Fabrication and growth mechanism of YBCO coated conductors by TFA-MOD process

T. Honjo; Y. Nakamura; R. Teranishi; Y. Tokunaga; H. Fuji; J. Shibata; S. Asada; T. Izumi; Y. Shiohara; Y. Iijima; T. Saitoh; A. Kaneko; K. Murata

doi:10.1016/S0921-4534(03)01136-5

Fabrication and growth mechanism of YBCO coated conductors by TFA-MOD process

T. Honjo, Y. Nakamura, R. Teranishi, Y. Tokunaga, H. Fuji, J. Shibata, S. Asada, T. Izumi, Y. Shiohara, Y. Iijima, T. Saitoh, A. Kaneko, K. Murata

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

58 Citations (Scopus)

Abstract

In the development for the coated conductors, the trifluoroacetates-metal organic deposition (TFA-MOD) process using the multi-coating method was applied to form thicker YBa₂Cu₃O_y (YBCO) films on the CeO₂ buffered IBAD(Zr₂Gd₂O ₇)/Hastelloy tape. As a result, in the 5 times coated film with 1.38 μm in thickness, the J_c and I_c values achieved to be 1.5 MA/cm² and 210 A, respectively. Then, we fabricated a 1 m long YBCO tape by the continuous reel-to-reel system. As a result, we confirmed the tape to be homogeneous by XRD analysis. Additionally, we report the theoretical analysis of YBCO growth during post-annealing in the TFA-MOD process considering both the diffusion in the gas boundary layer and the growth kinetics at the precursor/YBCO interface. This model reveals a basic idea of the growth mechanism to define the steady state growth rate, and could explain the experimental results. In addition, it predicts that the growth rate could be estimated from the partial pressure of the water vapor of the inlet gas.

Original language	English
Pages (from-to)	873-881
Number of pages	9
Journal	Physica C: Superconductivity and its applications
Volume	392-396
Issue number	PART 2
DOIs	https://doi.org/10.1016/S0921-4534(03)01136-5
Publication status	Published - Oct 2003
Externally published	Yes
Event	Proceedings of the 15th International Symposium on Superconduc - Yokohama, Japan Duration: Nov 11 2002 → Nov 13 2002

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/S0921-4534(03)01136-5

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Honjo, T., Nakamura, Y., Teranishi, R., Tokunaga, Y., Fuji, H., Shibata, J., Asada, S., Izumi, T., Shiohara, Y., Iijima, Y., Saitoh, T., Kaneko, A., & Murata, K. (2003). Fabrication and growth mechanism of YBCO coated conductors by TFA-MOD process. Physica C: Superconductivity and its applications, 392-396(PART 2), 873-881. https://doi.org/10.1016/S0921-4534(03)01136-5

Honjo, T, Nakamura, Y, Teranishi, R, Tokunaga, Y, Fuji, H, Shibata, J, Asada, S, Izumi, T, Shiohara, Y, Iijima, Y, Saitoh, T, Kaneko, A & Murata, K 2003, 'Fabrication and growth mechanism of YBCO coated conductors by TFA-MOD process', Physica C: Superconductivity and its applications, vol. 392-396, no. PART 2, pp. 873-881. https://doi.org/10.1016/S0921-4534(03)01136-5

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title = "Fabrication and growth mechanism of YBCO coated conductors by TFA-MOD process",

abstract = "In the development for the coated conductors, the trifluoroacetates-metal organic deposition (TFA-MOD) process using the multi-coating method was applied to form thicker YBa2Cu3Oy (YBCO) films on the CeO2 buffered IBAD(Zr2Gd2O 7)/Hastelloy tape. As a result, in the 5 times coated film with 1.38 μm in thickness, the Jc and Ic values achieved to be 1.5 MA/cm2 and 210 A, respectively. Then, we fabricated a 1 m long YBCO tape by the continuous reel-to-reel system. As a result, we confirmed the tape to be homogeneous by XRD analysis. Additionally, we report the theoretical analysis of YBCO growth during post-annealing in the TFA-MOD process considering both the diffusion in the gas boundary layer and the growth kinetics at the precursor/YBCO interface. This model reveals a basic idea of the growth mechanism to define the steady state growth rate, and could explain the experimental results. In addition, it predicts that the growth rate could be estimated from the partial pressure of the water vapor of the inlet gas.",

