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Alternating magnetic field losses in high-Tc superconducting multifilament tapes with a mixed matrix of Ag and BaZrO3 by K. Kwasnitza; St. Clerc; R. Flükiger; Y.B. Huang is a Physics and Astronomy article available to read on EtoBox.

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Alternating magnetic field losses for the new Bi, Pb Sr Ca Cu O multifilament tapes with a mixed Ag-BaZrO 2 2 2 3 10 3 matrix for coupling loss reduction have been measured at 77 K and at frequencies up to 100 Hz. Due to the presence of oxide barriers around the filaments, the effective transverse electrical resistivity in the matrix is increased by a factor of eight, with a corresponding modification of the frequency dependence of the coupling losses. This result is a very promising step in the development of low loss high-T superconductors for 50 Hz applications. For larger D B values, it seems feasible c to reduce the coupling losses at 50 Hz to a tolerable level by both, applying high-resistive barriers and changing the conductor dimensions, away from the extremely flat tape geometry. A saturation loss criterion is derived for twisted flat multifilament tapes. q 1998 Elsevier Science B.V.

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Author

K. Kwasnitza; St. Clerc; R. Flükiger; Y.B. Huang

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0921-4534)

Published

1998

Language

EN

Field

Physics and Astronomy (Physical Sciences)