Abstract
The trifluoroacetate-metal organic deposition (TFA-MOD) method has been developed as a low-cost process for a coated conductor. In this work, we employed highly in-plane textured Zr 2Gd 2O 7 (IBAD)/Hastelloy tapes. We studied the CeO 2 buffer layer deposited by pulsed laser deposition (PLD) on long Zr 2Gd 2O 7 (IBAD)/Hastelloy tapes and optimized the firing condition of the YBa 2Cu 3O 7− y (YBCO) films on CeO 2 (PLD)/Zr 2Gd 2O 7/Hastelloy tapes by TFA-MOD. We also applied multi-coat processing techniques to the YBCO films. We optimized the heat-treatment condition, resulting in a maximum I c value of 71-A/cm-width (about 0.9 MA/cm 2) at 77 K in self-field for a triple-coated film made by spin coating. The double-coated YBCO tape by a bead-coating method also had in-plane texture, and the I c and J c value were 32-A/cm-width and about 0.7 MA/cm 2, respectively.
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