Effect of complex Si4++Mg2+ additive on sintering and properties of undoped YAG 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;1. Laboratory of Thin Film Techniques and Optical Test, Xi''an Technological University, Xi’an 710032, Shaanxi, China;2. Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, School of Electronic and Information Engineering, Xi’an Jiaotong University, Xi''an 710049, China;3. National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, Anhui, China;4. Physics Department, Faculty of Science, Tanta University, Al-Geish st., Tanta 31527, Egypt;1. Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116026, China;2. Liaoning Engineering Laboratory of Special Optical Functional Crystals, College of Environmental and Chemical Engineering, Dalian University, Dalian 116622, China;3. State Key Laboratory of Light Alloy Casting Technology for High-End Equipment, Shenyang Research Institute of Foundry Co., Ltd, Shenyang 110022, China;4. Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100080, China;1. Guangxi Key Laboratory of Processing for Non–ferrous Metal and Featured Materials, Guangxi University, Nanning 530004, China;2. School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China;3. Centre of Excellence for Advanced Materials, Dongguan, China;1. Key Laboratory of Transparent Opto-functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201899, China;2. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China;3. Institute of Physics of the Czech Academy of Sciences, 16200, Prague, Czech Republic;4. King Mongkut''s University of Technology Thonburi, Bangkok 10140, Thailand;1. State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China;2. Centre of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Science, Beijing 100049, China;3. Far Eastern Federal University, 10 Ajax Bay, Russky Island, Vladivostok 690922, Russian Federation;4. Nanjing Tech University, Nanjing 211816, China;1. Department of Materials Engineering, Ben-Gurion University of the Negev, P.O.B 653, Beer-Sheva 8410501, Israel;2. Department of Electrical and Computer Engineering, Ben-Gurion University of the Negev, P.O.B 653, Beer-Sheva 8410501, Israel;3. Ilse Katz institute for Nanoscale science and Technology, Ben-Gurion University of the Negev, P.O.B 653, Beer-Sheva 8410501, Israel;4. DDR&D IMOD, Hakirya, Tel Aviv 61909, Israel |
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| Abstract: | The paper is devoted to studying of Si4++Mg2+ complex additive for obtaining transparent YAG ceramics for laser applications. Ceramics were fabricated by reactive vacuum sintering of commercial Y2O3, Al2O3 powders taken in a stoichiometric mixture with TEOS and MgO as sintering aids. Microstructure and optical properties of YAG:Si4+,Mg2+ ceramics were investigated as a function of the Si4+/Mg2+ ratio. It was found that the influence of complex additive does not correspond to the direct superposition of known Si4+- and Mg2+-induced sintering mechanisms and involves interaction between Si4+ and Mg2+ ions during sintering. It was shown that CSi/CMg> 1 provides more effective pore elimination and uniform microstructure when CSi/CMg< 1 gives more intense inhibition of grain grown which may be important for scaling the size of ceramics. |
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| Keywords: | Transparent ceramics YAG Sintering aids |
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