Abstract
We studied the influence of the aspect ratio (width/thickness) of a Bi-2223/Ag tape on AC transport current losses in multifilamentary tape. The aspect ratio of the original tape (27.4) was stepwise decreased to 14.5. We used three different methods of sample width reduction (A, B and C). The current - voltage characteristics were measured for all sample widths. We observed that the hysteresis of the current–voltage characteristic was reduced with sample width reduction. At small sample widths the hysteresis practically did not appear. The magnetic field dependence of the critical current, IC (B), was measured as a function of the sample width. Also the critical current and the engineering critical current density as a function of the tape width were evaluated. The transport current losses of the tape samples with different widths were measured at 57 Hz and compared with the Norris equation for an elliptical model.The experiment showed that the slope of the transport current loss–current does not depend on the aspect ratio.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
