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Water Corrosion of YBa 2 Cu 3 O 7−δ Superconductors
Author(s) -
Fitch Lawrence D.,
Burdick Ver L.
Publication year - 1989
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1989.tb06025.x
Subject(s) - corrosion , superconductivity , grain boundary , sintering , materials science , relative humidity , metallurgy , humidity , phase (matter) , mineralogy , microstructure , condensed matter physics , chemistry , thermodynamics , physics , organic chemistry
Solid‐state sintering was used to make YBa 2 Cu 3 O 7−δ superconducting bulk materials. Corrosion of the YBa 2 Cu 3 O 7−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 (T c ) decreased with corrosion time. After 2 h of corrosion, T c decreased from 87 to 81 K.