The fabrication of Fe-clad MgB2 superconducting tapes was developed by using a nano-sized precursor and highly deformed Fe sheath. Quenching experiments demonstrated that the precursor fully reacted and formed MgB2 under a pressure of 600MPa provided by the deformed Fe sheath. Very good grain connections as well as a high core density of 2.55g/cm3 were thereby obtained. A high 20K JC of 3.1 x 105, 1.6 x 105 and 4.9 x 104 A/cm2 in self-field, 1 and 2T, respectively, were acquired. The results suggested that using a nano-sized precursor to fabricate MgB2 superconducting tape was a very promising process.

Densification of MgB2 Cores in Iron-Clad Tapes. H.Fang, Y.Y.Xue, Y.X.Zhou, A.Baikalov, K.Salama: Superconductor Science and Technology, 2004, 17, L27-9