Influence of joint pressure on superconducting and mechanical properties for jointed GdBa2Cu3Oy coated conductors via precursor films

Tomohiro Miyajima, Ryo Teranishi, Syotaro Yasuyama, Yukio Sato, Kenji Kaneko, Valery Petrykin, Sergey Lee, Tatsunori Okada, Satoshi Awaji, Akiyoshi Matsumoto

Research output: Contribution to journalArticle

Abstract

There has been demand to lengthen superconducting joints of REBa2Cu3Oy coated conductors to realize magnet applications. In this work, jointed samples of GdBa2Cu3Oy coated conductors were prepared by crystallizing precursor films deposited by a pulsed laser deposition method under mechanical pressures, and influence of the pressures on superconducting and mechanical properties were investigated. While areal fraction and shearing stress of the joints were increased by increasing the pressure, superconducting properties were degraded. X-ray diffraction analysis indicated that the degradation was due to the formation of a secondary phase and decrease of oxygen contents in GdBa2Cu3Oy

Original languageEnglish
Article number050907
JournalJapanese journal of applied physics
Volume58
Issue number5
DOIs
Publication statusPublished - 2019 Jan 1

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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