Wet chemical techniques for passivation of YBa sub 2 Cu sub 3 O sub 7 minus x

Conference · Thu Jan 25 04:00:00 EST 1990 · AIP Conference Proceedings (American Institute of Physics); (USA)

OSTI ID:6793723

Vasquez, R P; Hunt, B D; Foote, M C ^[1]

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1. Center for Space Microelectronics Technology, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA (USA)

Wet chemical techniques are described for treatment of YBa{sub 2}Cu{sub 3}O{sub 7{minus}{ital x}} surfaces, resulting in the formation of native compounds with little or no reactivity to water. Promising native compounds include CuI, BaSO{sub 4}, CuS, Cu{sub 2}S, YF{sub 3}, and the oxalates. Formation of surface layers on chemically-treated YBa{sub 2}Cu{sub 3}O{sub 7{minus}{ital x}} films in which these nonreactive native compounds are major constituents is verified with x-ray photoelectron spectroscopy (XPS). No significant changes are observed in the spectra when the sulfide, sulfate, or oxalate films are dipped in water, while the iodide and fluoride films show evidence of reaction with water.

• OSTI ID: 6793723
• Report Number(s): CONF-891092--
• Conference Information: Journal Name: AIP Conference Proceedings (American Institute of Physics); (USA) Journal Volume: 199:1
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
COPPER COMPOUNDS
COPPER OXIDES
CORROSION PROTECTION
ELECTRON SPECTROSCOPY
ETCHING
FILMS
HIGH-TC SUPERCONDUCTORS
OXIDES
OXYGEN COMPOUNDS
PASSIVATION
PHOTOELECTRON SPECTROSCOPY
SPECTROSCOPY
SUPERCONDUCTING FILMS
SUPERCONDUCTORS
SURFACE FINISHING
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES