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Two-dimensional self-assembly of similarly charged granular particles / S. C. Wu in Industrial & engineering chemistry research, Vol. 47 n°15 (Août 2008) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 47 n°15 (Août 2008) . - p. 5005–5015 Titre : Two-dimensional self-assembly of similarly charged granular particles Type de document : texte imprimé Auteurs : S. C. Wu, Auteur ; D. T. Wasan, Auteur ; A. D. Nikolov, Auteur Année de publication : 2008 Article en page(s) : p. 5005–5015 Note générale : Bibliogr. p. 5014-5015 Langues : Anglais (eng) Mots-clés : Particle  surface  coverage  --  granular  assemblies  Monte  Carlo  simulation Résumé : We present results of our experimental study on the effect of particle surface coverage (density) on the evolution of packing structure in charged granular assemblies in a two-dimensional (2D) geometry. Steel particles were charged by rubbing them with the bottom surface of a polystyrene box. We conducted a Monte Carlo simulation study via the interparticle interaction of the dipole repulsion. The resulting radial distribution functions, bond orientation correlation functions, and 2D pressure isotherm approximate the experimental data well. The particle potential of the mean force changes from repulsion only at a low particle coverage fraction of 0.01 to oscillation between repulsion and attraction at higher coverage fractions due to the collective particle interactions. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie0708125 [article] Two-dimensional self-assembly of similarly charged granular particles [texte imprimé] / S. C. Wu, Auteur ; D. T. Wasan, Auteur ; A. D. Nikolov, Auteur . - 2008 . - p. 5005–5015. Bibliogr. p. 5014-5015 Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 n°15 (Août 2008) . - p. 5005–5015 Mots-clés : Particle  surface  coverage  --  granular  assemblies  Monte  Carlo  simulation Résumé : We present results of our experimental study on the effect of particle surface coverage (density) on the evolution of packing structure in charged granular assemblies in a two-dimensional (2D) geometry. Steel particles were charged by rubbing them with the bottom surface of a polystyrene box. We conducted a Monte Carlo simulation study via the interparticle interaction of the dipole repulsion. The resulting radial distribution functions, bond orientation correlation functions, and 2D pressure isotherm approximate the experimental data well. The particle potential of the mean force changes from repulsion only at a low particle coverage fraction of 0.01 to oscillation between repulsion and attraction at higher coverage fractions due to the collective particle interactions. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie0708125