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

研究成果: Contribution to journalArticle査読

9 被引用数 (Scopus)

抄録

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.

本文言語英語
ページ(範囲)563-569
ページ数7
ジャーナルPhysica C: Superconductivity and its applications
445-448
1-2
DOI
出版ステータス出版済み - 10 1 2006
外部発表はい

All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • エネルギー工学および電力技術
  • 電子工学および電気工学

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