High critical current YBCO films using advanced TFA-MOD process

Yoshitaka Tokunaga; Hiroshi Fuji; Ryo Teranishi; Junko Matsuda; Sigenobu Asada; Atsushi Kaneko; Tetsuji Honjo; Teruo Izumi; Yuh Shiohara; Yutaka Yamada; Kiyoshi Murata; Yasuhiro Iijima; Takashi Saitoh; Tomotaka Goto; Atsuya Yoshinaka; Akimasa Yajima

doi:10.1016/j.physc.2003.12.077

High critical current YBCO films using advanced TFA-MOD process

Yoshitaka Tokunaga, Hiroshi Fuji, Ryo Teranishi, Junko Matsuda, Sigenobu Asada, Atsushi Kaneko, Tetsuji Honjo, Teruo Izumi, Yuh Shiohara, Yutaka Yamada, Kiyoshi Murata, Yasuhiro Iijima, Takashi Saitoh, Tomotaka Goto, Atsuya Yoshinaka, Akimasa Yajima

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

38 Citations (Scopus)

Abstract

As a method of the fabrication process of YBa₂Cu ₃O_7-x (YBCO) coated conductors, the metalorganic deposition (MOD) process using metal trifluoroacetates (TFA) has been considered to be a strong candidate as a low cost fabrication process for coated conductors with high J_c. In the case of the MOD process using the TFA salts for the all three elements, it requires several tens hours in the calcination process for each single coated film to minimize the generation of pores in the film. In order to shorten the calcination time, a new combination of starting materials was developed. In this study, the new heating process for these new materials has been investigated. Consequently, the calcination time was shortened to be about 17%. Also, the overall transport I_c of 292 A and the J_c value of 2.0 MA/cm² were achieved with 1.48 μm in thickness at 77 K in self-field.

Original language	English
Pages (from-to)	910-915
Number of pages	6
Journal	Physica C: Superconductivity and its applications
Volume	412-414
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physc.2003.12.077
Publication status	Published - Oct 2004
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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10.1016/j.physc.2003.12.077

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Tokunaga, Y., Fuji, H., Teranishi, R., Matsuda, J., Asada, S., Kaneko, A., Honjo, T., Izumi, T., Shiohara, Y., Yamada, Y., Murata, K., Iijima, Y., Saitoh, T., Goto, T., Yoshinaka, A., & Yajima, A. (2004). High critical current YBCO films using advanced TFA-MOD process. Physica C: Superconductivity and its applications, 412-414(SPEC. ISS.), 910-915. https://doi.org/10.1016/j.physc.2003.12.077

High critical current YBCO films using advanced TFA-MOD process. / Tokunaga, Yoshitaka; Fuji, Hiroshi; Teranishi, Ryo ; Matsuda, Junko; Asada, Sigenobu; Kaneko, Atsushi; Honjo, Tetsuji; Izumi, Teruo; Shiohara, Yuh; Yamada, Yutaka; Murata, Kiyoshi; Iijima, Yasuhiro; Saitoh, Takashi; Goto, Tomotaka; Yoshinaka, Atsuya; Yajima, Akimasa.

In: Physica C: Superconductivity and its applications, Vol. 412-414, No. SPEC. ISS., 10.2004, p. 910-915.

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

Tokunaga, Y, Fuji, H, Teranishi, R , Matsuda, J, Asada, S, Kaneko, A, Honjo, T, Izumi, T, Shiohara, Y, Yamada, Y, Murata, K, Iijima, Y, Saitoh, T, Goto, T, Yoshinaka, A & Yajima, A 2004, 'High critical current YBCO films using advanced TFA-MOD process', Physica C: Superconductivity and its applications, vol. 412-414, no. SPEC. ISS., pp. 910-915. https://doi.org/10.1016/j.physc.2003.12.077

Tokunaga, Yoshitaka ; Fuji, Hiroshi ; Teranishi, Ryo ; Matsuda, Junko ; Asada, Sigenobu ; Kaneko, Atsushi ; Honjo, Tetsuji ; Izumi, Teruo ; Shiohara, Yuh ; Yamada, Yutaka ; Murata, Kiyoshi ; Iijima, Yasuhiro ; Saitoh, Takashi ; Goto, Tomotaka ; Yoshinaka, Atsuya ; Yajima, Akimasa. / High critical current YBCO films using advanced TFA-MOD process. In: Physica C: Superconductivity and its applications. 2004 ; Vol. 412-414, No. SPEC. ISS. pp. 910-915.

