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

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.