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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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| Azam, Siraj |
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| Ospanova, Alyiya |
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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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Luiten-Olieman, Mieke W. J.
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Topics
Publications (7/7 displayed)
- 2024Effect of Long-Term Sodium Hypochlorite Cleaning on Silicon Carbide Ultrafiltration Membranes Prepared via Low-Pressure Chemical Vapor Depositioncitations
- 2020Highly permeable silicon carbide-alumina ultrafiltration membranes for oil-in-water filtration produced with low-pressure chemical vapor depositioncitations
- 2019New Generation of Mesoporous Silica Membranes Prepared by a Stöber-Solution Pore-Growth Approachcitations
- 2012Towards a generic method for inorganic porous hollow fibers preparation with shrinkage-controlled small radial dimensions, applied to Al2O3, Ni, SiC, stainless steel, and YSZcitations
- 2011Porous stainless steel hollow fiber membranes via dry-wet spinningcitations
- 2011Carbon nanofibers in catalytic membrane microreactorscitations
- 2011Porous stainless steel hollow fibers with shrinkage-controlled small radial dimensionscitations
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article
Porous stainless steel hollow fiber membranes via dry-wet spinning
Abstract
Porous stainless steel hollow fibers have been prepared via the dry–wet spinning process, based on phase inversion of a particle loaded polymer solution, followed by sintering. The morphology of the green fibers combines sponge like structures and macro voids, and is related to the dynamics of the phase inversion process. The morphology can be tuned by changing the spinning conditions and the composition of the spinning mixture. In analogy to their ceramic counterparts the morphology of the stainless steel fibers is preserved during sintering, apart from shrinkage due to densification. At a length scale comparable to the diameter of the steel particles the microstructure and related pore size distribution are more strongly affected by the sintering temperature, as compared to their ceramic counterparts. Sintering the stainless hollow fibers at temperatures > 1100 °C results in a sharp decrease in nitrogen permeance and an increase in bending strength, due to densification. The strength (∼1 GPa) and nitrogen permeance (0.1 mmol m−2 Pa−1 s−1 at 21 °C) of stainless steel fibers sintered at 1050–1100 °C are superior as compared to their ceramic counterparts. The excellent properties of the stainless steel hollow fibers make them suitable as membrane (supports) for applications involving harsh environments.