{ital J}{sub {ital c}} enhancement of electrophoretically deposited YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} superconducting wire by BaF{sub 2} addition

Journal Article · Mon Aug 07 00:00:00 EDT 1995 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.115526· OSTI ID:91886

Cho, S; Yao, Y T; Ketterson, J B ^[1]; Telschow, K L ^[2]

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1. Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208 (United States)
2. Idaho National Engineering Laboratory, Idaho Falls, Idaho 83415-2209 (United States)

We have prepared YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} (YBCO) superconducting wires by electrophoretic deposition. Ag wire was used as a substrate. Adding a small amount of BaF{sub 2} tends to remove cracks in the YBCO layer which develop during the heating process. The suppression of cracks produced a dramatic improvement in the critical current density ({ital J}{sub {ital c}}). At 77 K, {ital J}{sub {ital c}} increased from 18 A/cm{sup 2 }for BaF{sub 2}-free YBCO wire to 646 A/cm{sup 2 }for a critical concentration of 2.7 wt% BaF{sub 2} after which it decreased monotonically with increasing BaF{sub 2} content. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.

• Research Organization: Idaho National Engineering Lab
• DOE Contract Number: AC07-94ID13223
• OSTI ID: 91886
• Journal Information: Applied Physics Letters, Vol. 67, Issue 6; Other Information: PBD: 7 Aug 1995
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
36 MATERIALS SCIENCE
YTTRIUM OXIDES
ELECTRODEPOSITION
BARIUM OXIDES
COPPER OXIDES
HIGH-TC SUPERCONDUCTORS
SUPERCONDUCTING WIRES
FABRICATION
HEAT TREATMENTS
MICROSTRUCTURE
CRACKS
CRITICAL CURRENT