High-J c YBCO Conductors Fabricated By Magnetron Deposition
NEW METHODS, MECHANISMS AND MODELS OF VAPOR DEPOSITION(2011)
摘要
Superconducting YBCO/YSZ/Hastelloy tapes or coated conductors were fabricated by combining ion beam assisted deposition (ILBAD) and magnetron sputtering techniques. The degree of biaxial alignment of the YSZ buffer layers and the epitaxial YBCO films was determined from x-ray pole figures and ø-scans. The best YSZ buffer layers had FWHFM δø= 7°- 10°. The corresponding YBCO tapes achieved a similar degree of biaxial alignment and high critical current density, J c (77K,0T) = (0.9 - l.25)×10 6 A cm −2 .
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