High Performance YBCO Films
Rept. for 25 Feb-25 May 1994
DAVID SARNOFF RESEARCH CENTER PRINCETON NJ
Pagination or Media Count:
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 layers conducting properties due to Agglass 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.
- Inorganic Chemistry
- Physical Chemistry
- Coatings, Colorants and Finishes