High production rate of crystallization process in TFA-MOD method for YBCO coated conductors

Ryo Teranishi, Sukeharu Nomoto, Junko Matsuda, Yuji Aoki, Koichi Nakaoka, Hiroshi Fuji, Yutaka Kitoh, Teruo Izumi, Yuh Shiohara, Yutaka Yamada, Akimasa Yajima

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

To realize a higher production rate is one of the important issues in the development of the long-tape processing for the YBCO coated conductors by the TFA-MOD process using the reel-to-reel system. Not only scale-up of the furnace and decrease of YBCO thickness with the higher Jc value, but higher YBCO growth rates could be effective to achieve a higher traveling rate in this system. It was confirmed that optimization of the process parameters such as high water vapor partial pressure, high diffusion constants due to a low applied total pressure, and a high gas flow rate affect the YBCO growth rate. Consequently, these higher growth rate conditions were simultaneously applied to the reel-to-reel system. As a result, the traveling rate of 1.2 m/h was achieved for fabricating YBCO films in the reel-to-reel system, which is about five times as fast as the previous traveling rate with maintaining high Ic value of higher than 200 A/cm-width by controlling above conditions.

Original languageEnglish
Pages (from-to)553-557
Number of pages5
JournalPhysica C: Superconductivity and its applications
Volume445-448
Issue number1-2
DOIs
Publication statusPublished - Oct 1 2006
Externally publishedYes

Fingerprint

Crystallization
conductors
crystallization
Steam
Vapor pressure
Partial pressure
Tapes
Water vapor
Flow of gases
Furnaces
Flow rate
Processing
vapor pressure
tapes
gas flow
furnaces
partial pressure
water vapor
flow velocity
optimization

All Science Journal Classification (ASJC) codes

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

Cite this

High production rate of crystallization process in TFA-MOD method for YBCO coated conductors. / Teranishi, Ryo; Nomoto, Sukeharu; Matsuda, Junko; Aoki, Yuji; Nakaoka, Koichi; Fuji, Hiroshi; Kitoh, Yutaka; Izumi, Teruo; Shiohara, Yuh; Yamada, Yutaka; Yajima, Akimasa.

In: Physica C: Superconductivity and its applications, Vol. 445-448, No. 1-2, 01.10.2006, p. 553-557.

Research output: Contribution to journalArticle

Teranishi, R, Nomoto, S, Matsuda, J, Aoki, Y, Nakaoka, K, Fuji, H, Kitoh, Y, Izumi, T, Shiohara, Y, Yamada, Y & Yajima, A 2006, 'High production rate of crystallization process in TFA-MOD method for YBCO coated conductors', Physica C: Superconductivity and its applications, vol. 445-448, no. 1-2, pp. 553-557. https://doi.org/10.1016/j.physc.2006.04.048
Teranishi, Ryo ; Nomoto, Sukeharu ; Matsuda, Junko ; Aoki, Yuji ; Nakaoka, Koichi ; Fuji, Hiroshi ; Kitoh, Yutaka ; Izumi, Teruo ; Shiohara, Yuh ; Yamada, Yutaka ; Yajima, Akimasa. / High production rate of crystallization process in TFA-MOD method for YBCO coated conductors. In: Physica C: Superconductivity and its applications. 2006 ; Vol. 445-448, No. 1-2. pp. 553-557.
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