Erbium-doped LAS glass ceramics prepared by spark plasma sintering (SPS) |
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| Affiliation: | 1. Dipartimento di Chimica Fisica, Università di Venezia Ca’ Foscari, Via Torino 155b, 30170 Venezia-Mestre, Italy;2. Dipartimento di Chimica fisica, Universita’ di Pavia, V.le Taramelli 16, 27100 Pavia, Italy;3. Dipartimento di Fisica and Istituto Nazionale di Fisica della Materia, Università di Roma Tor Vergata, Via della Ricerca Scientifica 1, 00133 Roma, Italy;4. Department of Chemical Engineering and Materials Science, University of California, Davis, USA;1. School of Materials Science and Engineering, Harbin Institute of Technology (Weihai), Weihai, 264209, PR China;2. School of Science, Lanzhou University of Technology, Lanzhou, 730050, PR China;3. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, PR China;4. School of Materials Science and Engineering, Shandong University of Technology, Zibo, 255049, Shandong, PR China;1. Nara Institute of Science Technology (NAIST), 8916-5 Takayama-cho, Ikoma-shi, Nara, 630-0192, Japan;2. Tokuyama Corporation, 1-1 Mikage-cho, Shunan-shi, Yamaguchi 745-8648, Japan;1. School of Materials Science and Engineering, Central South University, Changsha 410083, China;2. Key Laboratory of Power Batteries and Relative Materials, Jiangxi Prov., Jiangxi University of Science & Technology, Ganzhou 341000, China;1. Engineering Research Center of Electronic Information Materials and Devices, Ministry of Education, Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin, 541004, PR China;2. Division of Nanobiomedicine and I-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China;3. ARC Hub for Computational Particle Technology, Monash University, Clayton, Victoria, 3800, Australia;1. Department of Materials Engineering, Ben-Gurion University of the Negev, P.O.B 653, Beer-Sheva, 84105, Israel;2. Department of Materials Science & Engineering, Drexel University, Philadelphia, PA, 19104, USA;1. School of Materials Science and Engineering, Central South University, Changsha 410083, China;2. Key Laboratory of Power Batteries & Relative Materials, Jiangxi University of Science & Technology, Ganzhou, Jiangxi, 341000, China |
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| Abstract: | Dense nanocrystalline glass ceramics of the Li2O–Al2O3–SiO2 (LAS) system were obtained by spark plasma sintering (SPS) of powders prepared by sol–gel method. The low thermal expansion LAS glass ceramic was chosen as host matrix for erbium ions. ZrO2 was added both as a nucleating agent and as a possible good environment for the rare earth. The developed crystalline phases were analysed by X-ray diffraction (XRD) and the amorphous phase was quantified. Scanning and transmission electron microscopy (SEM, TEM) was used to investigate the microstructure. A different behaviour during the crystallisation process was observed between the sample prepared through the sintering of powders and the glass produced by the melting technique. A photoluminescence characterisation was also performed. |
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