A Two-Level Undercut-Profile Substrate for Chemical-Solution-Based Filamentary Coated Conductors

Anders Christian Wulff, Jesper H. Lundeman, Jørn B. Hansen, Oleg Mishin, Zhao Yue, Roya Mohajeri, Jean-Claude Grivel

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Abstract

A recently developed two-level undercut-profile substrate (2LUPS), containing two levels of plateaus connected by a curved wall with an undercut profile, enables self-forming filaments in a coated conductor during physical line-of-sight deposition of buffer and superconducting layers. In the present study, the 2LUPS concept is applied to a commercial cube-textured Ni-5at.% W tape, and the surface of the 2LUPS coated with two Gd2Zr2O7 buffer layers using chemical solution deposition is examined. Except for narrow regions near the edge of upper plateaus, the plateaus are found to be covered by strongly textured Gd2Zr2O7 buffer layers after dip coating and sintering.
Original languageEnglish
Article number6601604
JournalI E E E Transactions on Applied Superconductivity
Volume26
Issue number3
Number of pages4
ISSN1051-8223
DOIs
Publication statusPublished - 2016

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Keywords

  • Etching
  • Scanning electron microscopy
  • Substrates
  • Superconducting filaments and wires
  • Texture

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