| 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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Soraru, Gian Domenico
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2024On the structure and properties of hydrothermally toughened soda–lime silicate float glasscitations
- 2023Viscosity, Boson Peak and Elastic Moduli in the Na2O-SiO2 Systemcitations
- 2023Viscosity, Boson Peak and Elastic Moduli in the Na2O-SiO2 Systemcitations
- 2023Low-temperature Thermal Energy Storage with Polymer-Derived Ceramic Aerogelscitations
- 2022Synthesis and Characterization of High Surface Area Transparent SiOC Aerogels from Hybrid Silicon Alkoxide: A Comparison between Ambient Pressure and Supercritical Dryingcitations
- 2022Thermochemical heat storage performances of magnesium sulphate confined in polymer-derived SiOC aerogelscitations
- 2022Polymer-derived ceramic molten metal filterscitations
- 2021Synthesis and thermal evolution of polysilazane-derived SiCN(O)aerogels with variable C content stable at 1600°Ccitations
- 2020Polymer-derived Si3N4 nanofelts for flexible, high temperature, lightweight and easy-manufacturable super-thermal insulatorscitations
- 2018Breath figures decorated silica-based ceramic surfaces with tunable geometry from UV cross-linkable polysiloxane precursorcitations
Places of action
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article
On the structure and properties of hydrothermally toughened soda–lime silicate float glass
Abstract
Hydrothermal treatments of soda–lime silicate glass cause a remarkable improvement in the resistance to flaw formation with an increase of the critical load to ≈1 kgf. This remarkable effect is achieved even if the reaction layer between the glass and water solution is well below 1 μm. Positron Doppler broadening spectroscopy (DBS) reveals that the hydrothermal treatment causes a drop in the free volume of the glass network near the surface connected with the diffusion of molecular water whose presence was further confirmed by Fourier transformed infrared (FTIR) spectroscopy and secondary ion mass spectrometry (SIMS). Based on FTIR and SIMS, we also argue that the hydrothermal ion exchange is a double-step process: first H+ substitutes Na+ in the network, and following molecular water permeates the system. Moreover, we show that the presence of water in the network is fundamental in stabilizing the modified glass surface leading to toughening. Once molecular water is released, the network is quickly polymerized and becomes more brittle. Hydrothermal toughening is only a partially reversible process, once water is released it is not possible to reobtain the same properties with a second treatment. Finally, it is shown that air and tin side of the float glass perform differently as a result of different water diffusion kinetics related to dissimilarities in the network density.