MO observation on YBa2Cu3O7-δ coated conductors obtained by TFA-MOD technique

Takato Machi; Junko Matsuda; Noriko Chikumoto; Izumi Hirabayashi; Yoshitaka Tokunaga; Yutaka Kitoh; Yuji Aoki; Teruo Izumi

doi:10.1016/j.physc.2005.02.159

MO observation on YBa₂Cu₃O_7-δ coated conductors obtained by TFA-MOD technique

Takato Machi, Junko Matsuda, Noriko Chikumoto, Izumi Hirabayashi, Yoshitaka Tokunaga, Yutaka Kitoh, Yuji Aoki, Teruo Izumi

Research output: Contribution to journal › Conference article › peer-review

1 Citation (Scopus)

Abstract

We have observed the flux penetration into a high-T_c superconducting YBa₂Cu₃O_7-δ (YBCO) tape by a magneto-optical (MO) imaging technique in order to feed back to the R&D of processing. The MO images of YBCO coated conductor prepared by metal organic deposition using trifluoroacetates (TFA-MOD) showed many weak links such as periodic defect and other serious defects, which were corresponding to the dispersion of critical current along to length direction. Since the combination study of MO imaging with TEM observation revealed the reason of such defects, we could feed back to several processes. The new TFA-MOD tapes prepared by using an advanced process after using many innovations showed a homogeneous flux penetration observed by MO imaging, and then it is confirmed that the process went to higher stage rather than previous one.

Original language	English
Pages (from-to)	1078-1082
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	426-431
Issue number	II
DOIs	https://doi.org/10.1016/j.physc.2005.02.159
Publication status	Published - 2005
Externally published	Yes
Event	Proceedings of the 17th Internatioanl Symposium on Superconductivity (ISS 2004) Advances in Superconductivity - Duration: Nov 23 2004 → Nov 25 2004

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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10.1016/j.physc.2005.02.159

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@article{fd957f05b211462185140d20ecf41782,

title = "MO observation on YBa2Cu3O7-δ coated conductors obtained by TFA-MOD technique",

abstract = "We have observed the flux penetration into a high-Tc superconducting YBa2Cu3O7-δ (YBCO) tape by a magneto-optical (MO) imaging technique in order to feed back to the R&D of processing. The MO images of YBCO coated conductor prepared by metal organic deposition using trifluoroacetates (TFA-MOD) showed many weak links such as periodic defect and other serious defects, which were corresponding to the dispersion of critical current along to length direction. Since the combination study of MO imaging with TEM observation revealed the reason of such defects, we could feed back to several processes. The new TFA-MOD tapes prepared by using an advanced process after using many innovations showed a homogeneous flux penetration observed by MO imaging, and then it is confirmed that the process went to higher stage rather than previous one.",

author = "Takato Machi and Junko Matsuda and Noriko Chikumoto and Izumi Hirabayashi and Yoshitaka Tokunaga and Yutaka Kitoh and Yuji Aoki and Teruo Izumi",

note = "Funding Information: This work is supported by the New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity Applications.; Proceedings of the 17th Internatioanl Symposium on Superconductivity (ISS 2004) Advances in Superconductivity ; Conference date: 23-11-2004 Through 25-11-2004",

year = "2005",

doi = "10.1016/j.physc.2005.02.159",

language = "English",

volume = "426-431",

pages = "1078--1082",

journal = "Physica C: Superconductivity and its applications",

issn = "0921-4534",

publisher = "Elsevier B.V.",

number = "II",

}

TY - JOUR

T1 - MO observation on YBa2Cu3O7-δ coated conductors obtained by TFA-MOD technique

AU - Machi, Takato

AU - Matsuda, Junko

AU - Chikumoto, Noriko

AU - Hirabayashi, Izumi

AU - Tokunaga, Yoshitaka

AU - Kitoh, Yutaka

AU - Aoki, Yuji

AU - Izumi, Teruo

N1 - Funding Information: This work is supported by the New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity Applications.

PY - 2005

Y1 - 2005

N2 - We have observed the flux penetration into a high-Tc superconducting YBa2Cu3O7-δ (YBCO) tape by a magneto-optical (MO) imaging technique in order to feed back to the R&D of processing. The MO images of YBCO coated conductor prepared by metal organic deposition using trifluoroacetates (TFA-MOD) showed many weak links such as periodic defect and other serious defects, which were corresponding to the dispersion of critical current along to length direction. Since the combination study of MO imaging with TEM observation revealed the reason of such defects, we could feed back to several processes. The new TFA-MOD tapes prepared by using an advanced process after using many innovations showed a homogeneous flux penetration observed by MO imaging, and then it is confirmed that the process went to higher stage rather than previous one.

AB - We have observed the flux penetration into a high-Tc superconducting YBa2Cu3O7-δ (YBCO) tape by a magneto-optical (MO) imaging technique in order to feed back to the R&D of processing. The MO images of YBCO coated conductor prepared by metal organic deposition using trifluoroacetates (TFA-MOD) showed many weak links such as periodic defect and other serious defects, which were corresponding to the dispersion of critical current along to length direction. Since the combination study of MO imaging with TEM observation revealed the reason of such defects, we could feed back to several processes. The new TFA-MOD tapes prepared by using an advanced process after using many innovations showed a homogeneous flux penetration observed by MO imaging, and then it is confirmed that the process went to higher stage rather than previous one.

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U2 - 10.1016/j.physc.2005.02.159

DO - 10.1016/j.physc.2005.02.159

M3 - Conference article

AN - SCOPUS:25644459942

SN - 0921-4534

VL - 426-431

SP - 1078

EP - 1082

JO - Physica C: Superconductivity and its applications

JF - Physica C: Superconductivity and its applications

IS - II

T2 - Proceedings of the 17th Internatioanl Symposium on Superconductivity (ISS 2004) Advances in Superconductivity

Y2 - 23 November 2004 through 25 November 2004

ER -

MO observation on YBa₂Cu₃O_7-δ coated conductors obtained by TFA-MOD technique

Abstract

All Science Journal Classification (ASJC) codes

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