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Title: Rapid doubling of the critical current of YBa{sub 2}Cu{sub 3}O{sub 7−δ} coated conductors for viable high-speed industrial processing

We demonstrate that 3.5-MeV oxygen irradiation can markedly enhance the in-field critical current of commercial second generation superconducting tapes with an exposure time of just 1 s per 0.8 cm{sup 2}. The speed demonstrated here is now at the level required for an industrial reel-to-reel post-processing. The irradiation is made on production line samples through the protective silver coating and does not require any modification of the growth process. From TEM imaging, we identify small clusters as the main source of increased vortex pinning.
Authors:
; ;  [1] ;  [1] ;  [2] ;  [1] ;  [3] ; ; ;  [4] ; ;  [5] ; ;  [6] ; ;  [7]
  1. Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
  2. (United States)
  3. (Austria)
  4. American Superconductor Corp., 64 Jackson Road, Devens, Massachusetts 01434 (United States)
  5. Electron Microscopy Center-Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
  6. Materials Physics and Applications Division (MPA) & Condensed Matter and Magnet Science (CMMS), Los Alamos, New Mexico 87545 (United States)
  7. Department of Physics, Western Michigan University, Kalamazoo, Michigan 49008 (United States)
Publication Date:
OSTI Identifier:
22486054
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 107; Journal Issue: 19; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CRITICAL CURRENT; IRRADIATION; MEV RANGE 01-10; OXYGEN; PROCESSING; SILVER; TRANSMISSION ELECTRON MICROSCOPY; VELOCITY