Microstructures of superconducting joint between GdBa2Cu3Oy-coated conductors via additionally deposited precursor films

Tomohiro Miyajima; Ryo Teranishi; Syotaro Yasuyama; Yukio Sato; Kenji Kaneko; Takuya Maeda; Minoru Ochi; Kazuya Hiramatsu; Miyuki Nakamura; Valery Petrykin; Sergey Lee; Tatsunori Okada; Satoshi Awaji

doi:10.7567/1347-4065/ab0f23

Microstructures of superconducting joint between GdBa₂Cu₃O_y-coated conductors via additionally deposited precursor films

Tomohiro Miyajima, Ryo Teranishi, Syotaro Yasuyama, Yukio Sato, Kenji Kaneko, Takuya Maeda, Minoru Ochi, Kazuya Hiramatsu, Miyuki Nakamura, Valery Petrykin, Sergey Lee, Tatsunori Okada, Satoshi Awaji

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

3 Citations (Scopus)

Abstract

Superconducting joints have been demanded to lengthen REBa₂Cu₃O _y -coated conductors for electrical power applications. In this study, we propose a new joint method for GdBa₂Cu₃O _y -coated conductors via crystallizing precursor films additionally deposited on the conductors. Two GdBa₂Cu₃O _y -coated conductors with precursor films were placed in a face-to-face manner in a furnace, then they were crystallized under mechanical pressure to joint them. A superconducting joint was achieved with a high critical temperature of 90.8 K. Microstructural observation by a transmission electron microscope revealed that there were only a few pores at the joint boundary without a secondary phase having c-axis-oriented GdBa₂Cu₃O _y

Original language	English
Article number	050913
Journal	Japanese journal of applied physics
Volume	58
Issue number	5
DOIs	https://doi.org/10.7567/1347-4065/ab0f23
Publication status	Published - 2019

All Science Journal Classification (ASJC) codes

Engineering(all)
Physics and Astronomy(all)

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10.7567/1347-4065/ab0f23

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Miyajima, T., Teranishi, R., Yasuyama, S., Sato, Y., Kaneko, K., Maeda, T., Ochi, M., Hiramatsu, K., Nakamura, M., Petrykin, V., Lee, S., Okada, T., & Awaji, S. (2019). Microstructures of superconducting joint between GdBa₂Cu₃O_y-coated conductors via additionally deposited precursor films. Japanese journal of applied physics, 58(5), [050913]. https://doi.org/10.7567/1347-4065/ab0f23

Microstructures of superconducting joint between GdBa₂Cu₃O_y-coated conductors via additionally deposited precursor films. / Miyajima, Tomohiro; Teranishi, Ryo; Yasuyama, Syotaro; Sato, Yukio ; Kaneko, Kenji; Maeda, Takuya; Ochi, Minoru; Hiramatsu, Kazuya; Nakamura, Miyuki; Petrykin, Valery; Lee, Sergey; Okada, Tatsunori; Awaji, Satoshi.

In: Japanese journal of applied physics, Vol. 58, No. 5, 050913, 2019.

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

Miyajima, T, Teranishi, R, Yasuyama, S, Sato, Y , Kaneko, K, Maeda, T, Ochi, M, Hiramatsu, K, Nakamura, M, Petrykin, V, Lee, S, Okada, T & Awaji, S 2019, 'Microstructures of superconducting joint between GdBa₂Cu₃O_y-coated conductors via additionally deposited precursor films', Japanese journal of applied physics, vol. 58, no. 5, 050913. https://doi.org/10.7567/1347-4065/ab0f23

Miyajima, Tomohiro ; Teranishi, Ryo ; Yasuyama, Syotaro ; Sato, Yukio ; Kaneko, Kenji ; Maeda, Takuya ; Ochi, Minoru ; Hiramatsu, Kazuya ; Nakamura, Miyuki ; Petrykin, Valery ; Lee, Sergey ; Okada, Tatsunori ; Awaji, Satoshi. / Microstructures of superconducting joint between GdBa₂Cu₃O_y-coated conductors via additionally deposited precursor films. In: Japanese journal of applied physics. 2019 ; Vol. 58, No. 5.

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abstract = "Superconducting joints have been demanded to lengthen REBa2Cu3O y -coated conductors for electrical power applications. In this study, we propose a new joint method for GdBa2Cu3O y -coated conductors via crystallizing precursor films additionally deposited on the conductors. Two GdBa2Cu3O y -coated conductors with precursor films were placed in a face-to-face manner in a furnace, then they were crystallized under mechanical pressure to joint them. A superconducting joint was achieved with a high critical temperature of 90.8 K. Microstructural observation by a transmission electron microscope revealed that there were only a few pores at the joint boundary without a secondary phase having c-axis-oriented GdBa2Cu3O y ",

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AU - Miyajima, Tomohiro

AU - Teranishi, Ryo

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AU - Sato, Yukio

AU - Kaneko, Kenji

AU - Maeda, Takuya

AU - Ochi, Minoru

AU - Hiramatsu, Kazuya

AU - Nakamura, Miyuki

AU - Petrykin, Valery

AU - Lee, Sergey

AU - Okada, Tatsunori

AU - Awaji, Satoshi

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AB - Superconducting joints have been demanded to lengthen REBa2Cu3O y -coated conductors for electrical power applications. In this study, we propose a new joint method for GdBa2Cu3O y -coated conductors via crystallizing precursor films additionally deposited on the conductors. Two GdBa2Cu3O y -coated conductors with precursor films were placed in a face-to-face manner in a furnace, then they were crystallized under mechanical pressure to joint them. A superconducting joint was achieved with a high critical temperature of 90.8 K. Microstructural observation by a transmission electron microscope revealed that there were only a few pores at the joint boundary without a secondary phase having c-axis-oriented GdBa2Cu3O y

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Microstructures of superconducting joint between GdBa₂Cu₃O_y-coated conductors via additionally deposited precursor films

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