Variación de las propiedades superconductoras de cables de MgB2 en las diferentes etapas de trefilado

R. F. LUCCAS; ET AL.

Rosario

Jornada; XI Jornada de Ciencia y Tecnología UNR; 2017

Universidad Nacional de Rosario

Pinning of vortices is a field of great interest for applications of superconductivity. The ability of avoiding vortex movement is directly related to avoiding dissipation of energy in the material. Natural and artificial defects are able to work as pinning centers for vortices in superconductors. In that way, the study of different kind of defects like impurity inclusions, segregated phases or grain boundaries is important from an application point of view.In this work we present a study of the grain size of MgB2 as the precursor material for superconductor cables. We compared particles of the precursor before and after the drawing and analyzed how microstructure changes in function of it. The role of the grain size and their possible consequences is also discussed. Cases for several configurations are compared.