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Information × Registration Number 0223U005498, 0122U001310 , R & D reports Title Creation of research methods and study of microstructural and electrical properties of ceramics based on SiC and TiO2 - promising materials for nuclear power plants irradiated at a linear helium ion accelerator popup.stage_title Head Manuilenko Oleh V., Кандидат фізико-математичних наукPavlii Kostiantyn V., Кандидат фізико-математичних наук Registration Date 23-12-2023 Organization National Science Center "Kharkiv Institute of Physics and Technology" popup.description2 The results of determining the elemental composition of samples of ceramic materials based on SiC and TiO2 are presented, as well as the results of numerical modeling (SRIM code) from the calculation of sputtering coefficients of samples of SiC and TiO2 ceramics when irradiated with a beam of helium ions with an energy of 0.12 and 4.0 MeV. It is shown that in samples of ceramics based on SiC, the total sputtering of silicon atoms is 1.6-1.7 times more than that of carbon atoms, and in samples of ceramics based on TiO2, the total sputtering of oxygen atoms is 3.5-3.6 times more than titanium atoms. Due to the sputtering of more silicon atoms than carbon in SiC and more sputtered oxygen atoms than titanium in TiO2, after the dissociation of SiC and TiO2, the conductivity should increase, that is, the surface electrical resistance of the irradiated sample should decrease, which was confirmed experimentally. Calculated profiles of ionization, phonon generation, atom redistribution (segregation), vacancy formation and damage (dpa), dislocation formation in SiC and TiO2 samples upon irradiation with helium ions with energies of 0.12 MeV and 4 MeV. The results of the modernization of the installation for determining the electrophysical characteristics of irradiated ceramic samples are presented. TiO2 samples were irradiated with helium ions up to doses of 1.2∙1018 ion/cm2, the results of microscopic and electrophysical studies were presented. Product Description popup.authors Zajtsev Borys V. Manuilenko Oleh V. Pavlii Kostiantyn V. Soshenko Volodymyr A. popup.nrat_date 2023-12-23 Close