Water Corrosion of YBa2Cu3O7−δ Superconductors |
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Authors: | Lawrence D. Fitch Vernon L. Burdick |
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Affiliation: | New York State College of Ceramics, Alfred University, Alfred, New York 14802 |
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Abstract: | 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. |
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Keywords: | superconductors yttrium barium corrosion humidity |
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