Yb doped MgO transparent ceramics generated through the SPS method |
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| Affiliation: | 1. Kazuo Inamori School of Engineering, New York State College of Ceramics, Alfred University, Alfred, NY 14802, USA;2. Institute of Low Temperature and Structure Research, Polish Academy of Sciences in Wroc?aw, W. Trzebiatowski Institute, ul. Okolna 2, 50–422 Wroclaw, Poland;1. National Renewable Energy Laboratory, 16000 Denver West Parkway, Golden, CO, USA;2. Colorado School of Mines, 1500 Illinois Ave., Golden, CO, USA;1. Joint Glass Centre of the IIC SAS, TnUAD and FChPT STU, Trencin, Slovak Republic;2. Centre for Functional and Surface Functionalised Glass, Alexander Dubcek University of Trencin, Trencin, Slovak Republic;3. Institute of Inorganic Chemistry, Dúbravská cesta 9, 845 36 Bratislava 45, Slovak Republic;4. Institute of Materials Research, Slovak Academy of Sciences, Watsonova 47, 040 01 Ko?ice, Slovak Republic;1. CEITEC BUT, Brno University of Technology, Purkynova 123, 612 00 Brno, Czech Republic;2. FunGlass, Alexander Dub?ek University of Tren?ín, ?tudentská 2, 911 50 Tren?ín, Slovak Republic;3. Institute of Physics of Materials, Academy of Sciences of the Czech Republic, Zizkova 22, 616 00 Brno, Czech Republic;4. Institute of Materials Science and Engineering, Brno University of Technology, Technicka 2, 616 69 Brno, Czech Republic;5. Joint Glass Centre of the IIC SAS, TnUAD and FChFT STU, ?tudentská 2, 911 50 Tren?ín, Slovak Republic;1. College of Physics, Sichuan University, Chengdu, 610064, PR China;2. Sichuan University of Arts and Science, Dazhou, 635000, PR China;3. Key Laboratory of High Energy Density Physics of Ministry of Education, Sichuan University, Chengdu, 610064, Sichuan, PR China;4. Key Laboratory of Radiation Physics and Technology of Ministry of Education, Sichuan University, Chengdu, 610064, Sichuan, PR China |
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| Abstract: | Yb doped (0, 0.02, 0.1 and 0.5 at%) MgO transparent ceramics were synthesized through spark plasma sintering (SPS) at the relatively low temperature of 1100 °C for 5–60 min under a pressure of 105 MPa. The effects of dopant concentration and sintering holding time on the densification and microstructure evolution of MgO ceramics were investigated. All ceramics reached a relative density greater than 99.20%. The 0.02% Yb-doped MgO ceramic sintered at 1100 °C for 60 min showed the highest in-line transmittance, of 80% at 1030 nm, a value close to that of MgO single crystals. Yb dopant improved the transmittance, degree of densification and control of grain growth. Herein, the influence of Yb doping on the crystalline phase and microstructure was explored, and the photoluminescence properties of Yb in transparent MgO ceramics were investigated. |
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| Keywords: | Transparent ceramics Magnesium oxide Sintering aids Spark plasma sintering Optical properties |
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