Comparison between Bi-2223 tape and RE-123 coated conductor from the view point of current transport properties influencing thermal stability

Takanobu Kiss, Masayoshi Inoue, Kohei Higashikawa, Takumi Suzuki, Lin Lyu, Ken Takasaki, Kazutaka Imamura, Yuta Onodera, Dai Uetsuhara, Akira Ibi, Teruo Izumi, Hitoshi Kitaguchi

研究成果: ジャーナルへの寄稿記事

4 引用 (Scopus)

抄録

We have investigated flux flow dissipation in typical two kinds of HTS tapes, i.e., a Bi-2223 multi-filamentary tape and a RE-123 coated conductor (CC) from the view point of heat load under over current conditions. Based on systematic measurements on current-voltage characteristics, the nonlinear flux flow dissipation has been described analytically by taking into account current sharing in metallic sheath or stabilization layer. Flux flow dissipation in the RE-123 CC shows much steeper temperature dependence than that of the Bi-2223 tape. As a result, attainable cooling power becomes smaller in the RE-123 CC in comparison with that of Bi-2223 tape even if the same cooling condition. In other word, acceptable temperature rise in the RE-123 CC is small at over current condition, whereas moderate temperature dependence in the Bi-2223 tape allows stable operation even if the bias current exceeds the critical current. Influence of spatial inhomogeneity in the both HTS tapes has also been investigated. Longitudinal variation of local critical current, Ic, and its statistical behavior have been characterized by use of reel-to-reel scanning Hall probe microscopy. It has been found that the flux flow dissipation is possibly localized more than one order higher than that of the average value due to discrete local Ic drops.

元の言語英語
ページ(範囲)221-228
ページ数8
ジャーナルCryogenics
80
DOI
出版物ステータス出版済み - 12 1 2016

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Transport properties
Tapes
tapes
Thermodynamic stability
thermal stability
conductors
transport properties
dissipation
Fluxes
Critical currents
critical current
Cooling
cooling
temperature dependence
Bias currents
Current voltage characteristics
Thermal load
sheaths
Temperature
Microscopic examination

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Physics and Astronomy(all)

これを引用

Comparison between Bi-2223 tape and RE-123 coated conductor from the view point of current transport properties influencing thermal stability. / Kiss, Takanobu; Inoue, Masayoshi; Higashikawa, Kohei; Suzuki, Takumi; Lyu, Lin; Takasaki, Ken; Imamura, Kazutaka; Onodera, Yuta; Uetsuhara, Dai; Ibi, Akira; Izumi, Teruo; Kitaguchi, Hitoshi.

:: Cryogenics, 巻 80, 01.12.2016, p. 221-228.

研究成果: ジャーナルへの寄稿記事

Kiss, Takanobu ; Inoue, Masayoshi ; Higashikawa, Kohei ; Suzuki, Takumi ; Lyu, Lin ; Takasaki, Ken ; Imamura, Kazutaka ; Onodera, Yuta ; Uetsuhara, Dai ; Ibi, Akira ; Izumi, Teruo ; Kitaguchi, Hitoshi. / Comparison between Bi-2223 tape and RE-123 coated conductor from the view point of current transport properties influencing thermal stability. :: Cryogenics. 2016 ; 巻 80. pp. 221-228.
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author = "Takanobu Kiss and Masayoshi Inoue and Kohei Higashikawa and Takumi Suzuki and Lin Lyu and Ken Takasaki and Kazutaka Imamura and Yuta Onodera and Dai Uetsuhara and Akira Ibi and Teruo Izumi and Hitoshi Kitaguchi",
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AU - Kiss, Takanobu

AU - Inoue, Masayoshi

AU - Higashikawa, Kohei

AU - Suzuki, Takumi

AU - Lyu, Lin

AU - Takasaki, Ken

AU - Imamura, Kazutaka

AU - Onodera, Yuta

AU - Uetsuhara, Dai

AU - Ibi, Akira

AU - Izumi, Teruo

AU - Kitaguchi, Hitoshi

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