Industry/University Cooperative Research Activity: A Study of the Electrorheological Effect and Its Application to Devices

含有亲水微粒的介电流体在电场作用下，其流变性能迅速发生大的可逆变化。为更好地了解电流变效应，拟开展以下研究活动：(a)对在电场作用下形成的纤维状结构的性质进行详细的光学显微镜观察，以及在剪切过程中纤维状结构的破裂和重组；(b)对电流变流体的流变学和电学特性进行同步测量；(c)对物理、化学、采用先进的分析仪器对表面悬浮颗粒的几何性质进行分析，并(d)对分析结果进行分析，以确定其运行机制。

Dielectric fluids containing fine hydrophillic particles can rapidly undergo large reversible changes in their rheological properties upon application of an electric field. To better understand the electrorheological (ER) effect, it is proposed to carry out the following research activities: (a) detailed optical microscopy observations on the nature of the fibrated structure which develops upon application of an electric field and its rupture and reformation during shear, (b) concurrent measurements of the rheological and electrical properties of the ER fluid, (c) selected measurements of he physical, chemical, and geometric nature of the surface of the suspended particles employing advanced analytical instruments, and (d) an analysis of the results to identify the operative mechanisms.