Effect of post-heat-treatment on the structural, spectroscopic and dissolution properties of a highly stable Er3+-doped multi-component phosphate glass
| Autor: | Nadia Giovanna Boetti, Laeticia Petit, Alexander Veber, Arnaud Lemière, Diego Pugliese |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Scanning electron microscope Analytical chemistry Hydrochloric acid 02 engineering and technology 010402 general chemistry 01 natural sciences law.invention Phosphate glass chemistry.chemical_compound law heat-treatment Materials Chemistry Spectroscopy Dissolution Glass-ceramic nucleation and growth Mechanical Engineering Doping Metals and Alloys glass-ceramic dissolution test 021001 nanoscience & nanotechnology Er3+ luminescence property 0104 chemical sciences chemistry Polymerization Mechanics of Materials 0210 nano-technology |
| Popis: | In this paper, the impact of the post-heat-treatment on the structural and spectroscopic properties as well as on the chemical durability of a thermally stable Er3+-doped phosphate glass in the system P2O5 - K2O - Al2O3 - B2O3 - BaO - PbO - La2O3 - Gd2O3 is reported. Two crystalline phases, namely La, Gd-monazite and AlKP2O7, were found to precipitate from the surface of the glass after heat-treatment, as confirmed by both X-ray Diffraction (XRD) and Scanning Electron Microscopy/Energy Dispersive X-ray (SEM/EDX) analyses. Moreover, the heat-treatment was responsible for the formation of a more polymerized glass network close to the surface crystalline layer as evidenced using micro-Raman spectroscopy. From the changes in the Er3+ optical properties, some of the Er3+ ions are suspected to enter in the crystals. Both the as-prepared and heat-treated glasses were subjected to a degradation test in hydrochloric acid (HCl) and showed a congruent and incongruent dissolution behavior, respectively. |
| Databáze: | OpenAIRE |
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