Water Corrosion of YBa2Cu3O7−δ Superconductors

Solid‐state sintering was used to make YBa2Cu3O7−δ superconducting bulk materials. Corrosion of the YBa2Cu3O7−δ superconductor material was investigated in a humid environment. The superconducting materials exhibited significant corrosion after 4 h at 80° and 100% relative humidity. A grain‐boundary...

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Bibliographic Details
Published in:Journal of the American Ceramic Society 1989-10, Vol.72 (10), p.2020-2023
Main Authors: Fitch, Lawrence D., Burdick, Vernon L.
Format: Article
Language:English
Subjects:
Applied sciences
barium
Building materials. Ceramics. Glasses
Ceramic industries
Chemical industry and chemicals
corrosion
Exact sciences and technology
humidity
superconductors
Technical ceramics
yttrium
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Summary:Solid‐state sintering was used to make YBa2Cu3O7−δ superconducting bulk materials. Corrosion of the YBa2Cu3O7−δ superconductor material was investigated in a humid environment. The superconducting materials exhibited significant corrosion after 4 h at 80° and 100% relative humidity. A grain‐boundary phase was formed, and the percent superconducting phase in the material decreased by approximately 60%. The transition temperature (Tc) decreased with corrosion time. After 2 h of corrosion, Tc decreased from 87 to 81 K.
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1151-2916.1989.tb06025.x