Development of Multi-Filament Textured-Powder Bi-2212/Ag Wire With Enhanced Local Area Ratio uri icon

abstract

  • The performance and cost of Bi-2212/Ag wire is limited by the large fraction of silver matrix (~3:1) that is required in the oxide-powder-in-tube fabrication process. An alternative fabrication process is being developed in which fine-powder Bi-2212 is uni-axially compressed to form bars with a thin Ag foil sheath. The fine powder naturally textures (aligns the a-b planes perpendicular to the direction of compaction) with texture >80% using 200 MPa compression. A billet is formed by stacking trapezoidal-cross-section bars in a symmetric 8-12-16 pattern around a Ag rod and enclosing in a Ag-wall extrusion can. The billet is extruded and drawn to fine wire. Results are presented on present status of the development and testing.

published proceedings

  • IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY

author list (cited authors)

  • Rogers, J. S., Elliott, T., May, G. D., McIntyre, P. M., Ratcliff, C. T., & Sattarov, A.

citation count

  • 2

complete list of authors

  • Rogers, John S||Elliott, Tim||May, Gareth D||McIntyre, Peter M||Ratcliff, Christian T||Sattarov, Akhdiyor

publication date

  • August 2021