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

Результат исследований: Материалы для журналаСтатья

1 Цитирования (Scopus)

Аннотация

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.

Язык оригиналаАнглийский
Страницы (с-по)711-714
Число страниц4
ЖурналTechnical Physics
Том49
Номер выпуска6
DOI
СостояниеОпубликовано - 1 июн 2004
Опубликовано для внешнего пользованияДа

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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