Eu2+ ions and CaF2-containing transparent glass-ceramics
| Autor: | P. S. Flower, J Fu, R. M. Brown, John M. Parker |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Absorption spectroscopy
Chemistry Mechanical Engineering Doping Analytical chemistry Mineralogy Condensed Matter Physics Mechanics of Materials Transmission electron microscopy Differential thermal analysis visual_art Phase (matter) X-ray crystallography visual_art.visual_art_medium General Materials Science Ceramic Glass transition |
| Zdroj: | Materials Research Bulletin. 37:1843-1849 |
| ISSN: | 0025-5408 |
| Popis: | Transparent glass-ceramics have been prepared by heat-treating 45SiO 2 –20Al 2 O 3 –10CaO–25CaF 2 glasses doped with Eu 2+ ions (in mol%). The precipitated crystalline phase in the glass-ceramics was CaF 2 . TEM observation showed the precipitated crystalline phase had a size of 11–18 nm and dispersed in the amorphous phase without clustering. Fluorescence measurements showed that Eu 2+ ions entered into the CaF 2 crystalline phase and gave a much stronger emission in the glass-ceramics than in the corresponding glass. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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