Influence of thermomechanical treatment on critical currents in Ag-sheathed BSCCO-2223 tapes

BSCCO-2223 tapes have been produced by the ‘powder-in-tube’ method with reproducible critical current densities of > 1 × 10 4 A cm −2 at 77 K and 5 × 10 4 A cm −2 at 4.2 K. Superconductivity at 77 K was retained in fields o fup to 7 T. The influence of mechanical treatments (e.g. drawing, rolling...

Full description

Saved in:
Bibliographic Details
Published in:Cryogenics (Guildford) 1992, Vol.32 (11), p.1052-1055
Main Authors: Brauer, D.J., Busch, D., Eujen, R., Gladun, A., Hüdepohl, J.
Format: Article
Language:English
Subjects:
Bl(Pb)-2223 tapes
Condensed matter: electronic structure, electrical, magnetic, and optical properties
critical current densities
Exact sciences and technology
Physics
Properties of type I and type II superconductors
Superconductivity
superconductors
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:BSCCO-2223 tapes have been produced by the ‘powder-in-tube’ method with reproducible critical current densities of > 1 × 10 4 A cm −2 at 77 K and 5 × 10 4 A cm −2 at 4.2 K. Superconductivity at 77 K was retained in fields o fup to 7 T. The influence of mechanical treatments (e.g. drawing, rolling and pressing) as well as that of different annealing processes has been investigated. In addition to the determination of critical currents, a.c. shielding measurements have been used to verify the quality of intergrain contacts. The temperature dependence of j c between 4.2 and 80 K has been studied while the field ( H | c; H ⊥ c with H| or ⊥ l) was varied from 0 to 8 T.
ISSN:0011-2275
1879-2235
DOI:10.1016/0011-2275(92)90026-7