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Dipole interaction during agglomeration of aerosol particles (Articolo in rivista)

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Dipole interaction during agglomeration of aerosol particles (Articolo in rivista) (literal)

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Onischuk A.A. 1, di Stasio S. 2, Strunin V.P. 1, Karasev V.V. 1, Panfilov V.N. 1 (2000)
Dipole interaction during agglomeration of aerosol particles
in Journal of aerosol science
(literal)

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Onischuk A.A. 1, di Stasio S. 2, Strunin V.P. 1, Karasev V.V. 1, Panfilov V.N. 1 (literal)

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1) Institute of Chemical Kinetics and Combustion, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia; 2) Istituto Motori,CNR, Napoli, Italy. (literal)

Titolo

Abstract

Irregular aerosol agglomerates of small primary particles are formed in different natural and industrial processes. These agglomerates have mass fractal-like structure, i.e., the mass M of the agglomerate is related with the agglomerate radius R and sub-unit size a. Some experimental contributions report on too small values of the mass fractal dimension Df for soot [1-3], silica [4], titania [5]. Long range attractive interactions between colliding particles or agglomerates have been assumed to explain these small values of De [4, 6, 7]. Here we report the direct observation of dipolar interaction between coagulating agglomerates of hydrogenated silicon. We found the occurring of a mechanism of dipole agglomerate formation by primary particles that differ for their chemical nature. We give the explanation of this phenomenon basing on the electronic strucntre of the particle material. (literal)

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