Title :
Advances towards the rolling processing of long BSCCO tapes
Author :
Miao, H. ; Lera, F. ; Larrea, A. ; de la Fuente, G.F. ; Navarro, R.
Author_Institution :
Inst. de Ciencia de Mater. de Aragon, Zaragoza Univ., Spain
fDate :
6/1/1997 12:00:00 AM
Abstract :
Uniform long length Ag clad mono-filamentary BSCCO tapes have been produced by the powder in tube method making use of drawing, cold rolling and annealing processes. The influence of the starting BSCCO powders, packing method and Ag addition on BSCCO/Ag superconducting tapes have been analyzed using XRD and scanning electron microscopy combined with EDX and Image Analysis. In addition, extensive electrical transport measurements have been carried out. Average values of J/sub c//spl ap/12 kA/cm/sup 2/ with a dispersion of /spl plusmn/5% over a 1 m length have been obtained.
Keywords :
X-ray chemical analysis; X-ray diffraction; annealing; bismuth compounds; calcium compounds; cold rolling; critical current density (superconductivity); high-temperature superconductors; scanning electron microscopy; silver; strontium compounds; superconducting tapes; 1 m; Ag addition; Bi/sub 2/Sr/sub 2/Ca/sub 2/Cu/sub 3/O/sub 10/-Ag; EDX; Image Analysis; XRD; annealing processes; cold rolling; drawing; electrical transport measurements; high temperature superconductor; long BSCCO tapes; packing method; rolling processing; scanning electron microscopy; uniform long length Ag clad mono-filamentary BSCCO tapes; Aggregates; Annealing; Bismuth compounds; Electrons; Fabrication; Image analysis; Morphology; Powders; Superconducting films; X-ray scattering;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
