Two Dimensional Monte Carlo Simulations of Aggregation Phenomena in Ferromagnetic Colloidal Dispersions Composed of Rod-Like Hematite Particles

Two Dimensional Monte Carlo Simulations of Aggregation Phenomena in Ferromagnetic Colloidal Dispersions Composed of Rod-Like Hematite Particles
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棒状赤铁矿颗粒铁磁胶体分散体聚集现象的二维蒙特卡罗模拟

DOI:
10.1115/imece2007-41764
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发表时间:
2007
期刊:
International Journal of Emerging Multidisciplinary Fluid Sciences
影响因子:
--
通讯作者:
A. Satoh
A. Satoh
中科院分区:
--
文献类型:
--
作者:
Y. Katayama;R. Hayasaka;A. Satoh

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We have investigated aggregation phenomena of ferromagnetic colloidal dispersions composed of rod-like hematite particles which have a magnetic moment normal to the particle axis, by means of the cluster-moving Monte Carlo method. In concrete, we have treated a two-dimensional dispersion in order to clarify the influences of the particle aspect ratio, magnetic interactions between particles and the magnetic field strength on particle aggregations. The main results obtained here are summarized as follows. In the absence of an applied magnetic field, rod-like particles tend to aggregate to form raft-like clusters along the magnetic moment direction as magnetic particle-particle interactions increase. However, shorter raft-like clusters are formed as the area fraction decreases. If a strong magnetic field is applied, the raft-like clusters tend to incline along the magnetic field direction, and this feature of the cluster formation is not significantly dependent on the particle length.
DOI: --
发表时间: 2006
期刊: Journal of Nanoscience and Nanotechnology 6
影响因子: --
作者:
K.Nakano;H.Matsui;K.Matsuda;M.Mizuhira;K.Tsuji;Seiichi Furumi
通讯作者: Seiichi Furumi
DOI: 10.1016/j.jcis.2005.04.077
发表时间: 2005-11-01
影响因子: 9.9
作者:
Mine, E;Hirose, M;Konno, M
通讯作者: Konno, M
DOI: 10.1002/adma.200501849
发表时间: 2006-03-17
期刊: ADVANCED MATERIALS
影响因子: 29.4
作者:
Furumi, S;Sakka, Y
通讯作者: Sakka, Y