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Structural characterization of Er-doped Li2O-Al2O3-SiO2 glass ceramics

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Article. Published in Optical Materials. — 2008. — Vol. 30 — P. 1183–1188
Particularly favourable properties of glass ceramics are developed on the basis of two key advantages of these materials: the variation of chemical composition and of microstructure. Therefore, detailed structural and chemical information are necessary to get insight in novel glass ceramic materials. We present here two examples of Er-doped Li2O–Al2O3–SiO2, with different quantities of ZrO2, both obtained with sol–gel synthesis. Different transmission electron microscopy techniques: conventional TEM, HRTEM, and EELS are used and the results are compared with those previously obtained with XRD and Rietveld analysis. We also demonstrate the 3D reconstruction, obtained from HAADF-STEM imaging, to determine the morphology of nanosize precipitates in these composites.

Author(s): Krsmanovic R., Bals S., Bertoni G., Van Tendeloo G.

Language: English
Commentary: 1609471
Tags: Химия и химическая промышленность;Химическая технология;Технология силикатных и тугоплавких неметаллических материалов