Synthesis of superconducting films of the Y-Ba-Cu-O system by a screen printing method
- 19 October 1987
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 51 (16), 1277-1279
- https://doi.org/10.1063/1.98704
Abstract
A screen printing method has been used to deposit superconducting films of Y-Ba-Cu-O materials on Al2O3 substrates. The electrical resistivity, microstructure, and adhesion of these films are highly sensitive to the post-printing heat treatment. Films heat treated at 950 °C and below are poorly adherent, whereas those annealed above 1000 °C undergo phase separation to Y2Cu2O5 and BaCuO2 and also react with the substrate. Nearly single phase, highly adherent, and smooth films showing a zero resistance state at 79 K have been synthesized by optimizing the annealing conditions.Keywords
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