Critical current degradation behavior of 7-filamentary Ba 1−x K x Fe 2 As 2 tapes under uniaxial strain

122-type iron-based superconductors (IBS) have attracted extensive attention due to their excellent performance. The 100 m class Ba 1− x K x Fe 2 As 2 (Ba-122) 7-filamentary IBS tapes were successfully fabricated by the Institute of Electrical Engineering, Chinese Academy of Sciences. In this study,...

Full description

Saved in:
Bibliographic Details
Published in:Superconductor science & technology 2023-01, Vol.36 (1), p.15004
Main Authors: Liu, Xiao, Shi, Yi, Liu, Fang, Ma, Hongjun, Liu, Huajun, Zhou, Chao, Song, Yuntao, Gao, Jian, Zhu, Yanchang, Zhang, Xianping, Wang, Dongliang, Ma, Yanwei, Zhang, Zhan, Wei, Shaoqing, Qin, Jinggang
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:122-type iron-based superconductors (IBS) have attracted extensive attention due to their excellent performance. The 100 m class Ba 1− x K x Fe 2 As 2 (Ba-122) 7-filamentary IBS tapes were successfully fabricated by the Institute of Electrical Engineering, Chinese Academy of Sciences. In this study, we have performed tests of the 7-filamentary Ba-122 short tape samples (Ba s samples) and the 100 m class 7-filamentary Ba-122 tape samples (Ba 100 samples) under various kinds of strain using U-shaped bending spring devices. Both types of samples were still reversible even when the applied compressive strain reached −0.65%. In addition, the reversible tensile strain limit of the Ba s and Ba 100 samples were 0.25% and 0.28%, which increased to 0.38% and 0.41% after considering the effect of the cooling process.
ISSN:0953-2048
1361-6668
DOI:10.1088/1361-6668/aca4a7