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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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Więcław-Midor, Anna
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Publications (3/3 displayed)
- 2020The Effect of Silica-Filler on Polyurethane Adhesives Based on Renewable Resource for Wood Bondingcitations
- 2020Influence of core‐shell structure on the cure depth in photopolymerizable alumina dispersioncitations
- 2018Surface modification of alumina powder to prevent exfoliation of samples fabricated by gelcasting
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article
Surface modification of alumina powder to prevent exfoliation of samples fabricated by gelcasting
Abstract
The aim of the work was to study the influence of the Al2O3 surface modification by 2-hydroxyethyl acrylate (HEA) on the properties of ceramic green and sintered bodies. As a reference, non-modified Al2O3 was used in the research. The modified Al2O3 powder was characterized by TEM and thermal analysis coupled with mass spectrometry. The rheological behaviour of slurries containing modified and non-modified alumina powder were measured,as well as the properties of green bodies. The proposed surface modification allows to obtain green ceramic samples of homogenous microstructure, high mechanical strength and high density. Sintered materials presented high density and favourable values of Vickers hardness. The obtained results showed that the presence of HEA on the powder surface partially prevents the negative effect of oxygen inhibition in gelcasting of alumina. Oxygen inhibition is well known problem in gelcasting but still not fully overcome for samples formed in air atmosphere.