Preparation of YBCO coated conductor by the TFA-MOD method

The MOD method is well known as a low-cost process for a coated conductor. We have manufactured long-length YBCO coated conductors by the TFA-MOD process using various metallic tapes. In this work, we applied a continuous coating technique, a so-called bead-coating process, to prepare YBCO precursor films on CeO/sub 2/ (PLD)/ Zr/sub 2/Gd/sub 2/O/sub 7/ (IBAD)/ Hastelloy tapes. The YBCO films prepared by this process reveal high in-plane crystal alignment after an appropriate heat treatment. The double-coated 10 cm-long YBCO films made by the bead-coating process exhibit maximum I/sub c/ and J/sub c/ values of 25 A/cm-width and 0.5 MA/cm/sup 2/, respectively. We also deposited oxide buffer layers on {100}<001> Ni tapes using the MOD method to make low-cost YBCO tapes by a so-called All-MOD process. We observed highly in plane textured CeO/sub 2/, and RE/sub 2/O/sub 3/ (RE = Gd, Y, Yb) using MOD method. The YBCO films were coated by the TFA-MOD on the CeO/sub 2/ (MOD) buffer layer. YBCO films were highly in-plane textured on CeO/sub 2/ (MOD)/cube-textured Ni tapes. The FWHM values of the CeO/sub 2/ and YBCO were 10.4 degrees and 11.0 degrees, respectively.