Laser Ablation Synthesis and Characterization of Tb2O3 Nanoparticles for Magneto-Optical Ceramics
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
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Laser Ablation Synthesis and Characterization of Tb2O3 Nanoparticles for Magneto-Optical Ceramics
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| Автор |
Maksimov, R. N.
Osipov, V. V. Karagedov, G. R. Platonov, V. V. Yurovskikh, A. S. Orlov, A. N. Spirina, A. V. Shitov, V. A. |
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| Тематика |
DENSIFICATION
LASER ABLATION MAGNETIC MOMENT MAGNETO-OPTICAL CERAMIC NANOPOWDER POLYMORPHIC PHASE TRANSITION TERBIUM OXIDE VERDET CONSTANT |
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| Описание |
In this study, nano-sized individual Tb2O3 particles synthesized by the laser ablation method were extensively characterized and assessed as suitable precursors for the fabrication of transparent magneto-optical ceramics without requiring the introduction of grain growth inhibitors and stabilizing additives. The as-produced powder comprised 13 nm particles with a spherical shape and monoclinic crystal structure, whose full transformation into cubic phase was achieved after heating at 950 °C and 700 °C under vacuum and Ar gas, respectively. After subjecting the nanopowder compact to pre-sintering at 1350 °C, the microstructural features were investigated along with their correlation to the optical transmittance of Tb2O3 ceramic hot isostatically pressed (HIPed) for 2 h at 1450 °C under 200 MPa. The as-HIPed sample had a brownish color, with an optical transmittance of 65.3% at a wavelength of 1060 nm and an average grain size of 14 μm. The Verdet constant measured at wavelengths of 633 nm and 1060 nm was 471 rad T−1 m−1 and 142 rad T−1 m−1 to confirm a very high content of magneto-active Tb3+ ions. The obtained results indicate that laser ablation synthesis of nanoparticles followed by pre-sintering and HIP is a promising approach for the manufacture of magneto-optical Tb2O3 ceramics without specific sintering aids. © 2022 by the authors.
Ministry of Education and Science of the Russian Federation, Minobrnauka, (075-15-2021-680) Russian Science Foundation, RSF, (22-23-00658) Funding text 1: The authors are grateful to the “Geoanalitik” shared research facilities of the IGG UB RAS for support with sample polishing (D.A. Zamyatin, N.S. Chebykin) and SEM (G.B. Mikhalevsky). The re-equipment and comprehensive development of the “Geoanalitik” shared research facilities of the IGG UB RAS is supported by the Ministry of Science and Higher Education of the Russian Federation (Agreement No. 075-15-2021-680). Funding text 2: This research was funded by the Russian Science Foundation, grant number 22-23-00658, https://rscf.ru/en/project/22-23-00658/ (accessed on 10 September 2022). |
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| Дата |
2024-04-08T11:05:47Z
2024-04-08T11:05:47Z 2022 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) Published version (info:eu-repo/semantics/publishedVersion) |
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| Идентификатор |
Maksimov, RN, Osipov, VV, Karagedov, GR, Platonov, VV, Yurovskikh, AS, Orlov, AN, Spirina, AV & Shitov, VA 2022, 'Laser Ablation Synthesis and Characterization of Tb2O3 Nanoparticles for Magneto-Optical Ceramics', Inorganics, Том. 10, № 10, 173. https://doi.org/10.3390/inorganics10100173
Maksimov, R. N., Osipov, V. V., Karagedov, G. R., Platonov, V. V., Yurovskikh, A. S., Orlov, A. N., Spirina, A. V., & Shitov, V. A. (2022). Laser Ablation Synthesis and Characterization of Tb2O3 Nanoparticles for Magneto-Optical Ceramics. Inorganics, 10(10), [173]. https://doi.org/10.3390/inorganics10100173 2304-6740 Final All Open Access; Gold Open Access https://www.mdpi.com/2304-6740/10/10/173/pdf?version=1666063152 https://www.mdpi.com/2304-6740/10/10/173/pdf?version=1666063152 http://elar.urfu.ru/handle/10995/131212 10.3390/inorganics10100173 85140616632 000875295800001 |
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| Язык |
en
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| Связанные ресурсы |
info:eu-repo/grantAgreement/RSF//22-23-00658
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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 |
Inorganics
Inorganics |
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