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Information × Registration Number 0221U106620, 0119U101668 , R & D reports Title Development of a diagnostic complex for the frictional and electrophysical nuclear power plants materials characteristics determination based on linear helium ion accelerator. Investigation of synergetic effects under bulk and surface damage of thermonuclear reactor materials: ion beam + powerful plasma flows. popup.stage_title Head Manuilenko Oleg V., Кандидат фізико-математичних наук Registration Date 16-12-2021 Organization National Science Center "Kharkiv Institute of Physics and Technology" popup.description2  The aim of the 3rd stage of the project is to study the radiation electrophysical and frictional characteristics of ceramic materials TiO2 and Al2O3, as well as diffractometric studies and studies of the microhardness of tungsten irradiated with a beam of helium ions. On a linear ion accelerator, samples of tungsten and ceramic materials Al2O3 and TiO2 were irradiated with helium ion beams with energies of 0.12 MeV and 4 MeV at temperatures of 60 and 400 oC, doses 5 ∙ 1017 - 2 ∙ 1018 ions / cm2. The report presents the results of studies of electrophysical characteristics (volumetric resistance, dielectric constant and tangent of dielectric loss angle) of irradiated TiO2 samples. Microstructural studies of the front (irradiated) and rear (non-irradiated) surfaces of the samples are presented. According to the results of microstructural studies, the coefficients of filling of the front and back sides of the samples depending on the radiation dose were calculated. Experimental dependences of total volume electrical resistances for TiO2 samples on the radiation dose are given, as well as the dependences of the dielectric constant on the dose are given. The frictional characteristics of metal - irradiated ceramics are also studied. Namely, the dependences of the sliding friction coefficient on the stroke length of the interacting samples, on the experiment time and on the number of cycles. Experimental results at an uneven mode of temperature change of friction pair metal - irradiated ceramics are presented. Diffractometric studies and studies of the microhardness of irradiated W are presented. Product Description popup.authors Dyachenko Olexandr F. Zajtsev Borys V. Kobets' Anatolij P. Soshenko Volodymyr A. popup.nrat_date 2021-12-16 Close