High-Energy Tritium Ion and α-Particle Release from the Near-Surface Layer of Lithium During Neutron Irradiation in the Nuclear Reactor Core

Batyrbekov, Erlan; Khasenov, Mendykhan; Skakov, Mazhyn; Gordienko, Yuriy; Samarkhanov, Kuanysh; Kotlyar, Andrey; Miller, Alexandr; Bochkov, Vadim

doi:10.1080/15361055.2023.2229682

Cited by 1 publication

(1 citation statement)

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“…Promoting the utilization of nuclear and thermonuclear energy, and elevating their contribution in the energy sector, offers solutions to a range of challenges, addressing not just energy deficits but also contributing to environmental enhancements-a pivotal objective for future generations. To obtain tritium, which is used as one of the most promising types of fuel for maintaining thermonuclear reactions, lithium-containing ceramics based on titanates, zirconates, or orthosilicates are used, the use of which makes it possible to obtain tritium through nuclear reactions of lithium with neutrons [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Study of the Surface-Layer Softening Effects in xLi2ZrO3–(1−x)Li4SiO4 Ceramics under Irradiation with He2+ Ions

Shlimas,

Borgekov,

Kadyrzhanov

et al. 2024

Ceramics

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The study investigates alterations in the mechanical and thermophysical properties of ceramics composed of xLi2ZrO3–(1−x)Li4SiO4 as radiation damage accumulates, mainly linked to helium agglomeration in the surface layer. This research is motivated by the potential to develop lithium-containing ceramics characterized by exceptional strength properties and a resistance to the accumulation of radiation damage and ensuing deformation distortions in the near-surface layer. The study of the radiation damage accumulation processes in the near-surface layer was conducted through intense irradiation of ceramics using He2+ ions at a temperature of 700 °C, simulating conditions closely resembling operation conditions. Following this, a correlation between the accumulation of structural modifications (value of atomic displacements) and variations in strength and thermophysical characteristics was established. During the research, it was observed that two-component ceramics exhibit significantly greater resistance to external influences and damage accumulation related to radiation exposure compared to their single-component counterparts. Furthermore, the composition that provides the highest resistance to softening in two-component ceramics is an equal ratio of the components of 0.5Li2ZrO3–0.5Li4SiO4 ceramics.

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Section: Introductionmentioning

confidence: 99%