抄録
We have developed 100-m class YBCO conductors using reel-to-reel vacuum apparatuses for ion-beam-assisted deposition (IBAD) and pulsed-laser deposition (PLD). IBAD-Gd2Zr2O7 films 100m long were obtained with Δφ of 10°on non-textured Hastelloy tapes. Second buffer layers of Y2O3 or CeO2 that were 100m long were grown by PLD on the IBAD templates with Δφ of 7°or 5°, respectively. YBCO films were formed on a Y2O3/Gd2Zr2O7/Hastelloy substrate using PLD. An end-to-end Ic of 38 A and Jc of 0.76 MA/cm2 (77 K, self-field) were obtained in a 100m-long sample.
