Electrophoretic Deposition of One- and Two-Layer Compacts of Holmium and Yttrium Oxide Nanopowders for Magneto-Optical Ceramics Fabrication
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
Electrophoretic Deposition of One- and Two-Layer Compacts of Holmium and Yttrium Oxide Nanopowders for Magneto-Optical Ceramics Fabrication
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| Автор |
Kalinina, E. G.
Kundikova, N. D. Kuznetsov, D. K. Ivanov, M. G. |
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| Тематика |
ELECTROPHORETIC DEPOSITION (EPD)
HOLMIUM OXIDE MAGNETO-OPTICAL CERAMICS TWO-LAYER CERAMICS YTTRIUM OXIDE |
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| Описание |
In this work, the possibility of fabricating composite magneto-optical ceramics by electrophoretic deposition (EPD) of nanopowders and high-temperature vacuum sintering of the compacts was investigated. Holmium oxide was chosen as a magneto-optical material for the study because of its transparency in the mid-IR range. Nanopowders of magneto-optical (Ho0.95La0.05)2O3 (HoLa) material were made by self-propagating high-temperature synthesis. Nanopowders of (Y0.9La0.1)2O3 (YLa) were made by laser synthesis for an inactive matrix. The process of formation of one- and two-layer compacts by EPD of the nanopowders from alcohol suspensions was studied in detail. Acetylacetone was shown to be a good dispersant to obtain alcohol suspensions of the nanopowders, characterized by high zeta potential values (+29–+80 mV), and to carry out a stable EPD process. One-layer compacts were made from the HoLa and YLa nanopowders with a density of 30–43%. It was found out that the introduction of polyvinyl butyral (PVB) into the suspension leads to a decrease in the mass and thickness of the green bodies deposited, but does not significantly affect their density. The possibility of making two-layer (YLa/HoLa) compacts with a thickness of up to 2.6 mm and a density of up to 46% was demonstrated. Sintering such compacts in a vacuum at a temperature of 1750 °C for 10 h leads to the formation of ceramics with a homogeneous boundary between the YLa/HoLa layers and a thickness of the interdiffused ion layer of about 30 μm. © 2023 by the authors.
Russian Science Foundation, RSF: 18-13-00355; Ural Federal University, UrFU: 075-15-2021-677; Ministry of Science and Higher Education of the Russian Federation: 122011200363-9 This study was funded by the Russian Science Foundation, research project No. 18-13-00355, https://rscf.ru/en/project/18-13-00355 (accessed on 19 July 2023). A part of the research performed by Kundikova N.D. was funded by the Ministry of Science and Higher Education (No. 122011200363-9). The scanning electron microscopy, performed in the Ural Center for Shared Use “Modern nanotechnology” at Ural Federal University (Reg.№ 2968) was funded by the Ministry of Science and Higher Education (Project № 075-15-2021-677). |
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| Дата |
2024-04-05T16:37:10Z
2024-04-05T16:37:10Z 2023 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) |info:eu-repo/semantics/publishedVersion |
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| Идентификатор |
Kalinina, EG, Kundikova, ND, Kuznetsov, DK & Ivanov, MG 2023, 'Electrophoretic Deposition of One- and Two-Layer Compacts of Holmium and Yttrium Oxide Nanopowders for Magneto-Optical Ceramics Fabrication', Magnetochemistry, Том. 9, № 11, 227. https://doi.org/10.3390/magnetochemistry9110227
Kalinina, E. G., Kundikova, N. D., Kuznetsov, D. K., & Ivanov, M. G. (2023). Electrophoretic Deposition of One- and Two-Layer Compacts of Holmium and Yttrium Oxide Nanopowders for Magneto-Optical Ceramics Fabrication. Magnetochemistry, 9(11), [227]. https://doi.org/10.3390/magnetochemistry9110227 2312-7481 Final All Open Access, Gold, Green https://www.scopus.com/inward/record.uri?eid=2-s2.0-85178291806&doi=10.3390%2fmagnetochemistry9110227&partnerID=40&md5=b6cc3d84f7f5c067155669a8a74f58d2 https://www.mdpi.com/2312-7481/9/11/227/pdf?version=1700026209 http://elar.urfu.ru/handle/10995/131015 10.3390/magnetochemistry9110227 85178291806 001120961200001 |
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| Язык |
en
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| Связанные ресурсы |
info:eu-repo/grantAgreement/RSF//18-13-00355
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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 |
Multidisciplinary Digital Publishing Institute (MDPI)
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| Источник |
Magnetochemistry
Magnetochemistry |
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