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Study of Degradation Mechanisms of Strength and Thermal-Physical Properties of Nitride and Carbide Ceramics—Promising Materials for Nuclear Energy

The dependences of changes in the strength properties of nitride and carbide ceramics under high temperature irradiation with Kr(15+) and Xe(22+) heavy ions at irradiation doses of 10(12)–10(15) ions/cm(2) are presented in this work. The irradiation was chosen to simulate radiation damage processes...

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Autores principales: Berguzinov, Askhat, Kozlovskiy, Artem, Kenzhina, Inesh, Shlimas, Dmitriy I.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9182159/
https://www.ncbi.nlm.nih.gov/pubmed/35683644
http://dx.doi.org/10.3390/nano12111789
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author Berguzinov, Askhat
Kozlovskiy, Artem
Kenzhina, Inesh
Shlimas, Dmitriy I.
author_facet Berguzinov, Askhat
Kozlovskiy, Artem
Kenzhina, Inesh
Shlimas, Dmitriy I.
author_sort Berguzinov, Askhat
collection PubMed
description The dependences of changes in the strength properties of nitride and carbide ceramics under high temperature irradiation with Kr(15+) and Xe(22+) heavy ions at irradiation doses of 10(12)–10(15) ions/cm(2) are presented in this work. The irradiation was chosen to simulate radiation damage processes that are closest to the real conditions of reactor tests in operating modes of increased temperatures. Polycrystalline ceramics based on AlN, Si(3)N(4) nitrides, and SiC carbides were chosen as objects of research, as they have great prospects for use as a basis for structural materials for high-temperature nuclear reactors, as well as materials for nuclear waste disposal. During these studies the effect of radiation damage caused by irradiation with different fluences on the change in mechanical strength and hardness were determined, and the mechanisms causing these changes depending on the type of irradiated materials were proposed. The novelty of this study is in the results obtained determining the stability of the strength and thermophysical parameters of nitride and carbide ceramics exposed to high-temperature irradiation, which made it possible to determine the main stages and mechanisms for changing these parameters depending on the accumulated radiation damage. The relevance of this study consists not only in obtaining new data on the properties of structural materials exposed to ionizing radiation, but also in the possibility of determining the mechanisms of radiation damage in ceramics.
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spelling pubmed-91821592022-06-10 Study of Degradation Mechanisms of Strength and Thermal-Physical Properties of Nitride and Carbide Ceramics—Promising Materials for Nuclear Energy Berguzinov, Askhat Kozlovskiy, Artem Kenzhina, Inesh Shlimas, Dmitriy I. Nanomaterials (Basel) Article The dependences of changes in the strength properties of nitride and carbide ceramics under high temperature irradiation with Kr(15+) and Xe(22+) heavy ions at irradiation doses of 10(12)–10(15) ions/cm(2) are presented in this work. The irradiation was chosen to simulate radiation damage processes that are closest to the real conditions of reactor tests in operating modes of increased temperatures. Polycrystalline ceramics based on AlN, Si(3)N(4) nitrides, and SiC carbides were chosen as objects of research, as they have great prospects for use as a basis for structural materials for high-temperature nuclear reactors, as well as materials for nuclear waste disposal. During these studies the effect of radiation damage caused by irradiation with different fluences on the change in mechanical strength and hardness were determined, and the mechanisms causing these changes depending on the type of irradiated materials were proposed. The novelty of this study is in the results obtained determining the stability of the strength and thermophysical parameters of nitride and carbide ceramics exposed to high-temperature irradiation, which made it possible to determine the main stages and mechanisms for changing these parameters depending on the accumulated radiation damage. The relevance of this study consists not only in obtaining new data on the properties of structural materials exposed to ionizing radiation, but also in the possibility of determining the mechanisms of radiation damage in ceramics. MDPI 2022-05-24 /pmc/articles/PMC9182159/ /pubmed/35683644 http://dx.doi.org/10.3390/nano12111789 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
Kenzhina, Inesh
Shlimas, Dmitriy I.
Study of Degradation Mechanisms of Strength and Thermal-Physical Properties of Nitride and Carbide Ceramics—Promising Materials for Nuclear Energy
title Study of Degradation Mechanisms of Strength and Thermal-Physical Properties of Nitride and Carbide Ceramics—Promising Materials for Nuclear Energy
title_full Study of Degradation Mechanisms of Strength and Thermal-Physical Properties of Nitride and Carbide Ceramics—Promising Materials for Nuclear Energy
title_fullStr Study of Degradation Mechanisms of Strength and Thermal-Physical Properties of Nitride and Carbide Ceramics—Promising Materials for Nuclear Energy
title_full_unstemmed Study of Degradation Mechanisms of Strength and Thermal-Physical Properties of Nitride and Carbide Ceramics—Promising Materials for Nuclear Energy
title_short Study of Degradation Mechanisms of Strength and Thermal-Physical Properties of Nitride and Carbide Ceramics—Promising Materials for Nuclear Energy
title_sort study of degradation mechanisms of strength and thermal-physical properties of nitride and carbide ceramics—promising materials for nuclear energy
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9182159/
https://www.ncbi.nlm.nih.gov/pubmed/35683644
http://dx.doi.org/10.3390/nano12111789
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