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AC Loss Properties in Bi2223 Multifilamentary Tapes with Enhanced Transverse Resistivity by Introducing Oxide Barriers

Published online by Cambridge University Press:  01 February 2011

Ryoji Inada ,
Yoshiki Mitsuno ,
Kazuma Soguchi ,
Yuichi Nakamura ,
Akio Oota ,
Chengshan Li  and
Pingxiang Zhang
Ryoji Inada
Affiliation:
inada@eee.tut.ac.jp, Toyohashi University of Technology, Department of Electrical and Electronic Engineering, 1-1 Tempaku-cho, Toyohashi, 4418580, Japan
Yoshiki Mitsuno
Affiliation:
y-mitsuno@super.eee.tut.ac.jp, Toyohashi University of Technology, Department of Electrical and Electronic Engineering, 1-1 Tempaku-cho, Toyohashi, 4418580, Japan
Kazuma Soguchi
Affiliation:
k-souguti@super.eee.tut.ac.jp, Toyohashi University of Technology, Department of Electrical and Electronic Engineering, 1-1 Tempaku-cho, Toyohashi, 4418580, Japan
Yuichi Nakamura
Affiliation:
nakamura@eee.tut.ac.jp, Toyohashi University of Technology, Department of Electrical and Electronic Engineering, 1-1 Tempaku-cho, Toyohashi, 4418580, Japan
Akio Oota
Affiliation:
oota@eee.tut.ac.jp, Toyohashi University of Technology, Department of Electrical and Electronic Engineering, 1-1 Tempaku-cho, Toyohashi, 4418580, Japan
Chengshan Li
Affiliation:
csli@c-nin.com, Northwest Institute for Nonferrous Metal Research, P.O.Box 51, Xi'an, 710016, China, People's Republic of
Pingxiang Zhang
Affiliation:
pxzhang@c-nin.com, Northwest Institute for Nonferrous Metal Research, P.O.Box 51, Xi'an, 710016, China, People's Republic of
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Abstract

Bi2223 multifilamentary tapes with enhanced transverse resistivity by introducing Ca2CuO3 and SrZrO3 as interfilamentary barriers were prepared and their AC loss properties were examined under AC external magnetic field. To improve the deformation properties of these oxide powders, 20-30wt% Bi2212 powders were mixed with them. The mixed oxide powders were introduced among the twisted Bi2223 filaments by using dip-coating method. AC loss properties under AC parallel or perpendicular field were measured and compared with the results for the tape without barriers. The loss measurements were carried out by changing both the amplitude and the frequency of external field. Based on the experimental results, the effect of barrier introduction on the loss reductions was discussed.

Keywords

superconductingoxidemagnetic properties
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1099: Symposium II – Heterostructures, Functionalization and Nanoscale Optimization in Superconductivity , 2008 , 1099-II04-07
Copyright
Copyright © Materials Research Society 2008

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