Evidence for Longitudinal Homogeneity and No J e Degradation in Bi-2212 Wires Realized by the GDG Process

Luca Leoncino,Giuseppe Celentano,Sandro Chiarelli,Alessandro Leveratto,Marina Putti,Carlo Ferdeghini,Amalia Ballarino,Simon C. Hopkins,Andrea Malagoli

IEEE Transactions on Applied Superconductivity（2019）

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摘要

The GDG fabrication process developed at CNR-SPIN is a promising method for producing Bi-2212 wires without overpressure processing. In this paper, critical current measurements performed at ENEA on both short and long samples in magnetic fields up to 14 T are compared. The results show no significant difference in Je between short and long (~1 m) samples, and suggest very good longitudinal unifor...

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关键词

Wires,Critical current density (superconductivity),Current measurement,Strain,Heat treatment,Degradation,Electron tubes

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