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SPECTROSCOPIC STUDIES OF ATMOSPHERIC DEGRADATION OF Y-BA-CU-O SUPERCONDUCTING MATERIALS

Abstract:
Atmospheric degradation reactions of the ceramic superconducting oxides YBa2Cu3O7 and YBa2Cu4O8 and of (YBa2Cu3O7)1-xAgx (0 < x < 0.5) composites have been studied by infrared reflectance spectroscopy. Buildup of BaCO3 on the sample surfaces is accompanied by development of Reststrahlen features associated with internal modes of the carbonate ion. The rate of degradation of the YBa2Cu4O8 and the silver composites (YBa2Cu3O7)1-xAgx under exposure to water vapour saturated air is much lower than for YBa2Cu3O7 itself. © 1990.
Publication status:
Published

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Authors


CUMMINS, T More by this author
GEORGIADIS, G More by this author
Journal:
JOURNAL OF THE LESS-COMMON METALS
Volume:
164
Issue:
PART 2
Pages:
1149-1156
Publication date:
1990-10-15
DOI:
ISSN:
0022-5088
URN:
uuid:799e3555-7d1d-4c9c-9319-64d7ad0245ba
Source identifiers:
43448
Local pid:
pubs:43448
Language:
English

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