Fabrication of YBa<sub>2</sub>Cu<sub>3</sub>O<sub> y </sub> coated conductor by Vapor-Liquid-Solid growth technique using a Reel-to-Reel system

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<jats:title>Abstract</jats:title> <jats:p>To optimize the production cost of REBCO-coated conductors, the deposition rate needs to be increased. The vapour-liquid-solid (VLS) growth technique is a suitable method for fabricating a film with a high deposition rate and good crystal orientation. This technique enables growth through a liquid phase. There have been studies conducted on the fabrication of REBCO films using the VLS growth technique. However, very few studies have been performed on a system for depositing REBCO-coated conductors with VLS growth techniques while moving the substrate. In this study, we evaluate the reel-to-reel pulsed laser deposition system, pure YBCO-coated conductors, and the BHO 3 vol% doped YBCO-coated conductors, which were fabricated using the VLS growth technique under high-speed deposition conditions with an average deposition rate of 17 nm/s, achieved <jats:italic>J</jats:italic> <jats:sub>c</jats:sub> > 2.0 MA/cm<jats:sup>2</jats:sup>, <jats:italic>J</jats:italic> <jats:sub>c</jats:sub> > 1.0 MA/cm<jats:sup>2</jats:sup> at 77 K and self-field, respectively. In addition, the <jats:italic>J</jats:italic> <jats:sub>c</jats:sub> in the magnetic fields of the BaHfO<jats:sub>3</jats:sub>-doped YBCO coated conductors could be improved by introducing discontinuous BHO nanorods.</jats:p>

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