NDLI: Influence of Oxygenation in Copper Stabilized Multifilamentary 2G HTS Tapes Made by Selective Electroplating and Laser Ablation

Content Provider	IEEE Xplore Digital Library
Author	Kesgin, I. Levin, G.A. Xinwei Cai Xiao-Fen Li Haugan, T.J. Selvamanickam, V.
Copyright Year	2002
Abstract	Striation and selective electroplating of copper stabilizer layer has been proven to be an effective way of reducing the hysteretic AC loss of second generation high temperature superconducting (2G-HTS) tapes. This method consists of a top down laser material removal (ablation) followed by post-oxygenation to create resistive oxide layer on the grooves and selective electroplating of a thick Cu stabilizer layer on the filaments. In such a filamentization technique, scalability, the degree of coupling loss contribution and critical current (I_c) degradations are the main concerns. In this study, we have investigated the post-oxygenation temperature effect on the I_c degradation and coupling loss contribution. The results showed that post-oxygenation temperature has immense effect on the I_c degradation and also alters the coupling loss contribution to the total magnetization AC losses. The coupling loss contribution was found to be less in samples oxygenated at higher temperatures; however, the degradation of I_c was found to be higher. In addition, preliminary experiments were conducted to scale-up this newly-developed technique. Initially, 10 m long fully-filamentized tape with thick Cu stabilizer layer was fabricated and at least 5 times reduction in AC loss was observed.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	1
Ending Page	5
Page Count	5
File Size	987536
File Format	PDF
ISSN	10518223
Volume Number	25
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Integrated circuits Couplings Degradation Conductors Temperature measurement Magnetic losses High-temperature superconductors ablation AC losses multifilamentary thin film 2G HTS coated conductor stabilizer layer selective electroplating laser machining reel to reel Ablation
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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