Field-induced forces in colloidal particle chains.
Field-induced forces in colloidal particle chains.
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DOI：
10.1103/physreve.51.2099
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发表时间：
1995-03
期刊：
影响因子：
--
通讯作者：
Zhang;Widom
中科院分区：
文献类型：
--
作者：
Zhang;Widom
当外加电场作用于溶解在溶液中的颗粒时，会产生电流变和磁流变效应。当粒子之间的偶极相互作用能与热能相当并且粒子体积分数低时，粒子以链排列。本文考虑的偶极和更高的力矩力在这样的链。我们检查的力量，由于超出最近的邻居链内的相互作用，相互极化的粒子，和扭曲的粒子形状的应用领域。链的热膨胀进入弱场极限。
Electrorheological and magnetorheological effects occur when applied fields polarize particles dissolved in solution. When dipole interaction energies between particles are comparable to thermal energies and particle volume fraction is low, particles align in chains. This paper considers the dipole and higher moment forces within such a chain. We examine forces due to interactions beyond nearest neighbors within a chain, mutual polarization of the particles, and distortion of particle shapes by the applied field. Thermal expansion of the chain enters in the limit of weak applied field.