Fabrication and transport properties of Sr0.6K 0.4Fe2As2 multifilamentary superconducting wires Article

cited authors

  • Yao, C; Ma, Y; Zhang, X; Wang, D; Wang, C; Lin, H; Zhang, Q

fiu authors

abstract

  • Seven-core Ag/Fe sheathed Sr0.6K0.4Fe 2As2 (Sr-122) superconducting wires were produced by the ex situ powder-in-tube method. The relationship between the cold-work deformation process and the superconducting properties of the wires was systematically studied. It was found that flat rolling can efficiently increase the mass density of the superconducting core, thus, significantly improving the transport critical current density (Jc) of the as-drawn wires. The transport Jc of the best sample achieved 21.1 kA/cm2 at 4.2 K in self field, and showed very weak magnetic field dependence at high fields. Our result suggested a promising future of multifilamentary iron-based superconductors in practical applications. © 2013 American Institute of Physics.

publication date

  • February 25, 2013

Digital Object Identifier (DOI)

volume

  • 102

issue

  • 8