Abstract
Purpose – The purpose of this paper is to present experimental research on the behaviour of a new electrorheological fluid (ETSERF).Design/methodology/approach – The ETSERF is a suspension based on diatomite powders dispersed in silicon oil with a surfactant. A design of experiments is conducted to investigate the effects of electric field strength, particle concentration, surfactant percentage, particle size and shear rate on the efficiency of ETSERFs. The influence of the interactions on shear stresses is analyzed by varying all the combinations of the independent variables. The dielectric properties of the ETSERF are investigated in order to explain the interactions between these independent variables. Furthermore, a quantitative relationship between the dynamic shear stresses and the independent variables is developed.Findings – The relationship provides a very useful explanation for the contributions of each independent variable to the viscosity and yield stress.Originality/value – A new empirical mo...
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