| 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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Levänen, Raimo Erkki
Tampere University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (37/37 displayed)
- 2024Upcycling glass wool and spodumene tailings in building ceramics from kaolinitic and illitic claycitations
- 2024Enabling fast debinding of ceramic vat photopolymerization prints with supercritical carbon dioxide as a solventcitations
- 2024Vat photopolymerization of biomimetic bone scaffolds based on Mg, Sr, Zn-substituted hydroxyapatitecitations
- 2024Corrosion mechanisms of Al-alloyed hot-dipped zinc coatings in wet supercritical carbon dioxide
- 2023Evolution of alumina phase structure in thermal plasma processingcitations
- 2022Applications of electron microscopy in additive manufacturing of porous multi-ceramics structures
- 2021Stereolithography as a manufacturing method for a hierarchically porous ZSM-5 zeolite structure with adsorption capabilitiescitations
- 2021Fabrication of self-supporting structures made of washcoat materials (γ-Al2O3-CeO2) by ceramic stereolithographycitations
- 2021Online monitoring of polysaccharide solution concentration by electromagnetic field, electrical conductivity and spectrophotometry measurementscitations
- 2021Aspects on Early-Stage Corrosion of Different Zinc Alloyscitations
- 2021In-line monitoring of ceramic resins used in stereolithography via high-frequency dielectric analysis
- 2020Thermal stability of one-part metakaolin geopolymer composites containing high volume of spodumene tailings and glass woolcitations
- 2020Utilizing mixed-mineralogy ferroan magnesite tailings as the source of magnesium oxide in magnesium potassium phosphate cementcitations
- 2020Time-of-flight secondary ion mass spectrometry study of zinc carbonation in the presence of stable oxygen-18 and deuterium isotopescitations
- 2020A comprehensive review of the photopolymerization of ceramic resins used in stereolithographycitations
- 2020Assessment of pitting corrosion in bare and passivated (wet scCO2-induced patination and chemical passivation) hot-dip galvanized steel samples with SVET, FTIR, and SEM (EDS)citations
- 2020The thermal contact resistance of a steel-ceramic interface with oxide intermediatescitations
- 2020Evaluation of surface activity of hot-dip galvanized steel after alkaline cleaningcitations
- 2019Highly ductile amorphous oxide at room temperature and high strain ratecitations
- 2019Spodumene tailings for porcelain and structural materialscitations
- 2019Recycling lithium mine tailings in the production of low temperature (700–900 °C) ceramicscitations
- 2019Mining tailings as raw materials for reaction-sintered aluminosilicate ceramicscitations
- 2019Three-dimensional printing of zirconia: characterization of early stage material propertiescitations
- 2018The effects of laser patterning 10CeTZP-Al2O3 nanocomposite disc surfacescitations
- 2018Convenient extraction method for quantification of thin zinc patina layerscitations
- 2018Problematics of friction in a high-speed rubber-wheel wear test system: A case study of irregularly rough steel in water lubricated contactcitations
- 2017Supercritical carbon dioxide treatment of hot dip galvanized steel as a surface treatment before coatingcitations
- 2017Reaction heat utilization in aluminosilicate-based ceramics synthesis and sintering
- 2017Investigation of long-term chemical stability of structured ZnO films in aqueous solutions of varying conditionscitations
- 2016Compression curve analysis and compressive strength measurement of brittle granule beds in lieu of individual granule measurementscitations
- 2015Passive resonance sensor based method for monitoring particle suspensionscitations
- 2015Evaluation of crushing strength of spray-dried MgAl2O4 granule bedscitations
- 2015Enhanced photoactive and photoelectrochemical properties of TiO2 sol-gel coated steel by the application of SiO2 intermediate layercitations
- 2015Influence of application method and sintering temperature on porosity and thermal conductivity of two commercial silicon carbide based castables
- 2014Surface Processing of Zirconia Ceramics by Laser
- 2014High-speed Sliding Friction of Laser-textured Silicon Nitride in Water against Rubber
- 2004Alumina membranes - Colloidal processing and evolution of functional properties
Places of action
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thesis
Alumina membranes - Colloidal processing and evolution of functional properties
Abstract
In this thesis the whole preparation cycle of the ceramic alumina membrane is studied. Study is focused on colloidal processing with different additives, modeling of absorption on multiplayer substrate and on layer growth during dip coating and the effect of colloidal processing on growth kinetics. Other focus is laid on sintering and its effect on functional properties such as pore size, pore morphology and permeability. The prepared membrane performance is studied in different industrial processes.Studies were done with submicron alumina powders having different purity grades. The deflocculation behaviour was studied with electrostatic and electrosteric mechanisms by using pH control and a polyelectrolyte as dispersant. The verification of absorption model led to finding that the wetting behavior of solution deviates from the prediction of Young equation. The effect of reduced capillary pressure with polyvinyl alcohol (PVA) addition can be clearly seen from layer growth rates. The used polyelectrolyte, sodium polymetacrylic acid (Na-PMAA) did not fully deflocculated the dip coating slip and resulted in fast and hard-to-control layer growth and highly porous membrane layer.Sintering studies showed that at high sintering temperatures, where shrinkage should occur, the pore size coarsens and the size distribution broadens for supported particulate film, while the macroscopic densification is almost insignificant. Small deviations from ideal packing are suggested to lead to local densification, which causes pore size growth and broadening of distribution. Local densification also leads to pore channel straightening, which was found in analysis of permeability values.The alumina membranes were tested at several applications. The filtration tests were conducted for different industrial wastewaters. Feeds varied from paper mill wastewaters, stone cutting wastewaters, oily waters to dwell waters.