Precursor composition for YBCO-based superconductors

摘要

A premixed powdery precursor composition suitable as precursor material for obtaining a coating solution for the preparation of, for instance, thin film superconductors based on YBCO 1:2:3 via a coating technique, wherein the powdery precursor composition comprises a mixture of suitable salts of the constituent elements, in particular salts of trifluoroacetate and acetate.

主权项

1. A process for preparing a powdery precursor composition for preparing a coating solution, said process comprising the steps of:
preparing a solution that is a mixture that includes only salts of RE, Ba and Cu with organic compounds, wherein RE is at least one rare earth element including Yttrium, wherein the atomic ratio of RE, Ba and Cu is 1:2:3, and wherein at least in case of Ba the organic compound contains fluorine, and removing the solvent to obtain said powdery precursor composition for preparing a coating solution suitable for storage that is subsequently dissolvable in a solution to form a coating solution for a REBa2Cu3 based superconductor.