Reaction of Ba2YCu3O6.9 films with yttria-stabilized zirconia substrates
- 22 August 1988
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 53 (8) , 710-712
- https://doi.org/10.1063/1.100557
Abstract
Degradation of Ba2YCu3O6.9 films on yttria‐stabilized zirconia substrates is shown to proceed by barium depletion from the film and barium zirconate formation. This process is accompanied by a decrease in the temperature of zero resistivity and ultimately produces Y2Cu2O5 and CuO. BaZrO3 is, however, found to be inert to Ba2YCu3O6.9 at 950 °C. Use of a truly chemically inert substrate material may permit extended heat treatment of films without degradation due to substrate interactions.Keywords
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