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Study of Structural and Strength Changes in Lithium-Containing Ceramics—Potential Blanket Materials for Nuclear Power, Subjected to High-Dose Proton Irradiation

The paper considers the hydrogenation processes in Li(2)TiO(3) ceramics under irradiation with protons with an energy of 500 keV and fluences of 1 × 10(10)–5 × 10(17) ion/cm(2). The choice of the type of irradiation, as well as the irradiation fluences, is based on the possibilities of modeling hydr...

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Autores principales: Berguzinov, Askhat, Kozlovskiy, Artem L., Khametova, Ainagul A., Shlimas, Dmitriy I.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9414621/
https://www.ncbi.nlm.nih.gov/pubmed/36013709
http://dx.doi.org/10.3390/ma15165572
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author Berguzinov, Askhat
Kozlovskiy, Artem L.
Khametova, Ainagul A.
Shlimas, Dmitriy I.
author_facet Berguzinov, Askhat
Kozlovskiy, Artem L.
Khametova, Ainagul A.
Shlimas, Dmitriy I.
author_sort Berguzinov, Askhat
collection PubMed
description The paper considers the hydrogenation processes in Li(2)TiO(3) ceramics under irradiation with protons with an energy of 500 keV and fluences of 1 × 10(10)–5 × 10(17) ion/cm(2). The choice of the type of irradiation, as well as the irradiation fluences, is based on the possibilities of modeling hydrogenation processes and studying the kinetics of structural changes caused by the accumulation of radiation damage. The choice of Li(2)TiO(3) ceramics as objects of research is due to their prospects for using as blanket materials of thermonuclear reactors for the tritium production and accumulation. It was found that the formation of point defects and their subsequent evolution associated with the formation of complex compounds and the filling of pores, followed by the formation of gas-filled bubbles, the presence of which leads to a decrease in crack resistance and resistance to destruction of the near-surface layer. Based on the data on structural changes and evolution of the crystal lattice parameters, its swelling, a description of the destruction processes associated with hydrogenation in Li(2)TiO(3) ceramics was proposed. Also, during the studies, it was found that at irradiation fluences above 1 × 10(17) ion/cm(2), the appearance of impurity inclusions characteristic of the TiO(2) phase was observed, the presence of which indicates the crystal lattice destruction processes because of accumulation of radiation damage and deformations caused by them. Critical doses are established at which there is a sharp deterioration in strength and crack resistance, reflecting the resistance of ceramics to mechanical external influences.
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spelling pubmed-94146212022-08-27 Study of Structural and Strength Changes in Lithium-Containing Ceramics—Potential Blanket Materials for Nuclear Power, Subjected to High-Dose Proton Irradiation Berguzinov, Askhat Kozlovskiy, Artem L. Khametova, Ainagul A. Shlimas, Dmitriy I. Materials (Basel) Article The paper considers the hydrogenation processes in Li(2)TiO(3) ceramics under irradiation with protons with an energy of 500 keV and fluences of 1 × 10(10)–5 × 10(17) ion/cm(2). The choice of the type of irradiation, as well as the irradiation fluences, is based on the possibilities of modeling hydrogenation processes and studying the kinetics of structural changes caused by the accumulation of radiation damage. The choice of Li(2)TiO(3) ceramics as objects of research is due to their prospects for using as blanket materials of thermonuclear reactors for the tritium production and accumulation. It was found that the formation of point defects and their subsequent evolution associated with the formation of complex compounds and the filling of pores, followed by the formation of gas-filled bubbles, the presence of which leads to a decrease in crack resistance and resistance to destruction of the near-surface layer. Based on the data on structural changes and evolution of the crystal lattice parameters, its swelling, a description of the destruction processes associated with hydrogenation in Li(2)TiO(3) ceramics was proposed. Also, during the studies, it was found that at irradiation fluences above 1 × 10(17) ion/cm(2), the appearance of impurity inclusions characteristic of the TiO(2) phase was observed, the presence of which indicates the crystal lattice destruction processes because of accumulation of radiation damage and deformations caused by them. Critical doses are established at which there is a sharp deterioration in strength and crack resistance, reflecting the resistance of ceramics to mechanical external influences. MDPI 2022-08-13 /pmc/articles/PMC9414621/ /pubmed/36013709 http://dx.doi.org/10.3390/ma15165572 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Berguzinov, Askhat
Kozlovskiy, Artem L.
Khametova, Ainagul A.
Shlimas, Dmitriy I.
Study of Structural and Strength Changes in Lithium-Containing Ceramics—Potential Blanket Materials for Nuclear Power, Subjected to High-Dose Proton Irradiation
title Study of Structural and Strength Changes in Lithium-Containing Ceramics—Potential Blanket Materials for Nuclear Power, Subjected to High-Dose Proton Irradiation
title_full Study of Structural and Strength Changes in Lithium-Containing Ceramics—Potential Blanket Materials for Nuclear Power, Subjected to High-Dose Proton Irradiation
title_fullStr Study of Structural and Strength Changes in Lithium-Containing Ceramics—Potential Blanket Materials for Nuclear Power, Subjected to High-Dose Proton Irradiation
title_full_unstemmed Study of Structural and Strength Changes in Lithium-Containing Ceramics—Potential Blanket Materials for Nuclear Power, Subjected to High-Dose Proton Irradiation
title_short Study of Structural and Strength Changes in Lithium-Containing Ceramics—Potential Blanket Materials for Nuclear Power, Subjected to High-Dose Proton Irradiation
title_sort study of structural and strength changes in lithium-containing ceramics—potential blanket materials for nuclear power, subjected to high-dose proton irradiation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9414621/
https://www.ncbi.nlm.nih.gov/pubmed/36013709
http://dx.doi.org/10.3390/ma15165572
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