Journal
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
Volume 11, Issue 1, Pages 3269-3272Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/77.919760
Keywords
BSCCO tape; Magneto-optical imaging; current reconstruction; connectivity of grains
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Magneto-optical imaging, electromagnetic measurements and SEM have been used for the characterization of a monoeore BSCCO tape made by oxide powder-in-tube process which had a transport J(c) (77K, 0T) of 37kA/cm(2), Our study evaluates the connectivity between superconducting grains and reconstructs the local current distribution at < 10 mum scale. Some local regions are found to carry ap to 180 kA/cm(2) at 77 K, a new record for BSCCO wires.
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