High critical current density in iron-clad MgB2 superconducting tapes was investigated. The tapes were prepared by using the standard powder-in-tube method. The starting precursor used was ultrafine Mg and B mixture powder. It was found that under a 1.5-T external magnetic field, the critical current density was 1.07×105 and 6.54×103 A/cm2 at 20 and 30K, respectively.
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)