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
This publication has 6 references indexed in Scilit:
- Phase diagram and superconductivity in the Y-Ba-Cu-O systemApplied Physics Letters, 1987
- Bulk superconductivity at 91 K in single-phase oxygen-deficient perovskitePhysical Review Letters, 1987
- Superconductivity at 93 K in a new mixed-phase Y-Ba-Cu-O compound system at ambient pressurePhysical Review Letters, 1987
- High-Tc Superconductivity of La-Ba-Cu Oxides. II. –Specification of the Superconducting PhaseJapanese Journal of Applied Physics, 1987
- Possible highT c superconductivity in the Ba?La?Cu?O systemZeitschrift für Physik B Condensed Matter, 1986
- A series of oxygen-defect perovskites containing CuII and CuIII: The oxides La3−xLnxBa3 [CuII5−2y CuIII1+2y] O14+yJournal of Solid State Chemistry, 1981