High performance YBCO films. Report for 25 February-25 May 1994
A Bi2O3-based glass composition was found suitable for use under typical YBCO deposition conditions, which is in a vacuum under partial oxygen pressure at about 750 deg C. It was experimently determined that a Ag capping layer thickness of about 5 microns is needed for use with this glass. This Ag thickness will prevent any degradation in the silver layer's conducting properties due to Ag/glass interaction during the glass firing operation at 640 deg C. Lanthanum aluminate samples with YBCO topped with a thin layer of strontium titanate (STO) were prepared by Neocera and had excellent YBCO surface resistance properties as measured with a dielectric resonator test system. These samples will be used to test the compatibility of the YBCO with the silver capping layer deposited over the STO.
- Research Organization:
- David Sarnoff Research Center, Princeton, NJ (United States)
- OSTI ID:
- 7071710
- Report Number(s):
- AD-A-279560/7/XAB; CNN: N00014-91-C-0216
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BARIUM OXIDES
SURFACE PROPERTIES
COPPER OXIDES
SUPERCONDUCTING FILMS
YTTRIUM OXIDES
BISMUTH OXIDES
COMPATIBILITY
GLASS
HIGH-TC SUPERCONDUCTORS
PROGRESS REPORT
STRONTIUM TITANATES
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BISMUTH COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
DOCUMENT TYPES
FILMS
OXIDES
OXYGEN COMPOUNDS
STRONTIUM COMPOUNDS
SUPERCONDUCTORS
TITANATES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
360204* - Ceramics
Cermets
& Refractories- Physical Properties