| 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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article
Enabling fast debinding of ceramic vat photopolymerization prints with supercritical carbon dioxide as a solvent
Abstract
<p>Thermal debinding of 3D-printed ceramics that include a large fraction of polymeric binders, can take several days to perform, and often includes a long thermal pre-conditioning step. In addition, means to reduce the manufacturing time are limited. This applies for thermal debinding of dense ceramics, such as dental restorations, that have been printed using vat photopolymerization (VPP) based technologies. The thermal debinding of such ceramics can be made faster, more economical, and more ecological by extracting selected slurry components prior to thermal debinding. Thus, creating flow channels for pyrolysis gases originating from the remaining binder polymers to exit the material. Here, supercritical carbon dioxide (scCO<sub>2</sub>) extraction was used to create such gas flow channels and to study which slurry components can be dissolved from VPP printed polymeric and ceramic/polymeric parts without significant delamination, cracking, or part deformation. The scCO<sub>2</sub> extraction resulted in the creation of significant 33 vol% of nanosized porosity in a pure polymeric as-built print, and 21 vol% of nanosized porosity in a ceramic/polymeric composite print, where the ceramic powder remains in the part. These gas flow channels may allow faster thermal debinding while avoiding the creation of other defects. In the process, 90 wt.-% of the dissolvable resin fraction was extracted from the ceramic/polymeric prints already in 2 h without significant delamination, while 70 wt.-% of the dissolvable resin fraction was extracted in 2 h from the pure polymeric prints as a reference. This presents a novel, successful demonstration of a chemistry that allows both VPP printing and scCO<sub>2</sub> extraction.</p>