nucВестник НЯЦ РКNNC RK Bulletin1729-75161729-7885Национальный ядерный центр Республики Казахстан10.52676/1729-7885-2025-1-132-139nuc-789Research ArticleСтатьиИЗУЧЕНИЕ КИНЕТИКИ СТРУКТУРНЫХ ПОВРЕЖДЕНИЙ В КОМПОЗИТНЫХ CER-CER КЕРАМИКАХ ПРИ ОБЛУЧЕНИИ ТЯЖЕЛЫМИ ИОНАМИ, СРАВНИМЫМИ С ОСКОЛКАМИ ДЕЛЕНИЯ ЯДЕРНОГО ТОПЛИВАSTUDY OF THE KINETICS OF STRUCTURAL DAMAGE IN COMPOSITE CER-CER CERAMICS UNDER IRRADIATION WITH HEAVY IONS COMPARABLE TO NUCLEAR FUEL FISSION FRAGMENTSГиниятоваШ. Г.GiniyatovaSh. G.

Астана

 

Astana

КозловскийА. Л.KozlovskiyA. L.

Астана

Алматы

Astana

Almaty

kozlovskiy.a@inp.kzШлимасД. И.ShlimasD. I.

Астана

Алматы

Astana

Almaty

НАО Евразийский национальный университет им. Л.Н. ГумилеваL.N. Gumilyov Eurasian National UniversityНАО Евразийский национальный университет им. Л.Н. Гумилева; РГП «Институт ядерной физики» МЭ РККазахстанL.N. Gumilyov Eurasian National University; RSE “Institute of Nuclear Physics” ME RKKazakhstan20250104202501132139Copyright © Гиниятова Ш.Г., Козловский А.Л., Шлимас Д.И., 20252025Гиниятова Ш.Г., Козловский А.Л., Шлимас Д.И.Giniyatova S.G., Kozlovskiy A.L., Shlimas D.I.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://journals.nnc.kz/jour/article/view/789

В работе представлены результаты оценки изменений структурных, прочностных и теплофизических параметров композитных керамик по типу cer-cer на основе оксидных соединений к радиационным повреждениям, вызванным высокотемпературным облучением тяжелыми ионами Kr15+ и Xe23+. В ходе проведенных исследований установлены взаимосвязи между изменениями структурных параметров, обусловленных деформационным искажением кристаллической структуры и увеличением ее объема, с результатами оценки деградации прочностных и теплофизических параметров. Определено, что увеличение флюенса облучения приводит к накопительному эффекту деградации свойств керамик, при этом в случае облучения тяжелыми ионами Xe23+ эффект структурного разупорядочения и деградации прочностных и теплофизических параметров более выражен, чем в случае облучения ионами Kr15+. Данное явление обусловлено различиями в величинах ионизационных потерь налетающих ионов, а также размерами поврежденных областей, возникающих в результате взаимодействия налетающих ионов с кристаллической структурой поврежденного слоя. При этом наиболее стабильными к радиационно-стимулированным процессам разупрочнения являются двухфазные Al2O3 – ZrO2 керамики, в которых наличие межфазных границ приводит к увеличению сопротивляемости к разупрочнению и деструкции при высокодозном облучении. В качестве механизма сдерживания радиационных повреждений в случае двухфазных керамик рассматривается наличие межфазных границ, выступающих барьерными преградами, останавливающими диффузию точечных и вакансионных дефектов, а также снижающих степень структурного разупорядочения поврежденного слоя. 

The paper presents the assessment results of changes in the structural, strength and thermal parameters of cer-cer composite ceramics based on oxide compounds to radiation damage caused by high-temperature irradiation with heavy Kr15+ and Xe23+ ions. During the studies conducted, relationships between changes in structural parameters caused by deformation distortion of the crystalline structure and an increase in its volume, with the assessment results of the degradation of strength and thermal parameters, were established. It was determined that an elevation in the irradiation fluence leads to a cumulative effect of degradation of the properties of ceramics, while in the case of irradiation with heavy Xe23+ ions, the effect of structural disordering and degradation of strength and thermal parameters is more pronounced than in the case of irradiation with Kr15+ ions. This phenomenon is caused by differences in the value of ionization losses of incident ions, as well as the size of damaged areas that arise as a result of the interaction of incident ions with the crystalline structure of the damaged layer. At the same time, the most stable to radiation-stimulated softening processes are two-phase Al2O3 – ZrO2 ceramics, in which the presence of interphase boundaries leads to a growth in resistance to softening and destruction under high-dose irradiation. The presence of interphase boundaries acting as barriers that stop the diffusion of point and vacancy defects and reduce the degree of structural disorder of the damaged layer is considered as a mechanism for containing radiation damage in the case of two-phase ceramics. 

