| 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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Veiga, João Pedro
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2020Testing the feasibility of titanium dioxide sol-gel coatings on portuguese glazed tiles to prevent biological colonizationcitations
- 2018Thermal characteristics and crystallization behavior of zinc borosilicate glasses containing Nb2O5citations
- 2017An experimental approach for smelting tin ores from Northwestern Iberiacitations
- 2016Formation and crystallization of zinc borosilicate glassescitations
- 2014Synthesis of Niobium Doped Zinc Borosilicate Glass-ceramics
- 2013Rare-earth doped phosphate glasses
- 2013Optical and structural characterization of samarium and europium-doped phosphate glassescitations
- 2013Effect of Phosphogypsum on the Clinkerization Temperature of Portland Cement Clinkercitations
- 2012Sintering,Crystallization and Dielectric Behavior of Barium Zinc Borosilicate Glasses - Effect of Barium Oxide substitution for Zinc Oxidecitations
- 2012Degradation of dental ZrO2-based materials after hydrothermal fatigue. Part I: XRD, XRF, and FESEM analysescitations
- 2010Characteristics Of The Blast Furnace Dust In Accordance With The Conditions Imposed By The Valorisation Solution
- 2010Artificial Aging of Zr-based Dental Materials - A Pilot Study
Places of action
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document
Synthesis of Niobium Doped Zinc Borosilicate Glass-ceramics
Abstract
The niobium doped oxide glass system, Nb2O5-ZnO-B2O3-SiO2, has relevantdielectric and photoluminescence properties. Glasses with the composition ZnOB2O3-SiO2 (ZBS), with small additions of Nb2O5 (N), N=0, 2.5, 5, 7.5 and 10mol%, were prepared using melt-quenching method. Two series of glasscompositions (S1 and S2) were considered. Series S1, where the contents of ZnO,B2O3 and SiO2 were fixed at 60, 30 and 10 (mol %), respectively, and a secondseries S2, where ZnO, B2O3 and SiO2 were fixed at 60, 20 and 20 (mol %). Thermalproperties such as glass transition and glass crystallization temperatures weredetermined by DSC. Increased amounts of Nb2O5 decreased the glass transitiontemperature in both series of glasses. However, the effect of Nb2O5 addition on theonset crystallization temperature depended on the composition of the base glass.Controlled heat-treatments were performed in order to study the phase formation inthe glasses and the crystalline phases were identified by X-ray diffraction. Themorphology of the precipitated phases was evaluated through SEM imaging.