Impact of high growth rates on the microstructure and vortex pinning of high-temperature superconducting coated conductors

Progress in superconducting REBa2Cu3O7 (RE = rare earth) coated conductors derived from fluorinated solutions

“…Summarizing, a steady progress in understanding the nucleation, growth and oxygenation stages of REBCO films preparation has been made in recent years which has been effectively used to improve the performance of CCs and technical substrates like sapphire. An important issue which still requires further progress is to develop procedures to increase the REBCO film growth rate in order to enhance the throughput in film manufacturing and so keep a strong competitiveness with other techniques where the growth rate is continuously increasing [8].…”

“…Of course, the acceptable figure of merit will differ for each application and also the selected working conditions and also other performances will also influence the acceptability of the conductors. Overall, it is clear that the R&D effort must be directed towards reducing this figure of merit as much as possible by reducing the production costs and enhancing the performance (figure 1) [7,8].…”

“…A non-exhaustive list of the most relevant issues to be considered are included which apply for coated conductors processed by chemical solution deposition (CSD), although not all of them are tackled in the review. manufacturing technique provided that performance, throughput and yield can be enhanced at industrial scale [8].…”

“…Particularly, it has been recently shown that the so called CSD-TLAG technique benefits from the developments previously made in the conventional fluorinated CSD route to CCs but goes well beyond its practical limitations. The REBCO growth route fully differs because intermediate transient liquids are used to grow the films and so the growth rate can be enhanced by three orders of magnitude [8,50]. The fluorine-free metalorganic precursors have also been used to fabricate superconducting joints between REBCO CCs [51,52].…”

A review of vortex pinning in REBa2Cu3O7‐x coated conductors

“…REBa 2 Cu 3 O 7-x (REBCO, where RE denotes rare earth elements) coated conductors (CCs) have a high critical transition temperature, robust current capacity, expansive irreversible field, and formidable mechanical strength. [1][2][3] These attributes herald a broad spectrum of potential applications in sectors such as electrical power, energy, high magnetic fields, and magnetic levitation transport, positioning REBCO as the leading candidate for widespread high-temperature superconducting technology implementation. Furthermore, the suitability of REBCO for high magnetic field environments makes it an ideal material for advanced applications in fusion reactors, particle accelerators, and nuclear magnetic resonance imaging systems.…”