Corrosion of superconductors-especially of YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta// cuprate
作者： M. Regier , E. Keskin , J. Halbritter
DOI: 10.1109/77.784949
关键词: Quaternary compound 、 Cuprate 、 Temperature cycling 、 Scanning electron microscope 、 High-temperature superconductivity 、 Superconductivity 、 Corrosion 、 Materials science 、 Analytical chemistry 、 Sheet resistance
摘要: Electronic properties of superconductors deteriorate with time by oxidation or other chemical attack enforced thermal cycling. Despite being oxides, cuprate in lab atmosphere. The corrosion of, e.g., YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta// (YBCO) is mainly caused H/sub 2/O and CO/sub 2/, which react to Ba-hydroxide Ba-carbonate. As reaction paths the CuO-chain-BaO-layers are fastest ones, whereas out-of-plane slower. Grain twin boundaries strain have been identified as for O-diffusion 2/.
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