Transport properties of magnetic field/liquid assisted textured YBa/sub 2/Cu/sub 3/O/sub 7-x/ tape-cast films

Author

Lewis, J.A. ; Read, A.C. ; Holmstrom, T.K.

Author_Institution

Sci. & Technol. Centre for Superconductivity, Illinois Univ., Urbana, IL, USA

Volume

7

Issue

2

fYear

1997

fDate

6/1/1997 12:00:00 AM

Firstpage

1440

Lastpage

1442

Abstract

Textured YBa/sub 2/Cu/sub 3/O/sub 7-x/ films (thickness=250 /spl mu/m) were fabricated by tape casting in an applied magnetic field (H=6 T). Platinum (1 wt%) was incorporated to induce liquid phase-assisted densification in films fired on silver (Ag) foil to 942/spl deg/C under reduced pO2(g) conditions. The transport critical current densities (J/sub ct/) of such films exhibited nearly field insensitive behavior between H=0-3 T (H/spl par/c-axis) at 77 K, with J/sub ct/>1000 A/cm/sup 2/ at H=3 T.

Keywords

barium compounds; critical current density (superconductivity); densification; high-temperature superconductors; superconducting thin films; texture; yttrium compounds; 250 mum; 77 K; YBa/sub 2/Cu/sub 3/O/sub 7-x/ tape-cast films; YBa/sub 2/Cu/sub 3/O/sub 7/; high temperature superconductor; liquid phase-assisted densification; nearly field insensitive behavior; textured; transport critical current densities; Magnetic fields; Magnetic films; Magnetic liquids; Magnetic properties; Platinum; Silver; Superconducting films; Superconducting transition temperature; Tape casting; Thick films;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.620842

Filename

620842