Author:
Paidpilli M,Boyina K,Shyam V,Galstyan E,Majkic G,Selvamanickam V
Abstract
Abstract
REBCO (REBa2Cu3O7−δ
) coated conductor with Je
> 1000 A/mm2 at operating condition is being utilized in fusion and high-field-magnet applications. We have demonstrated short REBCO samples with an engineering current density (Je
) ~ 4,600 A/mm2 (based on 0.1 mm thick tape) at 4.2 K, 20 T using Advanced Metal-Organic Chemical Vapor Deposition (A-MOCVD). In order to achieve such high performance uniformly over long tapes, defective regions in thick films need to be avoided. In this work, we investigated parameters that cause dropout or variation in the critical current along the length of long tapes made by A-MOCVD. By addressing the engineering challenges of growing 4+ μm thick REBCO films in a single pass, 10+ m long tapes with high critical current that varies < 5% along the length have been fabricated.
Subject
General Physics and Astronomy
Cited by
1 articles.
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