Electrorheological properties of pumice/silicone oil suspension |
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Authors: | Mustafa Yavuz Mehmet Çabuk |
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Affiliation: | (1) Department of Chemistry, Faculty of Arts and Science, Süleyman Demirel University, 32260 Isparta, Turkey |
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Abstract: | Pumice particles-based electrorheological (ER) suspensions were prepared in silicone oil and its ER behavior was investigated
as a function of shear rate, electric field strength, concentration and temperature. Sedimentation stabilities of suspensions
were determined. ER activity of all the suspensions was observed to increase with increasing electric field strength, concentration
and decreasing shear rate. Yield stress of pumice suspensions increased linearly with increasing applied electric field strength
and with concentrations of the particles. The pumice suspensions show a typical shear thinning non-Newtonian viscoelastic
behavior, in which viscosity of suspension decreased sharply with increasing shear rate. Effect of high temperature onto ER
activity of pumice/silicone oil system was also investigated. |
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Keywords: | |
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