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Information × Registration Number 0218U000671, 0116U005091 , R & D reports Title Creation barrier protective layers on zirconium fuel claddings by ion-plasma methods, investigation and optimization of their characteristics in order to increase service life and preventing a catastrophic rising of accidents on present and future reactors popup.stage_title Head Bilous Vitaliy Arsentievich, Доктор технічних наук Registration Date 08-02-2018 Organization National Science Center "Kharkiv Institute of Physics and Technology popup.description2 Coatings based on chromium and its nitride, which effectively protect zirconium fuel claddings against oxidation under operating conditions and in accident conditions in water vapor are developed. The irradiation of chromium coating in a nanocrystalline state by argon ions leads to a radiation-stimulated isotropic growth of the grain size from the initial 250 nm to 295 nm at a dose of 25 dpa and radiation induced swelling, which begins with the lowest doses (5 dpa) and reaches a value of 0,66 % at a dose of 25 dpa, which occurs with the formation of vacancy voids. Annealing of samples in a vacuum at an irradiation temperature does not lead to changes in the structure of chromium coatings, which indicates their thermal stability at temperatures up to 400 °C. Thus, chromium vacuum arc coatings have high resistance to radiation swelling and can be used to protect zirconium fuel shells from oxidation under conditions of a nuclear reactor. Product Description popup.authors Білоус Віталій Арсентійович Бортницька Маргарита Олександрівна Василенко Руслан Леонидович Воєводін Віктор Миколайович Карпов Сергій Олександрович Комар Анатолій Анатолійович Копанець Ігор Євгенович Купрін Олександр Сергійович Овчаренко Валерій Давидович Ружицький Валерій Володимирович Толмачова Галина Миколаївна Толстолуцька Галина Дмітрієвна popup.nrat_date 2020-04-02 Close