SNF Issue No. 46, February 2019
High Performance 2G-HTS REBCO Conductors with Engineering Current Density...
September 21, 2018 (STH60, HP135). We report on recent advances in MOCVD growth of REBCO films with a very high thickness that have overcome this issue, demonstrated by achieving record in-field high engineering current densities (Je) over all competing superconductor technologies and over a wide range of temperatures and fields. In this highlight, we focus on the record high in-field Je at 4.2K of >4 µm thick Zr-doped REBCO films . These results have been achieved by using an Advanced Metal Organic Chemical Vapor Deposition (A-MOCVD) system, which has been specifically developed to overcome the issue of Jc deterioration with thickness. The remarkably high Je values achieved over a wide range of applied fields at 4.2K clearly demonstrate the strong potential of REBCO coated conductors for high-field magnet application.
Fig. 1. Engineering current density vs. field of thick UH REBCO tape and other technical superconductors at 4.2 K .
Simulation and Experimental Assessment of the Electromagnetic-Thermal Behavior of an Inductive-Type Fault Current Limiter
Fig. 1. Laboratory scale prototype (dimensions in millimeters) .
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