Study of the Phase Formation Processes and Their Influence on the Change in the Optical and Shielding Characteristics of 0.25ZnO–0.25Al2O3–0.25WO3–0.25Bi2O3 Ceramics
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
Study of the Phase Formation Processes and Their Influence on the Change in the Optical and Shielding Characteristics of 0.25ZnO–0.25Al2O3–0.25WO3–0.25Bi2O3 Ceramics
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| Автор |
Seitbayev, A. S.
Kozlovskiy, A. L. Borgekov, D. B. Zdorovets, M. V. |
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| Тематика |
CERAMICS
OPTICAL PROPERTIES PHASE TRANSFORMATIONS SHIELDING MATERIALS ZINC OXIDE |
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| Описание |
The phase formation processes in 0.25ZnO–0.25Al2O3–0.25WO3–0.25Bi2O3 ceramics with variation in the thermal annealing temperature were evaluated in this study. According to the obtained data on the phase composition dependent on the annealing temperature, the phase transformation dynamics, which can be written in the form of ZnO/Bi2O3/WO3/Al2O3 → ZnBi38O60/ZnO/Bi2WO6/WO3 → Bi2Al4O9/ZnBi38O60/Bi2WO6/ZnO/WO3 → ZnWO4/Bi2WO6/ZnAl2O4/ZnO → ZnWO4/Bi2WO6/ZnAl2O4 → Bi2WO6/ZnWO4/ZnAl2O4 → ZnAl2O4/Bi2WO6/Bi2W2O9, were established. It has been found that the formation of phases of complex oxides of the ZnWO4, Bi2WO6 and Bi2W2O9 types in the composition of ceramics leads to an increase in the density of ceramics up to 8.05–8.10 g/cm3, which positively affects the shielding efficiency and strength characteristics. According to the data on the change in strength characteristics, it was found that a change in the density of ceramics from 6.3 to 8.05–8.10 g/cm3 leads to strengthening and an increase in the crack resistance of ceramics by 75–80%, which indicates a high strength of ceramics and their increased resistance to external influences. As shown by the evaluation of the shielding characteristics, an increase in the density of ceramics due to a phase composition change leads to an increase in the shielding efficiency and a decrease in gamma intensity by a factor of 3–3.5. At the same time, on the base of the data presented, it can be concluded that ceramics obtained in the range of 900–1100 °C have both high shielding characteristics and high strength and resistance to external influences. © 2023 by the authors.
Ministry of Education and Science of the Republic of Kazakhstan: AP13068151 This research was funded by the Science Committee of the Ministry of Education and Science of the Republic of Kazakhstan (No. AP13068151). |
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| Дата |
2024-04-05T16:27:15Z
2024-04-05T16:27:15Z 2023 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) |info:eu-repo/semantics/publishedVersion |
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| Идентификатор |
Seitbayev, AS, Kozlovskiy, AL, Borgekov, DB & Zdorovets, MV 2023, 'Study of the Phase Formation Processes and Their Influence on the Change in the Optical and Shielding Characteristics of 0.25ZnO–0.25Al2O3–0.25WO3–0.25Bi2O3 Ceramics', Ceramics-Switzerland, Том. 6, № 2, стр. 798-817. https://doi.org/10.3390/ceramics6020046
Seitbayev, A. S., Kozlovskiy, A. L., Borgekov, D. B., & Zdorovets, M. V. (2023). Study of the Phase Formation Processes and Their Influence on the Change in the Optical and Shielding Characteristics of 0.25ZnO–0.25Al2O3–0.25WO3–0.25Bi2O3 Ceramics. Ceramics-Switzerland, 6(2), 798-817. https://doi.org/10.3390/ceramics6020046 2571-6131 Final All Open Access, Gold https://www.scopus.com/inward/record.uri?eid=2-s2.0-85163924230&doi=10.3390%2fceramics6020046&partnerID=40&md5=c99c9e6ec204b437fa322128b6a07c9c https://www.mdpi.com/2571-6131/6/2/46/pdf?version=1679550296 http://elar.urfu.ru/handle/10995/130608 10.3390/ceramics6020046 85163924230 001014203200001 |
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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 |
Ceramics
Ceramics |
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