AC losses in striated YBCO coated conductors

Author

Majoros, M. ; Glowacki, B.A. ; Campbell, A.M. ; Levin, G.A. ; Barnes, P.N. ; Polak, Marcin

Author_Institution

Univ. of Cambridge, UK

Volume

15

Issue

2

fYear

2005

fDate

6/1/2005 12:00:00 AM

Firstpage

2819

Lastpage

2822

Abstract

We measured AC losses in RABiTS nonstriated as well as striated coated conductors provided by the US Air Force Research Laboratory. In addition, samples with different kinds of well defined inter-filament bridging have been measured and their losses compared with those of samples with unbridged filaments and with mono-layer samples. This bridging is designed to aid current sharing between filaments, which is advantageous, but it is necessary to determine if the effect on AC losses is detrimental. It was found that AC losses of striated samples with multiple bridges are higher than those of the samples with no bridges due to significant filament coupling but even so the losses are still substantially lower than those of a monolayer sample.

Keywords

barium compounds; discharges (electric); loss measurement; losses; superconducting materials; yttrium compounds; AC losses; RABiTS; US air force research laboratory; YBa₂Cu₃O₇; filament coupling; interfilament bridging; monolayer samples; striated YBCO coated conductors; superconductors; unbridged filaments; Bridges; Conductors; Force measurement; Hysteresis motors; Laboratories; Loss measurement; Stators; Superconducting films; Superconductivity; Yttrium barium copper oxide; AC losses; RABiTS; coated conductors; superconductors;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2005.848234

Filename

1440254