| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Veber, A.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2022Transparent Yb3+ doped phosphate glass-ceramicscitations
- 2021Coupling raman, brillouin and nd<sup>3+</sup> photo luminescence spectroscopy to distinguish the effect of uniaxial stress from cooling rate on soda-lime silicate glasscitations
- 2021Cerium speciation in silicate glasses: Structure-property relationshipscitations
- 2020Relaxation behavior of densified sodium aluminoborate glasscitations
- 2020Synthesis and properties of Er-doped KPO3-Ca(PO3)2glass and glass-ceramiccitations
- 2020Novel ER3+ doped tellurite glass-ceramics
- 2020Development of magnesium-aluminum-silicate glass-ceramics nucleated with Nb<inf>2</inf>O<inf>5</inf>citations
- 2020Surface Probing of Ultra-Short-Pulse Laser Filament Cut Window Glass and the Impact on the Separation Behaviorcitations
- 2018Effect of thermally induced structural disorder on the chemical durability of International Simple Glasscitations
- 2018Optical Properties and Bismuth Redox in Bi-Doped High-Silica Al-Si Glassescitations
- 2018Combined Differential scanning calorimetry, Raman and Brillouin spectroscopies: A multiscale approach for materials investigationcitations
- 2018Devitrification behavior of sol-gel derived ZrO<sub>2</sub>-SiO<sub>2</sub> rare-earth doped glasses: Correlation between structural and optical propertiescitations
- 2017Bismuth optical properties and redox in aluminosilicate glasses
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article
Relaxation behavior of densified sodium aluminoborate glass
Abstract
In this work, we study the relaxation behavior of a densified sodium aluminoborate glass by means of coupled Raman spectroscopy, Brillouin spectroscopy, and differential scanning calorimetry analyses. First, we show that the changes in elastic properties upon densification are largely associated with structural modifications in the glass network at short- and medium-range orders. Then, the evolution of the structural and elastic properties of the densified glass has been monitored in situ in the coupled DSC-Brillouin-Raman setup during isothermal annealing at different temperatures below the glass transition temperature. The stretched exponential function is found to well describe the observed relaxation kinetics, however, the stretching factor β varies non-monotonically with temperature. In contrast, the Arrhenius behavior of the characteristic decay times is deduced by lifetime distribution analysis, revealing three different relaxation processes with typical activation energies of 170±25, 200±5, and 280±15 kJ/mol. The relative contributions of these processes to the overall relaxation kinetics are found to vary with the temperature as well as the type of parameter considered (structural, elastic, or thermal), and hence, the relaxation kinetics cannot be properly understood using the stretched exponent function. The possible origins of the different relaxation processes are discussed.