Publication
Title
Double-disordered HTS-coated conductors and their assemblies aimed for ultra-high fields : large area tapes
Author
Abstract
Double disordered (DD) HTS layers processed via high-fluence PLD with modulated pressure and barium zirconate precipitation yield very high engineering current densities, above 900 and 600 A/mm(2) at 18 and 31 T, respectively, measured at 4.2 K and B||c. Tape architecture is based on 50-100-mu m-thick polished stainless steel tape which prior to DD-HTS deposition was coated with YSZ template yielding a biaxial in-plane texture with FWHM = 10-11 degrees characterized using phi-scan XRD technique. High-resolution nanostructural analysis indicated a number of nonusual features inDDYBCOlayers regarding "firework"-like orientation of nanoprecipitations /nanochains. These new features result in a very high concentration of local defects which reduce the critical current (I-c) measured at 77 K, self-field to about 30% of the corresponding I-c in non-DD YBCO, and simultaneously lead to substantial gaining of I-c at high fields. The main result is a substantial improvement of I-c and engineering current density (J(e)) achieved at high field and liquid Helium temperature in long length, large area tapes with 4 and 12 mm width. J(e) above 970 A/mm2 at 4.2 K, B = 18 T, B||c was achieved in 12-mm-wide tape.
Language
English
Source (journal)
IEEE transactions on applied superconductivity / IEEE [New York, N.Y.] - New York, N.Y.
Publication
New York, N.Y. : 2018
ISSN
1051-8223
Volume/pages
28:4(2018), 6 p.
Article Reference
6602506
ISI
000432422800001
Medium
E-only publicatie
Full text (Publisher's DOI)
Full text (publisher's version - intranet only)
UAntwerpen
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 12.06.2018
Last edited 02.08.2021
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