Results 11 to 20 of about 2,720,118 (298)

ON DEPENDENCE OF COLLOIDAL STABILITY OF MAGNETIC LIQUID ON STABILIZER DIELECTRIC CAPACITIVITY AND DISPERSION MEDIUM

open access: yesIZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA, 2017
The purpose of this article is to research the possibility of using values of stabilizer dielectric capacitivity and dispersion medium to form a colloidal stability criterion of magnetic liquid. The authors researched colloidal stability of magnetic liquids with a low-polarity base, nonionogenous SAM-stabilizer (oligoester) and hydroximag nanoparticles.
Alexander N. Bolotov   +2 more
openaire   +3 more sources

Effect of oscillating magnetic fields on freezing of a colloidal dispersion of superparamagnetic nanoparticles

open access: yesJournal of Food Engineering, 2023
Several studies suggest that single-domain biogenic magnetic nanoparticles could play a major role on the effectiveness of oscillating magnetic fields (OMFs) in improving food freezing. To evaluate the potential role of superparamagnetic biogenic particles, we performed freezing experiments in a colloidal dispersion of
Laura Otero   +5 more
openaire   +3 more sources

Preparation of stable colloidal dispersion of surface modified Fe3O4 nanoparticles for magnetic heating applications

open access: yesScientific Reports, 2023
The effect of surface modification on enhancing the magnetic heating behavior of magnetic nano fluids were investigated, for this purpose Fe3O4 nanoparticles were synthesized using co-precipitation method and surface modification was done using citric ...
Behnam Sabzi Dizajyekan   +4 more
doaj   +3 more sources

Magnetization Reversal Mechanisms in Colloidal Dispersions of Magnetite Particles [PDF]

open access: yes7th Joint MMM-Intermag Conference. Abstracts (Cat. No.98CH36275), 1998
We have studied the structural and magnetic properties of colloids consisting of different concentrations of magnetite particles dispersed in kerosene. Our data for the temperature dependence of the low field magnetization and the saturation coercive force of the samples evidenced the occurrence, in different temperature ranges, of Neel- and Brown-type
González-Miranda, J. M. (Jesús Manuel)   +7 more
openaire   +2 more sources

Field induced anisotropic cooperativity in a magnetic colloidal glass

open access: yes, 2015
The translational dynamics in a repulsive colloidal glass-former is probed by time-resolved X-ray Photon Correlation Spectroscopy. In this dense dispersion of charge-stabilized and magnetic nanoparticles, the interaction potential can be tuned, from ...
Perzynski, R   +5 more
core   +5 more sources

Dynamics of cluster formation in driven magnetic colloids dispersed on a monolayer [PDF]

open access: yesJournal of Physics: Condensed Matter, 2013
15 pages, 7 ...
Jäger, Sebastian   +2 more
openaire   +4 more sources

Overview of the phase diagram of ionic magnetic colloidal dispersions [PDF]

open access: yesBrazilian Journal of Physics, 2001
We study ionic magnetic colloidal dispersions, which are constituted of g-Fe2O3 nanoparticles dispersed in water, and stabilized with electrostatic interparticle repulsion. The phase diagram PV versus F (P: osmotic pressure, V: particle volume, F: particle volume fraction) is explored, especially in the range of high P and high F.
Cousin, F.   +4 more
openaire   +3 more sources

Particle Motion in Colloidal Dispersions: Applications to Microrheology and Nonequilibrium Depletion Interactions [PDF]

open access: yes, 2007
Over the past decade, microrheology has burst onto the scene as a technique to interrogate and manipulate complex fluids and biological materials at the micro- and nano-meter scale.
Khair, Aditya Satish
core   +1 more source

Numerical simulation of colloidal dispersion filtration: description of critical flux and comparison with experimental results [PDF]

open access: yes, 2006
During filtration via membrane processes, colloids accumulate at the porous surface leading to fouling phenomena. In this study, a rigorous simulation of momentum and mass transfer using CFD modelling has been developed to describe such an accumulation ...
Fletcher, David F.   +5 more
core   +1 more source

Numerical simulation of colloid dead-end filtration: effect of membrane characteristics and operating conditions on matter accumulation [PDF]

open access: yes, 2008
The aim of this work is to develop a simulation capability applicable to dead-end filtration of colloidal dispersions in order to investigate the effect of process conditions, such as membrane configuration and operating parameters, on filtration ...
Fletcher, David F.   +6 more
core   +1 more source

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