Study of Resistance to Helium Swelling of Lithium-Containing Ceramics under High-Temperature Irradiation

The aim of this work was to study resistance to helium accumulation processes in the structure of the surface layer of lithium-containing ceramics and the subsequent destruction and embrittlement processes, depending on radiation fluence. The objects of study were Li<sub>2</sub>TiO<su...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Dmitriy I. Shlimas, Artem L. Kozlovskiy, Askar Kh. Syzdykov, Daryn B. Borgekov, Maxim V. Zdorovets
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	lithium-containing ceramics helium swelling embrittlement implantation radiation exposure Crystallography QD901-999
Acceso en línea:	https://doaj.org/article/2d9c1083ea6d4d73a12a57ba85d1cb88
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:2d9c1083ea6d4d73a12a57ba85d1cb88
record_format	dspace
spelling	oai:doaj.org-article:2d9c1083ea6d4d73a12a57ba85d1cb882021-11-25T17:18:39ZStudy of Resistance to Helium Swelling of Lithium-Containing Ceramics under High-Temperature Irradiation10.3390/cryst111113502073-4352https://doaj.org/article/2d9c1083ea6d4d73a12a57ba85d1cb882021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4352/11/11/1350https://doaj.org/toc/2073-4352The aim of this work was to study resistance to helium accumulation processes in the structure of the surface layer of lithium-containing ceramics and the subsequent destruction and embrittlement processes, depending on radiation fluence. The objects of study were Li<sub>2</sub>TiO<sub>3</sub>-type ceramics obtained by thermal sintering. The fluence dependency of changes in the structural and strength properties of ceramics was determined to be in the range from 10<sup>18</sup> to 10<sup>22</sup> ion/m<sup>2</sup>, which corresponded to the concentration of implanted helium from 0.01% to 0.8–1 at.%. Irradiation was carried out at a temperature of 700 °C, which made it possible to simulate the processes of radiation damage that were closest to the real conditions in the reactor core. During the studies carried out, it was found that, at irradiation fluences of 10<sup>18</sup>–10<sup>20</sup> ion/m<sup>2</sup>, the formation of point radiation defects was equaled by the process of thermal annealing of defects, as a result of which the concentration of defects and their effect on the change in the structural and strength properties of ceramics were insignificant. An increase in the concentration of implanted helium in the structure of the surface layer to above 0.5 at.% led to the dominance of radiation damage processes over the annealing of defects and the formation of gas-filled cavities, which negatively affects the strength of ceramics.Dmitriy I. ShlimasArtem L. KozlovskiyAskar Kh. SyzdykovDaryn B. BorgekovMaxim V. ZdorovetsMDPI AGarticlelithium-containing ceramicshelium swellingembrittlementimplantationradiation exposureCrystallographyQD901-999ENCrystals, Vol 11, Iss 1350, p 1350 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	lithium-containing ceramics helium swelling embrittlement implantation radiation exposure Crystallography QD901-999
spellingShingle	lithium-containing ceramics helium swelling embrittlement implantation radiation exposure Crystallography QD901-999 Dmitriy I. Shlimas Artem L. Kozlovskiy Askar Kh. Syzdykov Daryn B. Borgekov Maxim V. Zdorovets Study of Resistance to Helium Swelling of Lithium-Containing Ceramics under High-Temperature Irradiation
description	The aim of this work was to study resistance to helium accumulation processes in the structure of the surface layer of lithium-containing ceramics and the subsequent destruction and embrittlement processes, depending on radiation fluence. The objects of study were Li<sub>2</sub>TiO<sub>3</sub>-type ceramics obtained by thermal sintering. The fluence dependency of changes in the structural and strength properties of ceramics was determined to be in the range from 10<sup>18</sup> to 10<sup>22</sup> ion/m<sup>2</sup>, which corresponded to the concentration of implanted helium from 0.01% to 0.8–1 at.%. Irradiation was carried out at a temperature of 700 °C, which made it possible to simulate the processes of radiation damage that were closest to the real conditions in the reactor core. During the studies carried out, it was found that, at irradiation fluences of 10<sup>18</sup>–10<sup>20</sup> ion/m<sup>2</sup>, the formation of point radiation defects was equaled by the process of thermal annealing of defects, as a result of which the concentration of defects and their effect on the change in the structural and strength properties of ceramics were insignificant. An increase in the concentration of implanted helium in the structure of the surface layer to above 0.5 at.% led to the dominance of radiation damage processes over the annealing of defects and the formation of gas-filled cavities, which negatively affects the strength of ceramics.
format	article
author	Dmitriy I. Shlimas Artem L. Kozlovskiy Askar Kh. Syzdykov Daryn B. Borgekov Maxim V. Zdorovets
author_facet	Dmitriy I. Shlimas Artem L. Kozlovskiy Askar Kh. Syzdykov Daryn B. Borgekov Maxim V. Zdorovets
author_sort	Dmitriy I. Shlimas
title	Study of Resistance to Helium Swelling of Lithium-Containing Ceramics under High-Temperature Irradiation
title_short	Study of Resistance to Helium Swelling of Lithium-Containing Ceramics under High-Temperature Irradiation
title_full	Study of Resistance to Helium Swelling of Lithium-Containing Ceramics under High-Temperature Irradiation
title_fullStr	Study of Resistance to Helium Swelling of Lithium-Containing Ceramics under High-Temperature Irradiation
title_full_unstemmed	Study of Resistance to Helium Swelling of Lithium-Containing Ceramics under High-Temperature Irradiation
title_sort	study of resistance to helium swelling of lithium-containing ceramics under high-temperature irradiation
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/2d9c1083ea6d4d73a12a57ba85d1cb88
work_keys_str_mv	AT dmitriyishlimas studyofresistancetoheliumswellingoflithiumcontainingceramicsunderhightemperatureirradiation AT artemlkozlovskiy studyofresistancetoheliumswellingoflithiumcontainingceramicsunderhightemperatureirradiation AT askarkhsyzdykov studyofresistancetoheliumswellingoflithiumcontainingceramicsunderhightemperatureirradiation AT darynbborgekov studyofresistancetoheliumswellingoflithiumcontainingceramicsunderhightemperatureirradiation AT maximvzdorovets studyofresistancetoheliumswellingoflithiumcontainingceramicsunderhightemperatureirradiation
_version_	1718412521208020992

Study of Resistance to Helium Swelling of Lithium-Containing Ceramics under High-Temperature Irradiation

Ejemplares similares