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title = "High critical current YBCO films using advanced TFA-MOD process",

abstract = "As a method of the fabrication process of YBa2Cu 3O7-x (YBCO) coated conductors, the metalorganic deposition (MOD) process using metal trifluoroacetates (TFA) has been considered to be a strong candidate as a low cost fabrication process for coated conductors with high Jc. In the case of the MOD process using the TFA salts for the all three elements, it requires several tens hours in the calcination process for each single coated film to minimize the generation of pores in the film. In order to shorten the calcination time, a new combination of starting materials was developed. In this study, the new heating process for these new materials has been investigated. Consequently, the calcination time was shortened to be about 17%. Also, the overall transport Ic of 292 A and the Jc value of 2.0 MA/cm2 were achieved with 1.48 μm in thickness at 77 K in self-field.",

author = "Yoshitaka Tokunaga and Hiroshi Fuji and Ryo Teranishi and Junko Matsuda and Sigenobu Asada and Atsushi Kaneko and Tetsuji Honjo and Teruo Izumi and Yuh Shiohara and Yutaka Yamada and Kiyoshi Murata and Yasuhiro Iijima and Takashi Saitoh and Tomotaka Goto and Atsuya Yoshinaka and Akimasa Yajima",

note = "Funding Information: This work was supported by the New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity Applications.",

year = "2004",

month = oct,

doi = "10.1016/j.physc.2003.12.077",

language = "English",

volume = "412-414",

pages = "910--915",

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

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T1 - High critical current YBCO films using advanced TFA-MOD process

AU - Tokunaga, Yoshitaka

AU - Fuji, Hiroshi

AU - Teranishi, Ryo

AU - Matsuda, Junko

AU - Asada, Sigenobu

AU - Kaneko, Atsushi

AU - Honjo, Tetsuji

AU - Izumi, Teruo

AU - Shiohara, Yuh

AU - Yamada, Yutaka

AU - Murata, Kiyoshi

AU - Iijima, Yasuhiro

AU - Saitoh, Takashi

AU - Goto, Tomotaka

AU - Yoshinaka, Atsuya

AU - Yajima, Akimasa

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

PY - 2004/10

Y1 - 2004/10

N2 - As a method of the fabrication process of YBa2Cu 3O7-x (YBCO) coated conductors, the metalorganic deposition (MOD) process using metal trifluoroacetates (TFA) has been considered to be a strong candidate as a low cost fabrication process for coated conductors with high Jc. In the case of the MOD process using the TFA salts for the all three elements, it requires several tens hours in the calcination process for each single coated film to minimize the generation of pores in the film. In order to shorten the calcination time, a new combination of starting materials was developed. In this study, the new heating process for these new materials has been investigated. Consequently, the calcination time was shortened to be about 17%. Also, the overall transport Ic of 292 A and the Jc value of 2.0 MA/cm2 were achieved with 1.48 μm in thickness at 77 K in self-field.

AB - As a method of the fabrication process of YBa2Cu 3O7-x (YBCO) coated conductors, the metalorganic deposition (MOD) process using metal trifluoroacetates (TFA) has been considered to be a strong candidate as a low cost fabrication process for coated conductors with high Jc. In the case of the MOD process using the TFA salts for the all three elements, it requires several tens hours in the calcination process for each single coated film to minimize the generation of pores in the film. In order to shorten the calcination time, a new combination of starting materials was developed. In this study, the new heating process for these new materials has been investigated. Consequently, the calcination time was shortened to be about 17%. Also, the overall transport Ic of 292 A and the Jc value of 2.0 MA/cm2 were achieved with 1.48 μm in thickness at 77 K in self-field.

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High critical current YBCO films using advanced TFA-MOD process

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