The invention relates to superconductor articles, and compositions and methods for making superconductor articles. The methods can include using a precursor solution having a relatively small concentration of total free acid. The articles can include more than one layer of superconductor material in which at least one layer of superconductor material can be formed by a solution process, such as a solution process involving the use of metalorganic precursors.
This invention was made with Government support under Prime Contract No. DE-FG02-97ER82324 awarded to American Superconductor Corporation by the Department of Energy. The Government has certain rights in this invention.