Synthesis and Characterization of the Properties of (1−x)Si3N4-xAl2O3 Ceramics with Variation of the Components
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
Synthesis and Characterization of the Properties of (1−x)Si3N4-xAl2O3 Ceramics with Variation of the Components
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| Автор |
Borgekov, D. B.
Kozlovskiy, A. L. Zdorovets, M. V. Shakirzyanov, R. I. Kenzhina, I. E. Shlimas, D. I. |
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| Тематика |
CERAMICS
DISPERSED NUCLEAR FUEL HARDENING INERT MATRICES PHASE COMPOSITION ALUMINUM COMPOUNDS ENERGY GAP NUCLEAR FUELS OPTICAL PROPERTIES PHASE COMPOSITION SILICA SYNTHESIS (CHEMICAL) CERAMIC DISPERSED NUCLEAR FUEL INERT MATRIX PHASE TRANSFORMATION PROCESS PHASES TRANSFORMATION PROPERTY SOLID PHASE SYNTHESIS SYNTHESIS AND CHARACTERIZATIONS SYNTHESIS METHOD THERMAL-ANNEALING HARDENING |
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| Описание |
The aim of this paper is to study the effect of variation in the component ratio of (1−x)Si3N4-xAl2O3 ceramics on the phase composition, strength and thermal properties of ceramics. To obtain ceramics and their further study, the solid-phase synthesis method combined with thermal annealing of samples at a temperature of 1500 °C typical for the initialization of phase transformation processes was used. The relevance and novelty of this study lies in obtaining new data on the processes of phase transformations with a variation in the composition of ceramics, as well as determining the effect of the phase composition on the resistance of ceramics to external influences. According to X-ray phase analysis data, it was found that an increase in the Si3N4 concentration in the composition of ceramics leads to a partial displacement of the tetragonal phase of SiO2 and Al2(SiO4)O and an increase in the contribution of Si3N4. Evaluation of the optical properties of the synthesized ceramics depending on the ratio of the components showed that the formation of the Si3N4 phase leads to an increase in the band gap and the absorbing ability of the ceramics due to the formation of additional absorption bands from 3.7–3.8 eV. Analysis of the strength dependences showed that an increase in the contribution of the Si3N4 phase with subsequent displacement of the oxide phases leads to a strengthening of the ceramic by more than 15–20%. At the same time, it was found that a change in the phase ratio leads to the hardening of ceramics, as well as an increase in crack resistance. © 2023 by the authors.
Ministry of Education and Science of the Republic of Kazakhstan: AP14871176 This study was funded by the Ministry of Education and Science of the Republic of Kazakhstan (grant AP14871176). |
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| Дата |
2024-04-05T16:17:26Z
2024-04-05T16:17:26Z 2023 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) |info:eu-repo/semantics/publishedVersion |
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| Идентификатор |
Borgekov, DB, Kozlovskiy, AL, Zdorovets, MV, Shakirzyanov, RI, Kenzhina, IE & Shlimas, DI 2023, 'Synthesis and Characterization of the Properties of (1−x)Si3N4-xAl2O3 Ceramics with Variation of the Components', Materials, Том. 16, № 5, 1961. https://doi.org/10.3390/ma16051961
Borgekov, D. B., Kozlovskiy, A. L., Zdorovets, M. V., Shakirzyanov, R. I., Kenzhina, I. E., & Shlimas, D. I. (2023). Synthesis and Characterization of the Properties of (1−x)Si3N4-xAl2O3 Ceramics with Variation of the Components. Materials, 16(5), [1961]. https://doi.org/10.3390/ma16051961 1996-1944 Final All Open Access, Gold, Green https://www.scopus.com/inward/record.uri?eid=2-s2.0-85149835494&doi=10.3390%2fma16051961&partnerID=40&md5=de65602813e0891d2c70bb0d2d1b036d https://www.mdpi.com/1996-1944/16/5/1961/pdf?version=1677660372 http://elar.urfu.ru/handle/10995/130269 10.3390/ma16051961 85149835494 000947168100001 |
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| Язык |
en
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| Права |
Open access (info:eu-repo/semantics/openAccess)
cc-by https://creativecommons.org/licenses/by/4.0/ |
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| Формат |
application/pdf
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| Издатель |
MDPI
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| Источник |
Materials
Materials |
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