Extremely fine precipitates and flux pinning in melt-processed YBa2Cu3O(x)

摘要

Using a solid-liquid-melt-growth processing method, melt-textured 123 (YBa(sub 2)Cu(sub 3)O(sub x)) samples were produced with 211 (Y(sub 2)BaCuO(sub 5)) particles on the order of 100 (angstrom). Flux pinning was found to significantly increase up to 80 K with a large amount of these very fine 211 inclusions.