Current Transport Properties of TFA-MOD Processed Long-Length Y x Gd 1 - x Ba 2 Cu 3 O y Coated Conductor Doped with BaZrO 3 Artificial Pinning Centers

Masayoshi Inoue, Kenta Tanaka, Kazutaka Imamura, Kohei Higashikawa, Kazunari Kimura, Yasuo Takahashi, Tsutomu Koizumi, Takayo Hasegawa, Satoshi Awaji, Kazuo Watanabe, Masateru Yoshizumi, Teruo Izumi, Takanobu Kiss

研究成果: ジャーナルへの寄稿記事

1 引用 (Scopus)

抄録

We have investigated the current transport properties of batch furnace processed TFA-MOD Y x Gd 1 - x Ba 2 Cu 3 O y (YGdBCO) coated conductor (CC) doped with nanoscale BaZrO3 artificial pinning centers (APCs). As the comparison with those of previous processed YGdBCO CC, it has been confirmed that the present process is very effective to improve current carrying performance of the CC at not only high-temperature but also low-temperature region, for example, the I c at 4.2 K and 17 T is 450 A/cm-w, i.e., the engineering J c is 4.3 × 10 8 A/m 2 , which is comparable value to that of Nb 3 Sn wire at 4.2 K. In addition, angular dependences of the I c clearly show the effectiveness of the APCs. Namely, the minimum I c in the whole angle region at 77 K, 3 T increase from 7 to 35 A/cm-w, and the anisotropy of I c is reduced. We will also discuss the analytical expression of in-field current transport property based on the percolation transition model and the scaling law of the flux pinning. By using this analysis, electric field versus current density characteristics in arbitrary conditions of temperature and magnetic field can be described, and also, the statistical distribution of J c can be estimated. These results are important not only for the design of superconducting devices using CCs but also for understanding the pinning properties.

元の言語英語
記事番号7000525
ジャーナルIEEE Transactions on Applied Superconductivity
25
発行部数3
DOI
出版物ステータス出版済み - 6 1 2015

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Transport properties
conductors
transport properties
Superconducting devices
Flux pinning
Scaling laws
superconducting devices
Furnaces
Temperature distribution
Anisotropy
Current density
flux pinning
Electric fields
Wire
Magnetic fields
statistical distributions
scaling laws
Temperature
furnaces
temperature distribution

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

これを引用

Current Transport Properties of TFA-MOD Processed Long-Length Y x Gd 1 - x Ba 2 Cu 3 O y Coated Conductor Doped with BaZrO 3 Artificial Pinning Centers . / Inoue, Masayoshi; Tanaka, Kenta; Imamura, Kazutaka; Higashikawa, Kohei; Kimura, Kazunari; Takahashi, Yasuo; Koizumi, Tsutomu; Hasegawa, Takayo; Awaji, Satoshi; Watanabe, Kazuo; Yoshizumi, Masateru; Izumi, Teruo; Kiss, Takanobu.

:: IEEE Transactions on Applied Superconductivity, 巻 25, 番号 3, 7000525, 01.06.2015.

研究成果: ジャーナルへの寄稿記事

Inoue, Masayoshi ; Tanaka, Kenta ; Imamura, Kazutaka ; Higashikawa, Kohei ; Kimura, Kazunari ; Takahashi, Yasuo ; Koizumi, Tsutomu ; Hasegawa, Takayo ; Awaji, Satoshi ; Watanabe, Kazuo ; Yoshizumi, Masateru ; Izumi, Teruo ; Kiss, Takanobu. / Current Transport Properties of TFA-MOD Processed Long-Length Y x Gd 1 - x Ba 2 Cu 3 O y Coated Conductor Doped with BaZrO 3 Artificial Pinning Centers :: IEEE Transactions on Applied Superconductivity. 2015 ; 巻 25, 番号 3.
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abstract = "We have investigated the current transport properties of batch furnace processed TFA-MOD Y x Gd 1 - x Ba 2 Cu 3 O y (YGdBCO) coated conductor (CC) doped with nanoscale BaZrO3 artificial pinning centers (APCs). As the comparison with those of previous processed YGdBCO CC, it has been confirmed that the present process is very effective to improve current carrying performance of the CC at not only high-temperature but also low-temperature region, for example, the I c at 4.2 K and 17 T is 450 A/cm-w, i.e., the engineering J c is 4.3 × 10 8 A/m 2 , which is comparable value to that of Nb 3 Sn wire at 4.2 K. In addition, angular dependences of the I c clearly show the effectiveness of the APCs. Namely, the minimum I c in the whole angle region at 77 K, 3 T increase from 7 to 35 A/cm-w, and the anisotropy of I c is reduced. We will also discuss the analytical expression of in-field current transport property based on the percolation transition model and the scaling law of the flux pinning. By using this analysis, electric field versus current density characteristics in arbitrary conditions of temperature and magnetic field can be described, and also, the statistical distribution of J c can be estimated. These results are important not only for the design of superconducting devices using CCs but also for understanding the pinning properties.",
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AU - Inoue, Masayoshi

AU - Tanaka, Kenta

AU - Imamura, Kazutaka

AU - Higashikawa, Kohei

AU - Kimura, Kazunari

AU - Takahashi, Yasuo

AU - Koizumi, Tsutomu

AU - Hasegawa, Takayo

AU - Awaji, Satoshi

AU - Watanabe, Kazuo

AU - Yoshizumi, Masateru

AU - Izumi, Teruo

AU - Kiss, Takanobu

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AB - We have investigated the current transport properties of batch furnace processed TFA-MOD Y x Gd 1 - x Ba 2 Cu 3 O y (YGdBCO) coated conductor (CC) doped with nanoscale BaZrO3 artificial pinning centers (APCs). As the comparison with those of previous processed YGdBCO CC, it has been confirmed that the present process is very effective to improve current carrying performance of the CC at not only high-temperature but also low-temperature region, for example, the I c at 4.2 K and 17 T is 450 A/cm-w, i.e., the engineering J c is 4.3 × 10 8 A/m 2 , which is comparable value to that of Nb 3 Sn wire at 4.2 K. In addition, angular dependences of the I c clearly show the effectiveness of the APCs. Namely, the minimum I c in the whole angle region at 77 K, 3 T increase from 7 to 35 A/cm-w, and the anisotropy of I c is reduced. We will also discuss the analytical expression of in-field current transport property based on the percolation transition model and the scaling law of the flux pinning. By using this analysis, electric field versus current density characteristics in arbitrary conditions of temperature and magnetic field can be described, and also, the statistical distribution of J c can be estimated. These results are important not only for the design of superconducting devices using CCs but also for understanding the pinning properties.

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