Results 201 to 210 of about 1,890,262 (246)
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Aggregation Phenomena in Water-in-Oil Emulsions
Langmuir, 1996We report the phase behavior of monodisperse water-in-oil emulsion droplets. We show that depending upon the droplet size, the surfactant concentration within the continuous oil phase, the chemical nature of the oil, and the temperature, the emulsion droplets may remain dispersed or reversibly aggregated.
F. Leal-Calderon +7 more
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Oxygen Aggregation Phenomena in Silicon
MRS Proceedings, 1987ABSTRACTOxygen precipitation in Czochralski silicon heated in the range 400–1050°C is reviewed. For T≥525° C, Si02 particles form at the normal diffusion rate and there is generation of self-interstitials. At the lower temperatures, the existence of the interfacial energy causes an apparent increase in the solid solubility as the agglomerates become ...
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Dynamic Scaling in Aggregation Phenomena
1985The dynamics of the diffusion-limited cluster-cluster aggregation model (CCA) is reviewed through the temporal evolution of the cluster size distribution ns(t), which is the number of clusters of size s at time t. In recent studies it was shown that the results of the Monte-Carlo simulations can be well represented by a dynamic scaling function of the ...
Fereydoon Family, Tamas Vicsek
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Light scattering studies of aggregation phenomena
Physica A: Statistical Mechanics and its Applications, 1995Abstract We present recent results in the field of colloidal aggregation. We first present static light scattering data of aggregation in intermediate regimes between RLCA and DLCA. In particular, we show that working with dense solutions, new and unexpected features are observed.
D. Asnaghi +3 more
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Aggregation phenomena and fractal structures
Physica A: Statistical Mechanics and its Applications, 1986Abstract In disordered aggregation processes fractal structures appear in a natural way. Many of their properties can be characterised in terms of scaling and numerous models have been introduced to describe different physical situations. “Clustering of Clusters” is a model applicable to several growth processes in colloid science and elsewhere.
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Wetting phenomena and colloidal aggregation in binary mixtures
Physical Review A, 1990Recent experiments on colloidal suspensions of silica spheres in a water-lutidine mixture close to the consolute point have revealed interesting sphere-aggregation behavior that has been linked to wetting phenomena. We carry out a theoretical analysis of the phase behavior in such mixtures and suggest that the observed behavior is consistent with ...
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Aggregation phenomena in photobicyclised pyridinium salts
New Journal of Chemistry, 2017Absorption and emission spectra of PQPBF4and BPDTQClO4in water provide evidence, supported by theoretical calculations, of H-aggregation in this solvent.
A. Aracena +4 more
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Nanoscale Studies on Aggregation Phenomena in Nanofluids
2018Understanding the microscopic dispersion and aggregation of nanoparticles at nanoscale media has become an important challenge during the last decades. Nanoscale modeling techniques are the important tools to tackle many of the complex problems faced by engineers and scientists.
Razmara, Naiyer +2 more
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Statistical physics models of aggregation phenomena
Journal of Physics A: Mathematical and General, 1997Summary: Aggregation phenomena of elementary particles into clusters is one of the most fascinating and challenging problems of statistical physics. Here we adopt a stochastic approach for the modelling of these phenomena. More precisely, we formulate the problem as follows (which we shall refer to as the `cavity' method): given a population of \(N ...
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