Chemical durability of high-temperature superconductor YBa2Cu3O7−x in aqueous environments
- 25 January 1988
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 52 (4), 323-325
- https://doi.org/10.1063/1.99481
Abstract
The stability of YBa2Cu3O7−x in water and 100% humidity has been investigated at three temperatures using pH measurements, x-ray diffraction, and scanning electron microscopy. The oxide-ceramic superconductor is highly unstable and reacts rapidly with water and also degrades in moisture. Dissolution of the oxide perovskite in water is highly incongruent. The corrosion products are found to be BaCO3, CuO, O2, etc. Barium hydroxide is first formed which further reacts with atmospheric CO2 to form needle-shaped crystals of BaCO3. For any practical applications, devices made from these materials would have to be protected with an impermeable coating to prevent deterioration from atmosphere.Keywords
This publication has 12 references indexed in Scilit:
- Water interaction with the superconducting YBa2Cu3O7 phaseApplied Physics Letters, 1987
- ENVIRONMENTAL AND SOLVENT EFFECTS ON YTTRIUM BARIUM CUPRATE (Y1Ba2Cu3Ox)Advanced Ceramic Materials, 1987
- REACTIONS OF BARRIUM-YTTRIUM-COPPER OXIDES WITH AQUEOUS MEDIA AND THEIR APPLICATIONS IN STRUCTURAL CHARACTERIZATIONAdvanced Ceramic Materials, 1987
- Aqueous Electrochemistry of Cuprate‐Based High T c SuperconductorsJournal of the Electrochemical Society, 1987
- The room-temperature structure of the ∼90-K superconducting phase YBa2Cu3O7−xNature, 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-pressure study of the new Y-Ba-Cu-O superconducting compound systemPhysical Review Letters, 1987
- Evidence for superconductivity above 40 K in the La-Ba-Cu-O compound systemPhysical Review Letters, 1987
- Possible highT c superconductivity in the Ba?La?Cu?O systemZeitschrift für Physik B Condensed Matter, 1986