Title :
Scale up of high-performance Y-Ba-Cu-O coated conductors
Author :
Selvamanickam, V. ; Lee, H.G. ; Li, Y. ; Reeves, J. ; Qiao, Y. ; Xie, Y.Y. ; Lenseth, K. ; Carota, G. ; Funk, M. ; Zdun, K. ; Xie, J. ; Likes, K. ; Jones, M. ; Hope, L. ; Hazelton, D.W.
Author_Institution :
IGC-SuperPower, Schenectady, NY, USA
fDate :
6/1/2003 12:00:00 AM
Abstract :
YBa2Cu3Ox (YBCO) coated conductors have been produced in meter lengths in pilot scale facilities established at IGC-SuperPower. Highly-smooth nickel alloy substrates have been polished in reel-to-reel polishing facility, with a uniform roughness of 2 nm. A pilot-scale ion beam assisted deposition (IBAD) facility has been used to produce 1 to 5 m lengths of buffered tapes with a uniform in-plane texture of 11 degrees and a surface roughness of 12 nm. YBCO has been deposited on meter-lengths of substrates by both pulsed laser deposition (PLD), and metal organic chemical-vapor deposition (MOCVD). End-to-end critical current of 43 A has been achieved in meter-long PLD-based YBCO. Meter-long YBCO tapes with a critical current of 90 A have been produced in MOCVD facility.
Keywords :
MOCVD coatings; barium compounds; critical current density (superconductivity); high-temperature superconductors; ion beam assisted deposition; pulsed laser deposition; superconducting tapes; superconducting thin films; surface topography; yttrium compounds; 1 to 5 m; 12 nm; 2 nm; 43 A; 90 A; MOCVD; YBa2Cu3Ox; end-to-end critical current; high temperature superconductor; high-performance Y-Ba-Cu-O coated conductors; highly-smooth Ni alloy substrates; ion beam assisted deposition; metal organic chemical vapor deposition; pulsed laser deposition; surface roughness; uniform in-plane texture; uniform roughness; Chemical lasers; Conductors; Critical current; Ion beams; MOCVD; Nickel alloys; Pulsed laser deposition; Rough surfaces; Surface roughness; Yttrium barium copper oxide;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2003.811829
