Effect of electron irradiation on the physicochemical processes in YBa 2Cu3O6+x high-temperature ceramics

E. S. Andasbaev, F. F. Komarov, A. I. Kupchishin, A. D. Muradov, T. V. Pozdeeva

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The influence of irradiation by 2-MeV electrons at integral doses of 0.1, 0.3, 1.5, and 3.0 MGy on the physicochemical processes in YBa2Cu 3O6+x polycrystalline samples is investigated. At different stages of irradiation, processes occurring in the samples exert an opposing effect on the matrix and near-surface regions of the material. Irradiation with doses D < 1.5 MGy strengthens bonds in the intergranular spacer, which weaken because of a reduction in the potential surface barrier for oxygen migration to vacant sites. This results in ordering of the oxygen sublattice in near-surface regions. Irradiation with doses D > 1.5 MGy causes damage on the grain surface, which enhances oxygen diffusion from the bulk and, thus, leads to material degradation.

Original languageEnglish
Pages (from-to)711-714
Number of pages4
JournalTechnical Physics
Issue number6
Publication statusPublished - 1 Jun 2004
Externally publishedYes


ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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