Preparation of YBCO films on CeO₂ buffered metallic substrates by the TFA-MOD method

Biaxially aligned YBa₂Cu₃O_7-y (YBCO) coated conductors on long metallic substrates are required for power applications. Recently trifluoroacetate-metal organic deposition (TFA-MOD) has been well-known as the most prospective method for the preparation of high J_c YBCO films and it has been applied on metallic substrates. We optimized the deposition condition of the CeO₂ films on IBAD tapes and fabricated 10 cm class in-plane textured CeO₂ buffered IBAD tapes by the PLD method. We prepared YBCO films on CeO₂ buffered IBAD tapes by the TFA-MOD method. The YBCO films deposited on the buffered tapes were out of plane and in-plane aligned. The J_c value for short sample was 1.72 MA/cm² at 77 K, 0 T. These results suggest that the CeO₂ buffered IBAD tapes are feasible for the substrate for YBCO coated superconducting wire by the TFA-MOD method.