Large area plasma spray deposited superconducting YBa sub 2 Cu sub 3 O sub 7 thick films

Conference · Wed Jul 01 04:00:00 EDT 1987 · Advanced Ceramic Materials; (USA)

OSTI ID:5053577

Cuomo, J J; Guarnieri, C R; Shivashankar, S A; Roy, R A; Yee, D S; Rosenberg, R ^[1]

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1. IBM Thomas J. Watson Research Center, Yorktown Heights, NY (USA)

This work demonstrates the feasibility of depositing superconducting YBa{sub 2}Cu{sub 3}O{sub 7} thick films over large areas. Films of thickness ranging from 10 {mu}m to 250 {mu}m were deposited by the plasma spray process using ceramic YBa{sub 2}Cu{sub 3}O{sub 7} powder as the source material. The deposition conditions such as plasma parameters and substrate temperature, as well as post-deposition treatment of films were varied in order to obtain the superconducting oxide phase. A variety of substrate materials of various shapes were successfully coated and the crystalline structure, morphology and the electron transport characteristics in the films are reported. The phases present in the source powders, and as the deposited and annealed films was examined by x-ray diffraction. Coatings on copper substrates show a superconducting transition with the onset at 94 K, mid-point at 91 K, and completion at 84 K.

• OSTI ID: 5053577
• Report Number(s): CONF-8704372--
• Conference Information: Journal Name: Advanced Ceramic Materials; (USA) Journal Volume: 2:3B
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
ANNEALING
BARIUM COMPOUNDS
BARIUM OXIDES
CERAMICS
CHALCOGENIDES
CHARGE TRANSPORT
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL STRUCTURE
DEPOSITION
DIFFRACTION
DIMENSIONS
FILMS
HEAT TREATMENTS
MORPHOLOGY
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PLASMA ARC SPRAYING
POWDERS
SCATTERING
SPRAY COATING
SUBSTRATES
SUPERCONDUCTING FILMS
SURFACE COATING
THERMODYNAMIC PROPERTIES
THICKNESS
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
X-RAY DIFFRACTION
YTTRIUM COMPOUNDS
YTTRIUM OXIDES