High critical current YBCO films using advanced TFA-MOD process

Yoshitaka Tokunaga, Hiroshi Fuji, Ryo Teranishi, Junko Matsuda, Sigenobu Asada, Atsushi Kaneko, Tetsuji Honjo, Teruo Izumi, Yuh Shiohara, Yutaka Yamada, Kiyoshi Murata, Yasuhiro Iijima, Takashi Saitoh, Tomotaka Goto, Atsuya Yoshinaka, Akimasa Yajima

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)

Abstract

As a method of the fabrication process of YBa2Cu 3O7-x (YBCO) coated conductors, the metalorganic deposition (MOD) process using metal trifluoroacetates (TFA) has been considered to be a strong candidate as a low cost fabrication process for coated conductors with high Jc. In the case of the MOD process using the TFA salts for the all three elements, it requires several tens hours in the calcination process for each single coated film to minimize the generation of pores in the film. In order to shorten the calcination time, a new combination of starting materials was developed. In this study, the new heating process for these new materials has been investigated. Consequently, the calcination time was shortened to be about 17%. Also, the overall transport Ic of 292 A and the Jc value of 2.0 MA/cm2 were achieved with 1.48 μm in thickness at 77 K in self-field.

Original languageEnglish
Pages (from-to)910-915
Number of pages6
JournalPhysica C: Superconductivity and its applications
Volume412-414
Issue numberSPEC. ISS.
DOIs
Publication statusPublished - Oct 1 2004
Externally publishedYes

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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