author = "T. Honjo and Y. Nakamura and R. Teranishi and Y. Tokunaga and H. Fuji and J. Shibata and S. Asada and T. Izumi and Y. Shiohara and Y. Iijima and T. Saitoh and A. Kaneko and K. Murata",

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 15th International Symposium on Superconduc ; Conference date: 11-11-2002 Through 13-11-2002",

year = "2003",

month = oct,

doi = "10.1016/S0921-4534(03)01136-5",

language = "English",

volume = "392-396",

pages = "873--881",

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

issn = "0921-4534",

publisher = "Elsevier B.V.",

number = "PART 2",

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TY - JOUR

T1 - Fabrication and growth mechanism of YBCO coated conductors by TFA-MOD process

AU - Honjo, T.

AU - Nakamura, Y.

AU - Teranishi, R.

AU - Tokunaga, Y.

AU - Fuji, H.

AU - Shibata, J.

AU - Asada, S.

AU - Izumi, T.

AU - Shiohara, Y.

AU - Iijima, Y.

AU - Saitoh, T.

AU - Kaneko, A.

AU - Murata, K.

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 - 2003/10

Y1 - 2003/10

N2 - In the development for the coated conductors, the trifluoroacetates-metal organic deposition (TFA-MOD) process using the multi-coating method was applied to form thicker YBa2Cu3Oy (YBCO) films on the CeO2 buffered IBAD(Zr2Gd2O 7)/Hastelloy tape. As a result, in the 5 times coated film with 1.38 μm in thickness, the Jc and Ic values achieved to be 1.5 MA/cm2 and 210 A, respectively. Then, we fabricated a 1 m long YBCO tape by the continuous reel-to-reel system. As a result, we confirmed the tape to be homogeneous by XRD analysis. Additionally, we report the theoretical analysis of YBCO growth during post-annealing in the TFA-MOD process considering both the diffusion in the gas boundary layer and the growth kinetics at the precursor/YBCO interface. This model reveals a basic idea of the growth mechanism to define the steady state growth rate, and could explain the experimental results. In addition, it predicts that the growth rate could be estimated from the partial pressure of the water vapor of the inlet gas.

AB - In the development for the coated conductors, the trifluoroacetates-metal organic deposition (TFA-MOD) process using the multi-coating method was applied to form thicker YBa2Cu3Oy (YBCO) films on the CeO2 buffered IBAD(Zr2Gd2O 7)/Hastelloy tape. As a result, in the 5 times coated film with 1.38 μm in thickness, the Jc and Ic values achieved to be 1.5 MA/cm2 and 210 A, respectively. Then, we fabricated a 1 m long YBCO tape by the continuous reel-to-reel system. As a result, we confirmed the tape to be homogeneous by XRD analysis. Additionally, we report the theoretical analysis of YBCO growth during post-annealing in the TFA-MOD process considering both the diffusion in the gas boundary layer and the growth kinetics at the precursor/YBCO interface. This model reveals a basic idea of the growth mechanism to define the steady state growth rate, and could explain the experimental results. In addition, it predicts that the growth rate could be estimated from the partial pressure of the water vapor of the inlet gas.

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JO - Physica C: Superconductivity and its applications

JF - Physica C: Superconductivity and its applications

IS - PART 2

T2 - Proceedings of the 15th International Symposium on Superconduc

Y2 - 11 November 2002 through 13 November 2002

ER -

Fabrication and growth mechanism of YBCO coated conductors by TFA-MOD process

Abstract

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