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Study of change in beryllium oxide strength properties as a result of irradiation with heavy ions

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dc.contributor.author Zdorovets, M.V.
dc.contributor.author Kozlovskiy, A.L.
dc.contributor.author Borgekov, D.B.
dc.contributor.author Shlimas, D.I.
dc.date.accessioned 2023-12-05T11:17:05Z
dc.date.available 2023-12-05T11:17:05Z
dc.date.issued 2021
dc.identifier.uri http://rep.enu.kz/handle/enu/10864
dc.description.abstract The paper presents data on changes in strength properties, including data on microhardness, crack resistance, bending strength and wear of BeO ceramics as a result of irradiation with heavy accelerated ions. The following types of ions were selected as heavy ions: O2+ (28 MeV), Ar8+ (70 MeV), Kr15+ (147 MeV), Xe22+ (230 MeV). Radiation doses were 10 13 -10 15 ion/cm2 , which make it possible to assess the effect of both single defects arising from radiation, and cluster overlapping defective areas occurring at large radiation doses. During the studies carried out, it was found that an increase in the ion energy and, consequently, in the damaging ability and depth of the damaged area, leads to a sharp decrease in the strength mechanical characteristics of ceramics, which is due to an increase in defective areas in the material of the near-surface damaged layer. However, an increase in irradiation dose for all types of exposure results in an almost equilibrium decrease in strength characteristics and the same trend of change in strength characteristics. The obtained dependencies indicate that the proposed mechanisms responsible for changing the strength properties can, under certain assumptions, be extrapolated to various types of exposure to heavy ions in the energy range (25-250 MeV). ru
dc.language.iso en ru
dc.relation.ispartofseries Vol.5(3);192-199
dc.subject strength ru
dc.subject heavy ions ru
dc.subject hardness ru
dc.subject ceramics ru
dc.subject radiation damage ru
dc.title Study of change in beryllium oxide strength properties as a result of irradiation with heavy ions ru
dc.type Article ru


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