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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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Zhang, D.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (30/30 displayed)
- 2024Purely two-dimensional vortex matter in infinite-layer nickelates
- 2023Characterization of black slags obtained during smelting in the electric arc furnace from SIDERPERU following reduction
- 2022Wettability of carbon nanotube-grafted carbon fibers and their interfacial properties in polypropylene thermoplastic compositecitations
- 2022Carbothermal reduction of mill scales formed on steel billets during continuous casting
- 2022No ball milling neededcitations
- 2022Characterization of black slags obtained during smelting in the electric arc furnace from SIDERPERU following reduction
- 2021Carbothermal reduction of mill scales formed on steel billets during continuous casting
- 2021Microstructures and mechanical properties of high strength Ti-XAl-2Fe-3Cu alloys fabricated by powder compact extrusioncitations
- 2020Bio-inspired multi-resonant acoustic devices based on electrospun piezoelectric polymeric nanofibres
- 2019Biocompatible Carbon Nanotube-Based Hybrid Microfiber for Implantable Electrochemical Actuator and Flexible Electronic Applications.citations
- 20184-terminal and 2-terminal tandem modules in bifacial operation: model analysis and comparison:
- 2018Highly efficient and stable flexible perovskite solar cells with metal oxides nanoparticle charge extraction layers
- 2018Phase evolution and electrical behaviour of samarium-substituted bismuth ferrite ceramics
- 2015Amorphous silicon solar cells on nano-imprinted commodity paper without sacrificing efficiency
- 2015Amorphous silicon solar cells on nano-imprinted commodity paper without sacrificing efficiencycitations
- 2014Microstructural evolution of cryomilled Ti/Al mixture during high-pressure torsioncitations
- 2014Morphology related photodegradation of low-band-gap polymer blendscitations
- 2014Magnetic domain structure in nanocrystalline Ni-Zn-Co spinel ferrite thin films using off-axis electron holographycitations
- 2012In-vitro Degradation and Bioactivity of Tailored Amorphous Multi Porous Scaffold Structurecitations
- 2012Modification of Sintered Titanium alloys by Hot Isostatic Pressingcitations
- 2011Recent progress in understanding physical and chemical properties of African and Asian mineral dustcitations
- 2011Growth of doped silicon nanowires by pulsed laser deposition and their analysis by electron beam induced current imagingcitations
- 2010High-Resolution spectroScopic mapping of the chemical contrast from nanometer domains in P3HT:PCBM organic blend films for Solar-Cell applications bycitations
- 2009Parabolic mirror-assisted tip-enhanced spectroscopic imaging for non-transparent materialscitations
- 2009Factors affecting in vitro bioactivity of glassescitations
- 2008Influence of fluid circulation on in vitro reactivity of bioactive glass particlescitations
- 2008In situ pH within particle beds of bioactive glassescitations
- 2007Control of the forming properties of bioactive glasses
- 2007Fabrication and characterisation of barium strontium titante thick film device structures for microwave applicationscitations
- 2004Piezoelectric 1-3 composites for high frequency ultrasonic transducer applicationscitations
Places of action
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article
Control of the forming properties of bioactive glasses
Abstract
Bioactive glass products used in clinical applications are fairly simple inform, being mostly plates or crushed glass. Novel applications require a versatile palette of products ranging from fibres and porous bodies to composites or moulded implants with special product dimensions. However, the low silica and the high lime content of bioactive glasses make them sensitive to the forming process used within the viscosity range similar to 10(8)-10(3) dPas. Bioactive glasses show two distinct responses depending on the primary phase formed on crystallisation. Glasses which form sodium calcium silicate crystals possess low glass stability, and crystallise around 100 C above the glass transition. Glasses, which form wollastonite crystals, crystallise above 800 C, thus allowing for example viscous flow sintering of crushed glass to produce porous implants. Fibre drawing also strongly interferes with crystallisation. Crystalline phases at liquidus are the same as those formed on heating the glass. Sodium calcium silicate phases formed through bulk crystallisation at low viscosities inhibit fibre drawing. Wollastonite crystals are formed through surface nucleation at viscosities high enough to allow drawing of continuous fibres. Wollastonite type glasses are interesting especially for special products with a high surface area to volume ratio. The lower bioactivity and higher chemical durability of wollastonite glasses in such special products may be valuable for some clinical applications.