Geometry dependence of magnetic and transport AC losses in Bi-2223/Ag tapes with different aspect ratios

J. Fang, X. M. Luo, D. X. Chen, A. K.M. Alamgir, E. W. Collings, E. Lee, M. D. Sumption, J. G. Fang, H. P. Yi, X. H. Song, S. Q. Guo, M. L. Liu, Y. Xin, Z. Han

Research output: Contribution to journalArticleResearchpeer-review

6 Citations (Scopus)

Abstract

On five Bi-2223/Ag tapes with different aspect ratios from 5 to 26, AC losses have been measured at 77 K while a parallel AC magnetic field or a perpendicular AC magnetic field or a longitudinal AC transport current is applied. It has been found that at any frequency the perpendicular magnetic losses per cycle increase, but the parallel magnetic losses per cycle and the transport losses per cycle decrease as the aspect ratio increases. These experimental results are in accord with theoretical results. Meanwhile, we investigated the geometry dependence of the decay time constant of coupling current and that of full penetration field.
Original languageEnglish
Pages (from-to)1173-1179
JournalSuperconductor Science and Technology
Volume17
Issue number10
DOIs
Publication statusPublished - 1 Oct 2004

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