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Thermal stability of nonstoichiometric ceramic YBa2Cu3O6.8 at 200°C in a dried air

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Abstract

The behavior of the nonstoichiometric ceramic YBa2Cu3O6.8 has been investigated during annealing at a temperature of 200°C in an atmosphere excluding the penetration of water into the sample. It has been found that, under these conditions, the separation into two phases with different oxygen contents proceeds extremely weakly. The previously observed disordering of Y and Ba atoms along the crystallographic axis c occurs under the effect of the OH− group formed on the crystallite surface as a result of dissociation of water in the case of treatment in the undried atmosphere.

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Authors and Affiliations

  1. Institute of Metallurgy, Ural Branch, Russian Academy of Sciences, ul. Amundsena 101, Yekaterinburg, 620016, Russia

    S. G. Titova

  2. Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, ul. Sof’i Kovalevskoi 18, Yekaterinburg, 620990, Russia

    Yu. V. Blinova, S. V. Sudareva, I. B. Bobylev & N. A. Zyuzeva

Authors
  1. S. G. Titova
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  2. Yu. V. Blinova
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  3. S. V. Sudareva
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  4. I. B. Bobylev
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  5. N. A. Zyuzeva
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Correspondence to S. G. Titova.

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Original Russian Text © S.G. Titova, Yu.V. Blinova, S.V. Sudareva, I.B. Bobylev, N.A. Zyuzeva, 2011, published in Fizika Tverdogo Tela, 2011, Vol. 53, No. 3, pp. 427–429.

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Titova, S.G., Blinova, Y.V., Sudareva, S.V. et al. Thermal stability of nonstoichiometric ceramic YBa2Cu3O6.8 at 200°C in a dried air. Phys. Solid State 53, 455–457 (2011). https://doi.org/10.1134/S1063783411030310

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  • DOI: https://doi.org/10.1134/S1063783411030310

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