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

T. Nakanishi; M. Yoshizumi; J. Matsuda; K. Nakaoka; Y. Kitoh; Y. Sutoh; T. Izumi; Y. Shiohara; Y. Yamada; T. Goto; A. Yajima

doi:10.1016/j.physc.2007.01.040

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

T. Nakanishi, M. Yoshizumi, J. Matsuda, K. Nakaoka, Y. Kitoh, Y. Sutoh, T. Izumi, Y. Shiohara, Y. Yamada, T. Goto, A. Yajima

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

Metal organic deposition (MOD) process of YBa₂Cu₃O_7-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 J_c 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 1:2:3 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 I_c as 300 A/cm-w and the end-to-end I_c × L value was 14 000 Am (I_c = 250 A, L = 56 m).

Original language	English
Pages (from-to)	515-518
Number of pages	4
Journal	Physica C: Superconductivity and its applications
Volume	463-465
Issue number	SUPPL.
DOIs	https://doi.org/10.1016/j.physc.2007.01.040
Publication status	Published - Oct 1 2007
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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Fabrication of long Y123 coated conductor tape by advanced TFA-MOD process. / Nakanishi, T.; Yoshizumi, M.; Matsuda, J.; Nakaoka, K.; Kitoh, Y.; Sutoh, Y.; Izumi, T.; Shiohara, Y.; Yamada, Y.; Goto, T.; Yajima, A.

In: Physica C: Superconductivity and its applications, Vol. 463-465, No. SUPPL., 01.10.2007, p. 515-518.

Research output: Contribution to journal › Article › peer-review

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title = "Fabrication of long Y123 coated conductor tape by advanced TFA-MOD process",

abstract = "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).",

author = "T. Nakanishi and M. Yoshizumi and J. Matsuda and K. Nakaoka and Y. Kitoh and Y. Sutoh and T. Izumi and Y. Shiohara and Y. Yamada and T. Goto and A. Yajima",

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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.

PY - 2007/10/1

Y1 - 2007/10/1

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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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