Permittivity of electrorheological fluids under steady and oscillatory shear

Langmuir ◽  
1995 ◽  
Vol 11 (1) ◽  
pp. 313-317 ◽  
Author(s):  
Douglas Adolf ◽  
Terry Garino ◽  
Brad Hance
Keyword(s):  
Oscillatory Shear ◽  
Electrorheological Fluids

scholarly journals Resonant alignment of microswimmer trajectories in oscillatory shear flows

2016 ◽  
Vol 1 (5) ◽  
Author(s):  
Alexander Hope ◽  
Ottavio A. Croze ◽  
Wilson C. K. Poon ◽  
Martin A. Bees ◽  
Mark D. Haw
Keyword(s):  
Shear Flows ◽  
Oscillatory Shear

Coating of Polyaniline with an Insulating Polymer to Improve the Power Efficiency of Electrorheological Fluids

1999 ◽  
Vol 13 (14n16) ◽  
pp. 1931-1939 ◽  
Author(s):  
J. Akhavan ◽  
K. Slack ◽  
V. Wise ◽  
H. Block
Keyword(s):  
Power Efficiency ◽  
Electrorheological Fluids ◽  
Emeraldine Base ◽  
Heavy Duty ◽  
Base Form ◽  
Static Yield ◽  
High Fields ◽  
Er Fluids ◽  
Er Fluid ◽  
A Current

Currents drawn under high fields often present practical limitations to electrorheological (ER) fluids usefulness. For heavy-duty applications where large torques have to be transmitted, the power consumption of a ER fluid can be considerable, and for such uses a current density of ~100μ A cm -2 is often taken as a practical upper limit. This investigation was conducted into designing a fluid which has little extraneous conductance and therefore would demand less current. Selected semi-conducting polymers provide effective substrates for ER fluids. Such polymers are soft insoluble powdery materials with densities similar to dispersing agents used in ER formulations. Polyaniline is a semi-conducting polymer and can be used as an effective ER substrate in its emeraldine base form. In order to provide an effective ER fluid which requires less current polyaniline was coated with an insulating polymer. The conditions for coating was established for lauryl and methyl methacrylate. Results from static yield measurements indicate that ER fluids containing coated polyaniline required less current than uncoated polyaniline i.e. 0.5μ A cm -2. The generic type of coating was also found to be important.

Steady and dynamic oscillatory shear rheological properties of ketchup–processed cheese mixtures: Effect of temperature and concentration

2011 ◽  
Vol 103 (2) ◽  
pp. 197-210 ◽  
Author(s):  
Mustafa Tahsin Yılmaz ◽  
Safa Karaman ◽  
Hasan Cankurt ◽  
Ahmed Kayacier ◽  
Osman Sagdic
Keyword(s):  
Rheological Properties ◽  
Oscillatory Shear ◽  
Effect Of Temperature ◽  
Processed Cheese
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