TY - JOUR
T1 - Fabrication of long Y123 coated conductor tape by advanced TFA-MOD process
AU - Nakanishi, T.
AU - Yoshizumi, M.
AU - Matsuda, J.
AU - Nakaoka, K.
AU - Kitoh, Y.
AU - Sutoh, Y.
AU - Izumi, T.
AU - Shiohara, Y.
AU - Yamada, Y.
AU - Goto, T.
AU - Yajima, A.
N1 - Funding Information:
This work was supported by the New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity Applications. Also, the author thanks the Japan Society for the Promotion of Science for their support.
PY - 2007/10/1
Y1 - 2007/10/1
N2 - 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 Jc can be fabricated by this process inexpensively. However it is difficult to maintain high Jc throughout long tapes. We have improved Ic values and longitudinal Ic 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 1:2:3 cationic ratio improved Jc/Ic significantly. As a result, a 86 m long coated conductor was obtained with Ic 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 Ic × L value was 14 000 Am (Ic = 250 A, L = 56 m).
AB - 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 Jc can be fabricated by this process inexpensively. However it is difficult to maintain high Jc throughout long tapes. We have improved Ic values and longitudinal Ic 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 1:2:3 cationic ratio improved Jc/Ic significantly. As a result, a 86 m long coated conductor was obtained with Ic 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 Ic × L value was 14 000 Am (Ic = 250 A, L = 56 m).
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U2 - 10.1016/j.physc.2007.01.040
DO - 10.1016/j.physc.2007.01.040
M3 - Article
AN - SCOPUS:34548480981
VL - 463-465
SP - 515
EP - 518
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - SUPPL.
ER -