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Статья
2020

Transformation of the Structure of YBa2Cu3Oy after Exposition to Acetone Vapor


I. B. BobylevI. B. Bobylev, S. V. NaumovS. V. Naumov, N. A. ZyuzevaN. A. Zyuzeva
Российский журнал физической химии А
https://doi.org/10.1134/S0036024420070079
Abstract / Full Text

The effect of the treatment with acetone vapor on the structure of YBa2Cu3Oy (123) with high (y = 6.96) and low (y = 6.3) contents of oxygen is studied at temperatures of 200–250°C. It is found that 123 is hydrated during the treatment with acetone vapor. This leads to the formation of planar stacking defects and transition of 123 to a pseudo-124 phase. It is also shown that inclusions of second phases are released, due to the reduction of copper by acetone, which (like stacking defects) can act as pinning centers and facilitate the enhancement of critical characteristics in high magnetic fields.

Author information
  • Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, 620108, Yekaterinburg, RussiaI. B. Bobylev, S. V. Naumov & N. A. Zyuzeva
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