Effects of heating rate in calcination process on microstructures of Y123 precursor and final films formed by advanced TFA-MOD method

Junko S. Matsuda, Koichi Nakaoka, Yoshitaka Tokunaga, Ryo Teranishi, Satoshi Koyama, Yuji Aoki, Hiroshi Fuji, Akiraasa Yajima, Yutaka Yamada, Teruo Izumi, Yuh Shiohara

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

We have investigated the effects of heating rates in the calcination process on microstructures of Y123 precursor and final films. As a result, it was found that there is CuO segregation in the vicinity of the Y123 precursor film surface, when the precursor is prepared at a rapid heating rate in the calcination. In the case of heat-treating this precursor film in the crystallization process, many large pores and misoriented Y123 crystals tend to remain in the Y123 final film. It is important to control the heating rate in the calcination, in order to attain higher Jc of the Y123 final films.

Original languageEnglish
Pages (from-to)2652-2655
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume15
Issue number2 PART III
DOIs
Publication statusPublished - Jun 2005
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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