радиационные повреждениякомпозитные керамикидефектные включенияразупорядочениегазовое распуханиетеплопроводностьradiation damagecomposite ceramicsdefective inclusionsdisordergas swellingthermal conductivityИсследование финансируется Комитетом науки Министерства науки и высшего образования Республики Казахстан (AP19679979).ReferencesGolosov O. A. et al. Corrosive and mechanical resistance of MgO ceramics under metallizing and mild chlorination of spent nuclear fuel in molten salts // Ceramics International. – 2021. – Vol. 47, No. 3. – P. 3306–3311.Golosov O. A. et al. Corrosive and mechanical resistance of MgO ceramics under metallizing and mild chlorination of spent nuclear fuel in molten salts // Ceramics International. – 2021. – Vol. 47, No. 3. – P. 3306–3311.Evarts J. S. et al. Ceramic–Metal (Cermet) Composites: A Review of Key Properties and Synthesis Methods Focused on Nuclear Waste Immobilization // Industrial & Engineering Chemistry Research. – 2024. – Vol. 63, No. 14. – P. 6003–6023.Evarts J. S. et al. Ceramic–Metal (Cermet) Composites: A Review of Key Properties and Synthesis Methods Focused on Nuclear Waste Immobilization // Industrial & Engineering Chemistry Research. – 2024. – Vol. 63, No. 14. – P. 6003–6023.Liu Y. et al. Irradiation response of Al2O3-ZrO2 ceramic composite under He ion irradiation // Journal of the European Ceramic Society. – 2021. – Vol. 41, №. 4. – P. 2883– 2891Liu Y. et al. Irradiation response of Al2O3-ZrO2 ceramic composite under He ion irradiation // Journal of the European Ceramic Society. – 2021. – Vol. 41, №. 4. – P. 2883– 2891Alekseeva L. S. et al. Radiation resistance of fine-grained YAG: Nd ceramics irradiated with swift heavy multicharged Ar and Xe ions // Ceramics International. – 2024. – Vol. 50, No. 24. – P. 55251–55262.Alekseeva L. S. et al. Radiation resistance of fine-grained YAG: Nd ceramics irradiated with swift heavy multicharged Ar and Xe ions // Ceramics International. – 2024. – Vol. 50, No. 24. – P. 55251–55262.Wei H. et al. Modeling of irradiation-induced thermomechanical coupling and multi-scale behavior in a fully ceramic-microencapsulated fuel pellet // Journal of Nuclear Materials. – 2021. – Vol. 544. – P. 152673.Wei H. et al. Modeling of irradiation-induced thermomechanical coupling and multi-scale behavior in a fully ceramic-microencapsulated fuel pellet // Journal of Nuclear Materials. – 2021. – Vol. 544. – P. 152673.Zacharie-Aubrun I. et al. Effects of irradiation on mechanical properties of nuclear UO2 fuels evaluated by Vickers indentation at room temperature // Journal of Nuclear Materials. – 2021. – Vol. 547. – P. 152821.Zacharie-Aubrun I. et al. Effects of irradiation on mechanical properties of nuclear UO2 fuels evaluated by Vickers indentation at room temperature // Journal of Nuclear Materials. – 2021. – Vol. 547. – P. 152821.D'Agata E. et al. The behaviour under irradiation of molybdenum matrix for inert matrix fuel containing americium oxide (CerMet concept) // Journal of Nuclear Materials. – 2015. – Vol. 465. – P. 820–834.D'Agata E. et al. The behaviour under irradiation of molybdenum matrix for inert matrix fuel containing americium oxide (CerMet concept) // Journal of Nuclear Materials. – 2015. – Vol. 465. – P. 820–834.Lee W. E. et al. Opportunities for advanced ceramics and composites in the nuclear sector // Journal of the American Ceramic Society. – 2013. – Vol. 96, No. 7. – P. 2005– 2030.Lee W. E. et al. Opportunities for advanced ceramics and composites in the nuclear sector // Journal of the American Ceramic Society. – 2013. – Vol. 96, No. 7. – P. 2005– 2030.Sauder C. Ceramic matrix composites: nuclear applications // Ceramic matrix composites: materials, modeling and technology. – 2014. – P. 609–646.Sauder C. Ceramic matrix composites: nuclear applications // Ceramic matrix composites: materials, modeling and technology. – 2014. – P. 609–646.Bonal J. P. et al. Graphite, ceramics, and ceramic composites for high-temperature nuclear power systems // MRS bulletin. – 2009. – Vol. 34, No. 1. – P. 28–34.Bonal J. P. et al. Graphite, ceramics, and ceramic composites for high-temperature nuclear power systems // MRS bulletin. – 2009. – Vol. 34, No. 1. – P. 28–34.Castro L. et al. Thermal analysis of ceramic nuclear fuels for the HPLWR // Annals of Nuclear Energy. – 2019. – Vol. 127. – P. 227–236.Castro L. et al. Thermal analysis of ceramic nuclear fuels for the HPLWR // Annals of Nuclear Energy. – 2019. – Vol. 127. – P. 227–236.Toulemonde M., Bouffard S., Studer F. Swift heavy ions in insulating and conducting oxides: tracks and physical properties // Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. – 1994. – Vol. 91, No. 1–4. – P. 108–123.Toulemonde M., Bouffard S., Studer F. Swift heavy ions in insulating and conducting oxides: tracks and physical properties // Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. – 1994. – Vol. 91, No. 1–4. – P. 108–123.Kamarou A. et al. Swift heavy ion irradiation of InP: Thermal spike modeling of track formation // Physical Review B: Condensed Matter and Materials Physics. – 2006. – Vol. 73, №. 18. – P. 184107.Kamarou A. et al. Swift heavy ion irradiation of InP: Thermal spike modeling of track formation // Physical Review B: Condensed Matter and Materials Physics. – 2006. – Vol. 73, №. 18. – P. 184107.Naslain R. Design, preparation and properties of nonoxide CMCs for application in engines and nuclear reactors: an overview // Composites Science and Technology. – 2004. – Vol. 64, №. 2. – P. 155-170.Naslain R. Design, preparation and properties of nonoxide CMCs for application in engines and nuclear reactors: an overview // Composites Science and Technology. – 2004. – Vol. 64, №. 2. – P. 155-170.Ishikawa N., Taguchi T., Ogawa H. Comprehensive understanding of hillocks and ion tracks in ceramics irradiated with swift heavy ions // Quantum Beam Science. – 2020. – Vol. 4, No. 4. – P. 43.Ishikawa N., Taguchi T., Ogawa H. Comprehensive understanding of hillocks and ion tracks in ceramics irradiated with swift heavy ions // Quantum Beam Science. – 2020. – Vol. 4, No. 4. – P. 43.Beauvy M. et al. Damages in ceramics for nuclear waste transmutation by irradiation with swift heavy ions // Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. – 2006. – Vol. 242, No. 1–2. – P. 557-561.Beauvy M. et al. Damages in ceramics for nuclear waste transmutation by irradiation with swift heavy ions // Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. – 2006. – Vol. 242, No. 1–2. – P. 557-561.Rymzhanov R. A. et al. Overlap of swift heavy ion tracks in Al2O3 // Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. – 2018. – Vol. 435. – P. 121–125.Rymzhanov R. A. et al. Overlap of swift heavy ion tracks in Al2O3 // Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. – 2018. – Vol. 435. – P. 121–125.García G. et al. Amorphization kinetics under swift heavy ion irradiation: A cumulative overlapping-track approach //Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. – 2011. – Vol. 269, No. 4. – P. 492–497.García G. et al. Amorphization kinetics under swift heavy ion irradiation: A cumulative overlapping-track approach //Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. – 2011. – Vol. 269, No. 4. – P. 492–497.

The authors declare that there are no conflicts of interest present.