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Impact of Wetting to the Agglomeration of Dispersed Particles in an Aqueous Medium
Author(s) -
Fritzsche Jörg,
Teichmann Jakob,
Heuzeroth Fabian,
van den Boogaart Karl Gerald,
Peuker Urs Alexander
Publication year - 2013
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201300120
Subject(s) - wetting , economies of agglomeration , materials science , filtration (mathematics) , contact angle , ceramic , composite material , particle (ecology) , aluminium , aqueous solution , particle size , chemical engineering , chemistry , engineering , statistics , oceanography , mathematics , geology
To produce high quality casted steel or aluminum products the step of filtration is essential. To improve this filtration process an experimental study to estimate the influence of the wettability is carried out using a model system. With this model system an atomic force microscope (AFM) study to measure the adhesive force is done. The results of this study are used to simulate the agglomeration behavior of a dynamic particle system. To confirm the results of the AFM study and the computer simulation, filtration experiments are realized. These experiments as well as the simulations show a significant effect of the wetting behavior on the filtration efficiency. A high contact angle between the solid and liquid leads to an agglomeration of the impurities and with it to larger particle sizes. This finally results in a significant higher retention rate within the ceramic filter.