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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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Markl, Daniel
University of Strathclyde
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2022Polymer pellet fabrication for accurate THz-TDS measurementscitations
- 2022Analysis of THz scattering of compacted granular materials using THz-TDScitations
- 2021Terahertz pulsed imaging as a new method for investigating the liquid transport kinetics of α-alumina powder compactscitations
- 2021Development of 3D printed rapid tooling for micro-injection mouldingcitations
- 2020Development and Validation of an in-line API Quantification Method Using AQbD Principles Based on UV-Vis Spectroscopy to Monitor and Optimise Continuous Hot Melt Extrusion Processcitations
- 2019Hot-melt extrusion process impact on polymer choice of glyburide solid dispersionscitations
- 2018Pharmaceutical-grade oral films as substrates for printed medicinecitations
- 2017On the role of API in determining porosity, pore structure and bulk modulus of the skeletal material in pharmaceutical tablets formed with MCC as sole excipientcitations
- 2017Optics-based compressibility parameter for pharmaceutical tablets obtained with the aid of the terahertz refractive indexcitations
- 2016Multi-methodological investigation of the variability of the microstructure of HPMC hard capsulescitations
- 2013Hot melt extrusion as a continuous pharmaceutical manufacturing processcitations
- 2013Supervisory control system for monitoring a pharmaceutical hot melt extrusion processcitations
Places of action
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article
Terahertz pulsed imaging as a new method for investigating the liquid transport kinetics of α-alumina powder compacts
Abstract
<p>Investigating the liquid transport kinetics of solid catalysts is of great importance for gaining a better understanding of the manufacturing and performance of such catalysts during reaction upon contact with the liquid. Terahertz pulsed imaging (TPI) coupled with a newly designed flow cell was used to quantify the rate of water ingress into α-alumina pellets with a range of different porosities. A wide range of compaction forces (cold compaction, 7–58 kN) and sintering conditions (no firing and sintering at 1200 and 1300 °C) was investigated to explore the optimal pellet microstructure, i.e. mechanically strong but sufficiently porous for fast liquid transport kinetics. The results confirm that both the microstructure characteristics, particularly porosity, as well as the surface properties, i.e. wettability, influence the liquid transport kinetics. Fitting the TPI penetration rates with a power law shows that the type of observed mass transport characteristics is consistent with Darcy flow. The Lucas–Washburn equation was used to calculate the hydraulic radius based on the transport data. In summary, the results demonstrate that TPI has great potential to study the liquid transport kinetics of porous ceramic catalysts and catalyst supports and that can comfortably quantify transport processes at rates of 250 μm s<sup>−1</sup> and beyond in such substrates for better quality control and optimised design and performance of such materials.</p>