Texture characterization of powder-in-tube Ti/MgB2superconducting cables

MELONE, MAURO; CABRERA, ANALÍA; MALACHEVSKY, MARÍA T.; MALAMUD, FLORENCIA; VIZCAINO, PABLO; BIANCHI, DANIEL; SERQUIS, ADRIANA

Materials Today: Proceedings

Elseiver

Año: 2019 vol. 14 p. 168 - 171

2214-7853

The presence of texture in Ti sheathed MgB2 cables, induced by the manufacturing process, have been evaluated using XRD pole figures. Drawn monofilamentary and rolled multifilamentary cables have been compared in order to determine the effect of different deformation degrees arising from the thermo-mechanical treatments. Finally, the critical current density of the cables (Jc) was evaluated using a SQUID magnetometer. We found that MgB2 {100} planes align with the AD direction after drawing, while after rolling, this alignment is not present. The Jc ratio between parallel and perpendicular field is larger for the monofilamentary than for multifilamentary wires, which may be correlated with the differences in the MgB2 texture between these samples.