrez, J., Granados, X., & Obradors, X. (2024). Enhanced normal zone propagation velocity in REBCO coated conductors using an intermetallic stabilizer coating. IEEE Transactions on Applied Superconductivity, 34(3), 6600906 (6 pages). https://doi.org/10.1109/tasc.2024.3357444

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