Fabrication of long Y123 coated conductor tape by advanced TFA-MOD process

被引：2
|
作者：
Nakanishi, T.
Yoshizumi, M.
Matsuda, J.
Nakaoka, K.
Kitoh, Y.
Sutoh, Y.
Izumi, T.
Shiohara, Y.
Yamada, Y.
Goto, T.
Yajima, A.
机构：
[1] ISTEC, Superconductivity Res Lab, Koto Ku, Tokyo 1350062, Japan
[2] ISTEC, SRL, Nagoya Coated Cond Ctr, Atusta Ku, Nagoya, Aichi 4568587, Japan
[3] ADEKA Corp, Arakawa Ku, Tokyo 1168553, Japan
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2007年 / 463卷 / 515-518期
关键词：
TFA-MOD process; reel-to-reel; YBCO;
D O I：
10.1016/j.physc.2007.01.040
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Metal organic deposition (MOD) process of YBa2Cu3O7-y (YBCO) using metal trifluoro acetate (TFA) precursors is thought to be promising since YBCO films with high J(c) can be fabricated by this process inexpensively. However it is difficult to maintain high Jc throughout long tapes. We have improved I-c values and longitudinal I-c distribution for a long coated conductor tape by the advanced TFA-MOD method. It was clarified that a humid atmosphere degraded as-coated films. The Ba-poor composition precursor from the 1:23 cationic ratio improved J(c)/I-c significantly. As a result, a 86 m long coated conductor was obtained with I-c values higher than 200 A/cm-w throughout the tape except for one small region. Almost of the tape has as high Ic as 300 A/cm-w and the end-to-end I-c x L value was 14000 Am (I-c = 250 A, L = 56 m). (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：515 / 518
页数：4
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