Electrodeposition on cuprate-based superconductors in nonaqueous media

Journal Article · Sat Apr 01 04:00:00 EST 1989 · J. Electrochem. Soc.; (United States)

DOI:https://doi.org/10.1149/1.2096783· OSTI ID:5914285

Rosamilia, J M; Miller, B

Electrodeposition of metallic protection layers on the Ba/sub 2/YCu/sub 3/O/sub 7/ high -T/sub c/ superconductor has been carried out in non-aqueous electrolytes based on the organic solvents acetonitrile, methanol, and propylene carbonate. By lowering the reactivity of the solvent to the strongly oxidized superconductor, the range of potential accessible to cathodic reactions can be extended. In acetonitrile, films of silver, copper, lead, and tin can be deposited, whereas in water it is difficult to achieve more than silver deposits because of the ready reduction of the cuprate compound. Electrochemical techniques with rotating disk and ring-disk electrodes in the nonaqueous electrolytes gave clear voltammetric evidence for the deposition of the metals, their anodic stripping from the substrate, and the ability to cycle the superconductor between plated and uncovered states. Optical microscopy, scanning electron micrographs, and energy dispersive x-ray measurements were used to support the conclusion of high-coverage, microcrystalline metal contacting layers being achieved on the superconductor substrate.

• Research Organization: AT and T Bell Labs., Murray Hill, NJ (USA)
• OSTI ID: 5914285
• Journal Information: J. Electrochem. Soc.; (United States), Journal Name: J. Electrochem. Soc.; (United States) Vol. 136:4; ISSN JESOA
• Country of Publication: United States
• Language: English

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75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ACETONITRILE
ALCOHOLS
ALKALINE EARTH METAL COMPOUNDS
ALKENES
BARIUM COMPOUNDS
BARIUM OXIDES
CATHODE SPUTTERING
CHALCOGENIDES
CHEMISTRY
COATINGS
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL STRUCTURE
DEPOSITION
DIFFRACTION
ELECTROCHEMISTRY
ELECTRODEPOSITION
ELECTROLYSIS
ELECTRON MICROSCOPY
HYDROCARBONS
HYDROXY COMPOUNDS
LYSIS
METHANOL
MICROSCOPY
MICROSTRUCTURE
NITRILES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
PROPYLENE
PROTECTIVE COATINGS
SCANNING ELECTRON MICROSCOPY
SCATTERING
SPUTTERING
SUPERCONDUCTORS
SURFACE COATING
TRANSITION ELEMENT COMPOUNDS
X-RAY DIFFRACTION
YTTRIUM COMPOUNDS
YTTRIUM OXIDES