TITLE

Synthesis of superconducting films of the Y-Ba-Cu-O system by a screen printing method

AUTHOR(S)
Budhani, R. C.; Tzeng, Sing-Mo H.; Doerr, H. J.; Bunshah, R. F.
PUB. DATE
October 1987
SOURCE
Applied Physics Letters;10/19/1987, Vol. 51 Issue 16, p1277
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
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.
ACCESSION #
9824506

 

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