| 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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Monteiro, R. C. C.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (36/36 displayed)
- 2018Sintering behaviour of a ZnO waste powder obtained as by-product from brass smeltingcitations
- 2018Bismuth and lead oxides codoped boron phosphate glasses for Faraday rotatorscitations
- 2018Thermal characteristics and crystallization behavior of zinc borosilicate glasses containing Nb2O5citations
- 2017Characterization of CdS-doped glass films obtained by pulsed laser deposition
- 2017Effect of ZnF2 addition on the crystallization behaviour of a zinc borosilicate glasscitations
- 2016Formation and crystallization of zinc borosilicate glassescitations
- 2015Crystallization of lithium disilicate-based multicomponent glasses - effect of silica/lithia ratiocitations
- 2015Brass smelting dust as a source of ZnO in the production of targets used in magnetron sputtering thin film deposition
- 2015Use of different inorganic solid wastes to produce glass foams
- 2014Crystallization kinetics of a barium-zinc borosilicate glass by a non-isothermal methodcitations
- 2014Phase transformation and microstructural evolution after heat treatment of a terbium-doped lithium–aluminum phosphate glasscitations
- 2014Synthesis of Niobium Doped Zinc Borosilicate Glass-ceramics
- 2014Crystallization and microstructure of Eu3+-doped lithium aluminophosphate glasscitations
- 2014Glass transition and crystallization kinetics of a barium borosilicate glass by a non-isothermal methodcitations
- 2014A novel dental restorative glass-ceramic based on fluorcanasite
- 2013Rare-earth doped phosphate glasses
- 2013Study of the non-isothermal crystallization kinetics of SiO2-Li2O based glasses by DSC
- 2013Investigations on optical, structural and thermal properties of phosphate glasses containing terbium ionscitations
- 2013Crystallization kinetics terbium-doped aluminophosphate glass studied by DSC, XRD and SEM
- 2013Preparation method and thermal properties of samarium and europium-doped alumino-phosphate glasses.citations
- 2013Optical and structural characterization of samarium and europium-doped phosphate glassescitations
- 2013Structural studies of Ba-B-Si-Zn glasses
- 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
- 2012Structural, electrical and thermal properties of borosilicate glass-alumina compositescitations
- 2010Structure and Morphology Study of Cobalt Oxide Doped Silica Nanocomposite Films
- 2010Artificial Aging of Zr-based Dental Materials - A Pilot Study
- 2008Mechanical characteristics of clay structural ceramics containing coal fly ashcitations
- 2007Valorização das escórias da celulose do Caima por técnicas de vitrificação
- 2007Glass-ceramics produced from incinerated municipal solid waste
- 2006Optical properties of cobalt oxide films by a dipping sol-gel processcitations
- 2004The effect of aluminum concentration on the crystallization of sol-gel derived Al:ZnO thin films
- 2004Recycling of coal fly ash by ceramic processing
- 2002Synthesis, characterization, and processing of cordierite-glass particles modified by coating with an alumina precursorcitations
- 2000Pressureless sintering of alumina-glass compositescitations
Places of action
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article
Effect of ZnF2 addition on the crystallization behaviour of a zinc borosilicate glass
Abstract
A series of zinc borosilicate glasses with a molar composition (65-x) ZnO-x ZnF2-15B(2)O(3)-20SiO(2), where x ranged from 0 to 5 mol%, were prepared by a melt quenching technique. The effect of zinc fluoride (ZnF2) substitution for ZnO on the structural, thermal and crystallization features of the glasses was investigated. Structural information via vibration modes was provided by FTIR analysis that revealed an increased band definition and intensity for the highest content of ZnF2. The incorporation of F- ions caused the Si-O-Si bond breakage and appearance of non-bridging oxygens in the network. DTA results indicated that ZnF2 addition decreased slightly the onset and peak crystallization temperatures, lowering the thermal stability of the glasses. XRD analysis of glasses heat-treated at 615 C revealed the formation of willemite (Zn2SiO4) crystals, which was enhanced in glasses containing the highest ZnF2 addition. Microstructural observations by SEM of heat-treated glasses confirmed that the amount and the mean size of willemite crystals precipitated within the glass matrix increased with the addition of ZnF2, which acted as a crystallization promoting agent.