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Corrosion effects in Y-Ba-Cu-O ceramic superconductors

✍ Scribed by I. Kirschner; T. Trager; J. Ma´trai; T. Porjesz; J. Gyo¨rgy

Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
356 KB
Volume
153-155
Category
Article
ISSN
0921-4534

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✦ Synopsis

Effect of the change of temperature on single-phase ceramic superconducting YIBa2Cu307_ x samples has been investigated. The cooling down and heating up cycles represent a thermo-mechanical corrosion during which hair-crackings and breakings can come into being. The thermal expansion experiments result in linear and non-linear dilatation curves depending on the character of cooling and heating. The water corrosion manifests itself in fine secondary Ba(OH) 2 and BaC0~ microcrystals developing on the surfaces of basic microcrystals which form the samples.

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