Fabrication of 10-m class Y-123 coated conductors using continuous reel-to-reel process by TFA-MOD method

Yuji Aoki, Ryo Teranishi, Yutaka Kitoh, Hiroshi Fuji, Koichi Nakaoka, Toshi Koyama, Junko S. Matuda, Teruo Izumi, Yuh Shiohara, Yoshitaka Tokunaga, Yutaka Yamada, Tomotaka Goto, Akimasa Yajima

Research output: Contribution to journalConference articlepeer-review

13 Citations (Scopus)


We have developed a reel-to-reel reaction furnace equipped with seven transverse flow modules, for the continuous TFA-MOD process. Experimental results have revealed that as the wire length increases, the processing parameters need to be adjusted in order to obtain YBCO films with high critical current density (Jc) than 1 MA/cm2 at 77 K and self-field. As a result of fabrication under the appropriate process conditions, we have successfully produced uniform tapes with a high performance in a short sample. In the recent progress, heat-treatment conditions have been optimized and the higher gas flow rate was applied to the long tape fabrication, and the I c value of higher than 100 A as the end-to-end one of a 8.5 m long tape was attained.

Original languageEnglish
Pages (from-to)945-948
Number of pages4
JournalPhysica C: Superconductivity and its applications
Issue numberII
Publication statusPublished - 2005
Externally publishedYes
EventProceedings of the 17th Internatioanl Symposium on Superconductivity (ISS 2004) Advances in Superconductivity -
Duration: Nov 23 2004Nov 25 2004

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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