Effect of Urea Content on Properties and Microstructure of Ni/TiO2 Group Particles ER Fluid
This paper emphasis have researched the effect of Ni/TiO2 group particles modifier with Urea by properties and microstructure，it has showed that ER activity of the particles were closely associated with urea content. When the mass ratio of urea/Ti is 30%, The microstructure observation of the ER fluids under DC electric field showed that the particles aggregated to form thicker and dense column structure when the mass ratio of Urea/Ti is 30%, while the column structure were broken when excessive urea (>30%) was added. A thin and loose column structure was formed in non-urea added ER fluid.
B. Xu and H.Y. Li
S. K. Tan et al., "Effect of Urea Content on Properties and Microstructure of Ni/TiO2 Group Particles ER Fluid", Advanced Materials Research, Vol. 496, pp. 25-29, 2012