Study of HTS conductors made from combinations of HTS tapes

Abstract

To increase current carrying capacity of an HTS conductor we combined two HTS tapes by soldering or packaging. It permitted to increase current carrying capacity of conductors, while not exactly proportional to the number of tapes used. Slight critical currents reduction is more pronounced for the magnetic fields parallel to the tape's surface due to induced current loops. Affect of the self field on critical currents is more pronounced when perpendicular external fields are applied. Complicated current transfer between tapes has been observed and should be taken into account during characterization of combined tapes. © 2006 IOP Publishing Ltd.