Modification of titanium hydride surface with sodium borosilicate

Павленко, В. И.; Бондаренко, Геннадій Леонідович; Kuprieva, O. V.; Yastrebinskii, R. N.; Черкашина, Н. И.

doi:10.1134/s207511331405013x

Cited by 6 publications

(2 citation statements)

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“…e ratio of Portland cement and a shot of titanium hydride in the mixture was 1 : 3; the water-cement ratio was 0.3. Titanium hydride was modified by depositing a borosilicate shell on its surface [35]. e material was obtained by vibration compaction on the KV-56 stand, with a vibration frequency of 3000 counts/min.…”

Section: Methodsmentioning

confidence: 99%

“…%) and density (up to 3.8 g/cm 3 ) make it possible to effectively use titanium hydride to simultaneously attenuate both neutron and c radiation [28][29][30][31][32]. Previous reports [33][34][35][36][37][38] have shown that modification of the surface of titanium hydride shot with borosilicate coatings or ion-plasma spraying of titanium metal significantly increases its thermal stability. e creation of a modifier shell on the surface of a shot of titanium hydride prevents thermal diffusion of hydrogen into the environment and increases the initial temperature of dehydrogenation to 500°C.…”

Section: Introductionmentioning

confidence: 99%

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Radiation Resistance of a Structural Material Based on Modified Titanium Hydride

Yastrebinsky

Павленко

Karnauhov

et al. 2021

Science and Technology of Nuclear Installations

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This work investigates the radiation resistance of a structural material based on modified titanium hydride and a Portland cement in a flux of neutron and γ-radiation. An assessment of the geometric and physicomechanical properties is given, along with the surface structure of irradiated cement composites, and the phase composition of the main hydrosilicates of the hydrated cement matrix during its γ-irradiation. It is shown that the use of a shot of titanium hydride increases the radiation resistance of radiation shielding based on a cement matrix, in comparison with the unmodified shot. A composite based on a modified shot of titanium hydride retains its basic properties after γ-irradiation, at an absorbed dose of up to 10 MGy. At an absorbed dose of 2 MGy in the Portland cement matrix of a composite based on a modified shot of titanium hydride, the formation of suolunite hydrosilicates occurs. It was established using X-ray fluorescence that, in the titanium hydride, a redistribution of the electron density occurs at an absorbed dose of γ radiation of 5 MGy, caused by structural phase changes due to the ongoing dehydrogenation processes.

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Section: Methodsmentioning

confidence: 99%