Fabrication and properties of Y2O3 transparent ceramic by sintering aid combinations |
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| Affiliation: | 1. Jiangsu Key Laboratories of Advanced Laser Materials and Devices, School of Physics and Electronics Engineering, Jiangsu Normal University, Xuzhou, 221116 China;2. Jiangsu Collaborative Innovation Center of Advanced Laser Technology and Emerging Industry, Jiangsu Normal University, Xuzhou, 221116 China;1. School of Electrical and Electronic Engineering, Nanyang Technological University, 639798 Singapore;2. School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China;3. School of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore;1. PSL Research University, Chimie ParisTech, CNRS, 75005, Paris, France;2. World-Lab Co., Ltd., CSJ 308 1-2-19 Mutsuno, Atsuta-ku, Nagoya, 456-0023, Japan;1. Institute for Single Crystals, NAS of Ukraine, 61072 Kharkiv, Ukraine;2. Far Eastern Federal University, 690950 Vladivostok, Russian Federation;3. Institute of Chemistry, Far-Eastern Branch, Russian Academy of Sciences, 690022 Vladivostok, Russian Federation;4. National Institute for Laser, Plasma and Radiation Physics, ECS Laboratory, P.O. Box MG-36, 077125 Magurele, Bucharest, Romania;5. National Institute of Materials Physics, P.O. Box MG-7, 077125 Magurele, Bucharest, Romania;1. Institute of Electrophysics UB RAS, Amundsen St. 106, Ekaterinburg 620016, Russia;2. Ural Federal University named after the first President of Russia B.N. Yeltsin, Mira St. 19, Ekaterinburg 620002, Russia;1. State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, PR China;2. School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA;3. Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, PR China |
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| Abstract: | Transparent Y2O3 ceramics were fabricated by the solid-state reaction and vacuum sintering method using La2O3, ZrO2 and Al2O3 as sintering aids. The microstructure of the Y2O3 ceramics sintered from 1550 °C to 1800 °C for 8 h were analyzed by SEM. The sintering process of the Y2O3 transparent ceramics was optimized. The results showed that when the samples were sintered at 1800 °C for 8 h under vacuum, the average grain sizes of the ceramics were about 3.5 µm. Furthermore, the transmittance of Y2O3 ceramic sintered at 1800 °C for 8 h was 82.1% at the wavelength around the 1100 nm (1 mm thickness), which was close to its theoretical value. Moreover, the refractive index of the Y2O3 transparent ceramic in the temperature range from 30 °C to 400 °C were measured by the spectroscopic ellipsometry method. |
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| Keywords: | Microstructure Grain size Optical properties |
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