Microstructure and crystallization mechanism of YBa2Cu3O7-y films formed by advanced TFA-MOD process

J. Matsuda; K. Nakaoka; R. Teranishi; Y. Kitoh; Y. Aoki; H. Fuji; Y. Yamada; T. Izumi; Y. Shiohara

doi:10.1016/j.physc.2006.06.008

Microstructure and crystallization mechanism of YBa₂Cu₃O_7-y films formed by advanced TFA-MOD process

J. Matsuda, K. Nakaoka, R. Teranishi, Y. Kitoh, Y. Aoki, H. Fuji, Y. Yamada, T. Izumi, Y. Shiohara

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

9 Citations (Scopus)

Abstract

We have investigated the effects of a heating rate in the calcination process on microstructures of YBa₂Cu₃O_7-y (YBCO) precursor and final films. As a result, it was found CuO segregation in the YBCO precursor film, when the precursor was prepared at a rapid heating rate in the calcination. In the case of heating this precursor film in the crystallization process, many large pores and misoriented YBCO crystals tend to remain in the YBCO final film and its I_C value deteriorates compared with the case of crystallizing the precursor, which is prepared at the slow heating rate in the calcination. It is important to control the heating rate in the calcination, in order to attain higher J_C of the YBCO final films.

Original language	English
Pages (from-to)	563-569
Number of pages	7
Journal	Physica C: Superconductivity and its applications
Volume	445-448
Issue number	1-2
DOIs	https://doi.org/10.1016/j.physc.2006.06.008
Publication status	Published - Oct 1 2006
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.2006.06.008

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title = "Microstructure and crystallization mechanism of YBa2Cu3O7-y films formed by advanced TFA-MOD process",

abstract = "We have investigated the effects of a heating rate in the calcination process on microstructures of YBa2Cu3O7-y (YBCO) precursor and final films. As a result, it was found CuO segregation in the YBCO precursor film, when the precursor was prepared at a rapid heating rate in the calcination. In the case of heating this precursor film in the crystallization process, many large pores and misoriented YBCO crystals tend to remain in the YBCO final film and its IC value deteriorates compared with the case of crystallizing the precursor, which is prepared at the slow heating rate in the calcination. It is important to control the heating rate in the calcination, in order to attain higher JC of the YBCO final films.",

author = "J. Matsuda and K. Nakaoka and R. Teranishi and Y. Kitoh and Y. Aoki and H. Fuji and Y. Yamada and T. Izumi and Y. Shiohara",

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 = "2006",

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doi = "10.1016/j.physc.2006.06.008",

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volume = "445-448",

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

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T1 - Microstructure and crystallization mechanism of YBa2Cu3O7-y films formed by advanced TFA-MOD process

AU - Matsuda, J.

AU - Nakaoka, K.

AU - Teranishi, R.

AU - Kitoh, Y.

AU - Aoki, Y.

AU - Fuji, H.

AU - Yamada, Y.

AU - Izumi, T.

AU - Shiohara, Y.

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 - 2006/10/1

Y1 - 2006/10/1

N2 - We have investigated the effects of a heating rate in the calcination process on microstructures of YBa2Cu3O7-y (YBCO) precursor and final films. As a result, it was found CuO segregation in the YBCO precursor film, when the precursor was prepared at a rapid heating rate in the calcination. In the case of heating this precursor film in the crystallization process, many large pores and misoriented YBCO crystals tend to remain in the YBCO final film and its IC value deteriorates compared with the case of crystallizing the precursor, which is prepared at the slow heating rate in the calcination. It is important to control the heating rate in the calcination, in order to attain higher JC of the YBCO final films.

AB - We have investigated the effects of a heating rate in the calcination process on microstructures of YBa2Cu3O7-y (YBCO) precursor and final films. As a result, it was found CuO segregation in the YBCO precursor film, when the precursor was prepared at a rapid heating rate in the calcination. In the case of heating this precursor film in the crystallization process, many large pores and misoriented YBCO crystals tend to remain in the YBCO final film and its IC value deteriorates compared with the case of crystallizing the precursor, which is prepared at the slow heating rate in the calcination. It is important to control the heating rate in the calcination, in order to attain higher JC of the YBCO final films.

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JO - Physica C: Superconductivity and its applications

JF - Physica C: Superconductivity and its applications

IS - 1-2

ER -

Microstructure and crystallization mechanism of YBa₂Cu₃O_7-y films formed by advanced TFA-MOD process

Abstract

All Science Journal Classification (ASJC) codes

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