Development of superconducting electrode capacitor using a YBa sub 2 Cu sub 3 O sub 7 minus x thick film and Y sub 2 BaCuO sub 5 dielectric

Conference · Fri Mar 01 00:00:00 EST 1991 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:5690379

Jones, W K; Olmedo, R A; Hu, Z Q; Larkins, G Jr ^[1]

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1. Mechanical and Electrical Engineering Dept., Florida International Univ., Miami, FL (US)

Different phases in the YO{sub 1.5}-BaO-CuO phase diagram were evaluated for dielectric properties and compatibility with subsequent firing of a YBa{sub 2}Cu{sub 3}O{sub 7{minus}x} thick film. Y{sub 2}BaCuO{sub 5} (211) was chosen for capacitor manufacture because it showed no reaction with the YBa{sub 2}Cu{sub 3}O{sub 7{minus}x} (123) thick film upon sintering. AC field exclusion confirmed that superconductivity of the 123 thick film on the 211 substrate with T{sub c} at 93{degrees}K. Scanning electron microscopy of the interface between the 211 substrate and the 123 thick film showed neither a reaction or the formation of a third phase. Capacitor samples were manufactured in various sizes. The authors of this paper conclude that 211 substrates are suitable for the formation of a low-loss capacitor with superconducting electrodes.

• OSTI ID: 5690379
• Report Number(s): CONF-900944-; CODEN: IEMGA
• Journal Information: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States), Vol. 27:2; Conference: 1990 applied superconductivity conference, Snowmass, CO (United States), 24-28 Sep 1990; ISSN 0018-9464
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
36 MATERIALS SCIENCE
BARIUM OXIDES
DIELECTRIC PROPERTIES
PHASE DIAGRAMS
CAPACITORS
FABRICATION
SUPERCONDUCTIVITY
COPPER OXIDES
YTTRIUM OXIDES
ELECTRON MICROSCOPY
FILMS
IMPEDANCE
INTERFACES
PHASE STUDIES
SINTERING
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
DIAGRAMS
ELECTRIC CONDUCTIVITY
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
EQUIPMENT
MICROSCOPY
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
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