Methods for preparing thick film rare-earth Ba.sub.2 Cu.sub.3 O.sub.7-.delta. (such as YBCO) superconductive layers, particularly including deposition of a precursor as a dispersion of solid-state materials, including a binder or a solvent or both constituents. The solid-state materials include oxides, fluorides, and acetates of yttrium, barium, and copper in the form of ultrafine particles.

Métodos para preparar as camadas superconductive rare-earth da película grossa Ba.sub.2 Cu.sub.3 O.sub.7-.delta. (tal como YBCO), particularmente including o deposition de um precursor como uma dispersão de materiais solid-state, including uma pasta ou um solvente ou ambos os constituents. Os materiais solid-state incluem óxidos, fluoretos, e acetatos do yttrium, do bário, e do cobre no formulário de partículas do ultrafine.

 
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