Process Induced Texturing in Ex-situ Magnesium Diboride Based Wires

Texturing plays a key role in MgB2 wires performance. One of the limits of powder in tube wires production with respect to other techniques, e.g., pulsed lased deposition, is the lack of a proper control of the grain orientation with respect to the wire main axis. In this paper we will discuss the influence of the pipe mechanical deformation on the powder texturing and the impact of the powder preparation and pre-processing on the result.