Controls on microstructural features during solidification of colloidal suspensions
Sign Up to like & getrecommendations! Published in 2018 at "Acta Materialia"
DOI: 10.1016/j.actamat.2018.05.049
Abstract: Abstract We present a mathematical model of the directional freezing of colloidal suspensions. Key ingredients of the model are the disjoining forces between the colloidal particles and the solidified suspending fluid, flow of the suspending… read more here.
Keywords: features solidification; microstructural features; colloidal suspensions; model ... See more keywords
Hybrid colloidal suspensions tailored as gels to remove radioactive bitumen stains.
Sign Up to like & getrecommendations! Published in 2019 at "Journal of environmental management"
DOI: 10.1016/j.jenvman.2018.11.125
Abstract: Vacuumable gels have been developed in the nuclear industry to decontaminate solid surfaces with little or no mechanical operations and without producing any liquid effluents. These gels can be spread on the contaminated surface and… read more here.
Keywords: bitumen stains; hybrid colloidal; colloidal suspensions; gels remove ... See more keywords
Impedance spectroscopy interpretation of silica and polystyrene colloidal suspensions
Sign Up to like & getrecommendations! Published in 2020 at "Materials Chemistry and Physics"
DOI: 10.1016/j.matchemphys.2020.122620
Abstract: Abstract Impedance spectroscopy differences between colloidal 295-nm silica and 300-nm polystyrene nanoparticles in deionized water are analyzed in this work. Using two different two-electrode measurement setups, designed for this application, impedance spectroscopy measurements performed directly… read more here.
Keywords: impedance; colloidal suspensions; suspension; polystyrene ... See more keywords
Colloidal Suspensions Displaying Anomalous Phoretic Behavior: Field and Mobility Reversal
Sign Up to like & getrecommendations! Published in 2022 at "Langmuir"
DOI: 10.1021/acs.langmuir.2c01316
Abstract: We show that colloidal suspensions that acquire a surface charge by capturing ions from the surrounding solution display unexpected and remarkable phoretic behavior. Depending on suspension volume fraction, a critical zeta potential ζ exists where… read more here.
Keywords: mobility reversal; mobility; phoretic behavior; colloidal suspensions ... See more keywords
Contact and macroscopic ageing in colloidal suspensions
Sign Up to like & getrecommendations! Published in 2020 at "Nature Materials"
DOI: 10.1038/s41563-020-0624-9
Abstract: The ageing behaviour of dense suspensions or pastes at rest is almost exclusively attributed to structural dynamics. Here, we identify another ageing process, contact-controlled ageing, consisting of the progressive stiffening of solid–solid contacts of an… read more here.
Keywords: colloidal suspensions; contact controlled; macroscopic ageing; controlled ageing ... See more keywords
Hydrodynamic simulations of charge-regulation effects in colloidal suspensions.
Sign Up to like & getrecommendations! Published in 2018 at "Soft matter"
DOI: 10.1039/c8sm00579f
Abstract: Self-organization of charged soft matter is of crucial importance in biology. However, it is an extremely complex phenomenon due to dynamical couplings between the hydrodynamic flow, ions, and charges of soft matter. For colloidal suspensions,… read more here.
Keywords: colloidal suspensions; charge regulation; soft matter; regulation effects ... See more keywords
Machine learning of lubrication correction based on GPR for the coupled DPD-DEM simulation of colloidal suspensions.
Sign Up to like & getrecommendations! Published in 2021 at "Soft matter"
DOI: 10.1039/d1sm00250c
Abstract: Hydrodynamic interactions have a major impact on the suspension properties, but they are absent in atomic and molecular fluids due to a lack of intervening medium at close range. To reproduce the correct hydrodynamic interactions,… read more here.
Keywords: lubrication; machine learning; correction; colloidal suspensions ... See more keywords
Probing the dynamics of turbid colloidal suspensions using differential dynamic microscopy
Sign Up to like & getrecommendations! Published in 2022 at "Soft Matter"
DOI: 10.1039/d1sm01598b
Abstract: Few techniques can reliably measure the dynamics of colloidal suspensions or other soft materials over a wide range of turbidities. Here we systematically investigate the capability of Differential Dynamic Microscopy (DDM) to characterise particle dynamics… read more here.
Keywords: dynamics turbid; differential dynamic; microscopy; colloidal suspensions ... See more keywords
Layering and packing in confined colloidal suspensions
Sign Up to like & getrecommendations! Published in 2022 at "Soft Matter"
DOI: 10.1039/d2sm00412g
Abstract: Confinement modifies the properties of a fluid. The particle density is no longer uniform but depends on the distance from the walls; parallel to the walls, layers with different particle densities form. This affects the… read more here.
Keywords: packing confined; rough walls; confined colloidal; layering packing ... See more keywords
Multiscale nature of electric-field-induced structural formations in non-colloidal suspensions.
Sign Up to like & getrecommendations! Published in 2022 at "Soft matter"
DOI: 10.1039/d2sm00617k
Abstract: Non-colloidal suspensions undergoing dipolar interactions in an electric field have been extensively studied and are also known as smart materials as they share similarities with electrorheological (ER) fluids. Although the macroscopic responses are well-documented, the… read more here.
Keywords: electric field; non colloidal; nature electric; multiscale nature ... See more keywords
Numerical and experimental analysis of the sedimentation of spherical colloidal suspensions under centrifugal force
Sign Up to like & getrecommendations! Published in 2018 at "Physics of Fluids"
DOI: 10.1063/1.5010735
Abstract: Understanding the sedimentation behaviour of colloidal suspensions is crucial in determining their stability. Since sedimentation rates are often very slow, centrifugation is used to expedite sedimentation experiments. The effect of centrifugal acceleration on sedimentation behaviour… read more here.
Keywords: sedimentation; centrifugal force; force numerical; colloidal suspensions ... See more keywords