High-resolved X-ray tomography scan of dewatered filter cakes and sessile droplets

Subtitle: contact angle measurement of sessile droplets and liquid bridges within the pore space of a dewatered filter cake

CF_035_055200_022a (in-situ flow cell cake dewatering to irreducible saturation, solid fraction 35 vol.-% of Al2O3, 55 µm < x < 200 µm, measurement 022a, FOV 800x800 µm², above filter cloth, centre of filter cake) (19.75Mb)

CF_035_055200_023a (in-situ flow cell cake dewatering to irreducible saturation, solid fraction 35 vol.-% of Al2O3, 55 µm < x < 200 µm, measurement 023a, FOV 800x800 µm², above filter cloth, centre of filter cake) (19.43Mb)

CF_035_055200_023b (in-situ flow cell cake dewatering to irreducible saturation, solid fraction 35 vol.-% of Al2O3, 55 µm < x < 200 µm, measurement 023b, FOV 800x800 µm², 3 mm above filter cloth, centre of filter cake) (19.43Mb)

CF_035_055200_023c (in-situ flow cell cake dewatering to irreducible saturation, solid fraction 35 vol.-% of Al2O3, 55 µm < x < 200 µm, measurement 023c, FOV 800x800 µm², 6 mm above filter cloth, centre of filter cake) (19.43Mb)

CF_035_055200_023d (in-situ flow cell cake dewatering to irreducible saturation, solid fraction 35 vol.-% of Al2O3, 55 µm < x < 200 µm, measurement 023d, FOV 800x800 µm², beneath surface, centre of filter cake) (19.45Mb)

MR70_Gly_99.5_stat_02 (sessile glycerol droplet on flat rough AL2O3 surface, FOV 4x4 mm², measurement 02) (1.174Gb)

MR70_Gly_99.5_stat_03 (sessile glycerol droplet on flat rough AL2O3 surface, FOV 4x4 mm², measurement 03) (1.224Gb)

MR70_Gly_99.5_stat (sessile glycerol droplet on flat rough AL2O3 surface, FOV 4x4 mm², measurement 01) (1.237Gb)

Saphir_Gly_99.5_stat_02 (sessile glycerol droplet on flat smooth AL2O3 surface, FOV 4x4 mm², measurement 02) (1.182Gb)

Saphir_Gly_99.5_stat_03 (sessile glycerol droplet on flat smooth AL2O3 surface, FOV 4x4 mm², measurement 03) (1.122Gb)

Saphir_Gly_99.5_stat (sessile glycerol droplet on flat smooth AL2O3 surface, FOV 4x4 mm², measurement 01) (1.103Gb)

data-license.txt (CC-BY-4.0) (12.81Kb)

Date

2021

Author

Löwer, Erik

Metadata

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Abstract

X-ray tomography image of dewatered filter cakes at irreducible saturation. The initial slurry contains Al2O3 particles suspended in a potassium iodide-glycerol solution. These were separated by cake-forming filtration with subsequent dewatering. All filtration and dewatering experiments took place in an in situ apparatus within the Zeiss Xradia 510 X-ray microscope. High resolution scans are acquired in the equilibrium state after dewatering at different locations within the cake structure to measure the local three-phase contact angle. The data are validated by sessile droplet experiments on substrates of the same material within the X-ray microscope.

URI

https://opara.zih.tu-dresden.de/xmlui/handle/123456789/1964
http://dx.doi.org/10.25532/OPARA-124

Collections

Publication E: Wetting behavior of porous structures: Three-dimensional determination of the contact angle after filter cake dewatering using X-ray microscopy [1]