Single-filament Composite MgB2/SUS Ribbons by Powder-In-Tube Process

Details Single-filament Composite MgB2/SUS Ribbons by Powder-In-Tube Process Single-filament Composite MgB2/SUS Ribbons by Powder-In-Tube Process

2001-06-07

arxiv.org/abs/cond-mat/0106124v1

Physics

Condensed Matter

Superconductivity

10 pages, 4 figures

Scientific paper

10.1016/S0921-4534(01)01299-0

We report the successful fabrication of single-filament composite MgB2/SUS ribbons, as an ultra-robust conductor type, employing the powder-in-tube (PIT) process, by swaging and cold rolling only. The remarkable transport critical current (Ic) of the non-sintered MgB2/SUS ribbon has observed, as an unexpected result. Transport critical currents Ic ~ 316 A at T = 4.2 K and Ic ~ 82 A at T = 20 K were observed at self-field, for the non-sintered composite MgB2/SUS ribbon. In addition, the persistent current density Jp values, that were estimated by Bean formula, were more than ~ 7  105 A/cm2 at T = 5 K, and ~ 1.2  105 A/cm2 at T = 30 K, for the sintered composite MgB2/SUS ribbon, at H = 0 G.

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