Formation peculiarities and optical properties of highly-doped (Y0.86La0.09Yb0.05)2O3 transparent ceramics |
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| Affiliation: | 1. Institute for Single Crystals, NAS of Ukraine, 60 Nauky Ave., Kharkiv, 61072, Ukraine;2. SSI “Institute for Single Crystals”, NAS of Ukraine, 60 Nauky Ave., Kharkiv, 61072, Ukraine;3. Key Laboratory of Transparent Opto-functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 201899, China;4. National Institute of Materials Physics, Bucharest-Magurele, 077125, 405A Atomistilor Str., Romania;1. College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai, 201306, China;2. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China;3. Institute for Materials Research, Tohoku University, Sendai, 980-8577, Japan;1. Planetary Aeronomy, Belgian Institute for Space Aeronomy, 3 av. Circulaire, 1180 Brussels, Belgium;2. Fonds National de la Recherche Scientifique, 5 rue d?Egmont, 1000 Brussels, Belgium;3. LATMOS, 11 Bd d?Alembert, 78280 Guyancourt, France;1. Centre de recherche sur les Ions, les Matériaux et la Photonique (CIMAP), UMR 6252 CNRS-CEA-ENSICaen, Université de Caen, 6 Boulevard du Maréchal Juin, 14050, Caen Cedex 4, France;2. Institut Lumière Matière (ILM), UMR5306 CNRS, Université de Lyon 1, Campus LyonTech - La Doua, Bâtiment Kastler, 10 rue Ada Byron, 69622, Villeurbanne, France;3. Zentrum fur Lasermaterialien - Kristalle, Leibniz-Institut fur Kristallzuchtung, Berlin, 12489, Germany;4. Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, Sendai, 980-8577, Japan;1. ITMO University, Kronverkskiy pr., 49, 197101 Saint-Petersburg, Russia;2. G.G. Devyatykh Institute of Chemistry of High-Purity Substances (IHPS) of the Russian Academy of Sciences, 49 Tropinin St., 603950 Nizhny Novgorod, Russia;3. N.I. Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Av., 603950 Nizhny Novgorod, Russia;4. NITIOM S.I. Vavilov State Optical Institute, 36 Babushkina St., 192171 Saint-Petersburg, Russia;5. Center for Optical Materials and Technologies (COMT), Belarusian National Technical University, 65/17 Nezavisimosti Ave., 220013 Minsk, Belarus |
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| Abstract: | Formation peculiarities of highly-doped (Y0.86La0.09Yb0.05)2O3 transparent ceramics have been studied by X-ray diffraction and electron microscopy methods. The phase composition evolution of 1.81Y2O3?0.18La2O3?0.01Yb2O3 powder mixtures annealed at the temperatures of 1100, 1200, 1300, and 1400 °C has been studied by XRD. It has been shown that Yb2O3 phase dissolves in Y2O3 matrix in the calcination temperature range of 1300–1400 °C. Complete dissolution of La2O3 in Y2O3 matrix occurs at temperatures above 1400 °C. La3+ ions enter in Y2O3 and Yb2O3 crystal structures simultaneously in the 1200–1300 °C range, which leads to a remarkable increase in the volume of the corresponding crystal lattices. The possible reasons for suppressing the crystalline growth of Y2O3 and Yb2O3 cubic phases have been discussed. Finally, (Y0.86La0.09Yb0.05)2O3 transparent ceramics have been obtained by solid-state vacuum sintering at 1650–1750 °C. Ceramics synthesized at a temperature of 1750 °C have been characterized by an in-line optical transmittance of 60% and a homogeneous distribution of constituent components within the volume and along the grain boundaries. |
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| Keywords: | Sintering X-ray methods Optical properties Functional application |
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