Mechanism of thermal decomposition of the nonstoichiometric compound YBa2Cu3O6.8 View Full Text


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Article Info

DATE

2009-06-07

AUTHORS

Yu. V. Blinova, S. G. Titova, S. V. Sudareva, E. P. Romanov

ABSTRACT

Thermal decomposition of the nonstoichiometric high-temperature superconductor YBa2Cu3O6.8 at a temperature of 200°C in air has been investigated using the full-profile analysis of X-ray diffraction lines. Two mechanisms of decomposition are revealed. The first mechanism, i.e., separation into two phases with a different oxygen content, occurs continuously. The second mechanism, i.e., disordering of the heavy atoms Y, Ba, Ba, Y along the crystallographic axis c, begins to occur after a 20- to 35-h annealing and progresses with a further annealing. More... »

PAGES

1099-1104

Identifiers

URI

http://scigraph.springernature.com/pub.10.1134/s1063783409060018

DOI

http://dx.doi.org/10.1134/s1063783409060018

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1010466008


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