Jun 24 – 28, 2019
Crowne Plaza Brussels Le Palace
Europe/Zurich timezone

Bi-2212 wire development at CNR-SPIN: GDG process as valid Over Pressure alternative for future high field applications

Jun 25, 2019, 3:30 PM
Klimt (Ground floor)


Ground floor

Poster Superconducting magnets & associated technologies Poster session


Alessandro Leveratto (CNR-SPIN)


The Over Pressure (OP) process led to the realization of Bi-2212 wires with Jc performance well beyond the minimum application requirements. While several efforts are under way to demonstrate that it is possible to apply such a process to real coils, researchers at CNR-SPIN are developing a process based on mechanical deformation (the GDG process) to realize denser Bi-2212 wires with superconducting properties satisfying application requirements through an easily industrially scalable process. Initial evidence of the effectiveness of the process has already been reported, but a demonstration on longer wires is needed. Here we present a comparison between the Je results obtained for short and long samples wound on different barrels. We also report a detailed analysis of the evolution of microstructural properties during the partial-melt process to obtain insights to support Jc improvement. Finally, we address the question of whether the OP process is actually needed.

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