AC Transport Current Loss Characteristics of YBCO Coated Conductors Subjected to Bending Strains

Author

Kataoka, A.. ; Tsukamoto, O. ; Sekizawa, S.. ; Kawano, Y.. ; Kashima, N. ; Nagaya, S. ; Iijima, Y. ; Saitoh, T.

Author_Institution

Yokohama Nat. Univ., Kanagawa

Volume

17

Issue

2

fYear

2007

fDate

6/1/2007 12:00:00 AM

Firstpage

3171

Lastpage

3174

Abstract

Dependence of AC transport current losses on bending strains of two kinds of YBCO coated conductors (CCs) manufactured by IBAD/MOCVD and IBAD/PLD processes were investigated. The bending strains were applied to CCs samples by mounting the samples on U-shape sample holders consisted of straight and half-cylindrical sections. The bending strains to the superconductor layer were in tensile and compressive directions. The experimental results showed that the bending dependence of the AC transport current loss could be characterized by the amount of the deteriorations of the conductor critical currents dependent on structure changes of the superconductor layers due to the bending strains, regardless of the CCs manufacturing processes and the directions of the strains.

Keywords

barium compounds; bending; composite superconductors; critical currents; high-temperature superconductors; losses; yttrium compounds; AC transport current loss; YBCO coated conductor; YBaCu₂O₇; bending strain; compressive bending; conductor critical current; superconductor layer; tensile bending; Capacitive sensors; Carbon capture and storage; Conductors; Critical current; High temperature superconductors; Loss measurement; Superconducting cables; Superconducting epitaxial layers; Tensile strain; Yttrium barium copper oxide; AC transport current losses; YBCO coated conductor; bending strain;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2007.898938

Filename

4278147