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Information × Registration Number 0215U004571, 0113U003968 , R & D reports Title Development of transients in the perspective fast reactor with a wave of nuclear burning and in materials of the core of reactors of the fourth generation popup.stage_title Head Bakai Alexander, Shul'ga Nikolai, Registration Date 16-06-2015 Organization National Science Center "Kharkiv Institute of Physics and Technology popup.description2 Transient changes in an active zone of the fast reactor with metal U-Pu fuel, which works in a self-supported mode of a wave of nuclear burning (WNB), were analyzed during its temporary shutdown and restart. The spatial-temporary evolution of the WNB damping process due to introduction of a tantalum absorber and the effect of the rate of absorber introduction on the process of WNB damping was investigated. The problem of restarting of the WNB mode, which consists in provision of gradual restoration of the self-consistent fuel composition and neutron flux, which answer this mode, was in details investigated. A script of stable smooth restoration of the WNB mode with the use of external neutron source in a zone of active burning was proposed. The processes of diffusion disintegration of a solid solution under a cascade producing irradiation were investigated by numerical computation. It was shown that the distribution of oxide nanoprecipitates is stable relative to an exposure to irradiation and the effect of precipitate ripening. Formation and growth of copper clusters in FeCu alloy under electron irradiation was simulated in different modes of thermal cycling. In particular, it was shown that periodic heat and cooling result in increased depletion of copper in solid solution, compared with an isothermal annealing under an irradiation. Product Description popup.authors Абизов Олександр Сергійович Білозоров Дмитро Павлович Бакай Олександр Степанович Борисенко Олександр Олексійович Давидов Леонід Миколайович Лазарєв Микола Павлович Мельник Юрій Петрович Пилипенко Володимир Владиславович Туркін Анатолій Аркадійович Фатєєв Михайло Петрович Фомін Олексій Сергійович Фомін Сергій Петрович Шаповалов Роман Володимирович Шульга Микола Федорович popup.nrat_date 2020-04-02 Close