Structure and dynamics of a dense dipolar system in an electric field and their relevance to electrorheological fluids

1991 ◽  
Vol 64 (5-6) ◽  
pp. 1093-1102 ◽  
Author(s):  
N. K. Jaggi
Keyword(s):  
Electric Field ◽  
Electrorheological Fluids ◽  
Structure And Dynamics ◽  
Dipolar System

scholarly journals Structure and dynamics of CaO films: A computational study of an effect of external static electric field

2017 ◽  
Vol 95 (16) ◽  
Author(s):  
Mikhail S. Kuklin ◽  
Andrey S. Bazhenov ◽  
Karoliina Honkala ◽  
Sergio Tosoni ◽  
Gianfranco Pacchioni ◽  
...  
Keyword(s):  
Electric Field ◽  
Computational Study ◽  
Static Electric Field ◽  
Structure And Dynamics

Polyzwitterionic aqueous solutions – a new class of electrorheological fluids

e-Polymers ◽  
2002 ◽  
Vol 2 (1) ◽  
Author(s):  
George S. Georgiev ◽  
Anna A. Tzoneva ◽  
Velin A. Spassov
Keyword(s):  
Field Strength ◽  
Electric Field ◽  
Aqueous Solutions ◽  
Structural Organization ◽  
Cluster Formation ◽  
Electrorheological Fluids ◽  
Core Shell ◽  
New Class ◽  
Polyelectrolyte Solutions ◽  
Direction Opposite

AbstractIt has been established that the electroviscosity effect of polyzwitterionic (PZI) aqueous solutions is more considerable than and acts in a direction opposite to that of aqueous polyelectrolyte solutions. Temperature and electric field strength influence the electroviscosity of PZI aqueous solutions in parallel, though the reasons for these effects are quite different. The unusual electroviscosity behaviour of PZI solutions is explained by a ‘core-shell’ model for the structural organization of PZI macromolecules, suggesting that cluster formation is due to intensive dipoledipole interactions between monomer units of the same or of different macromolecules.

scholarly journals Microconvection heat transfer in electrorheological fluids in rotating electric field

2013 ◽  
Vol 412 ◽  
pp. 012008
Author(s):  
A A Mokeev ◽  
S A Gubarev ◽  
E V Korobko ◽  
N A Bedik
Keyword(s):  
Heat Transfer ◽  
Electric Field ◽  
Electrorheological Fluids

Water-Activated Bacterial Cellulose-Based Electrorheological Fluids and Electromechanical Response of Artificial Muscle Based on Electrorheological Fluids and Siloxane Gel

2009 ◽  
Vol 87-88 ◽  
pp. 143-148
Author(s):  
Nai Xu ◽  
De Min Jia
Keyword(s):  
Field Strength ◽  
Electric Field ◽  
Electric Field Strength ◽  
Water Content ◽  
Bacterial Cellulose ◽  
Yield Stress ◽  
Particle Concentration ◽  
Electrorheological Fluids ◽  
Water Yield ◽  
Composite Gel

Electrorheological (ER) characteristics of ER fluids (ERF) containing bacterial cellulose (BC) particles in silicone oil was investigated as a function of particle water content, DC electric field strength and particle concentration. It was found that the existence of water in BC particles strongly influenced the performance of water-activated ERF based on BC particles. Around 8.8 wt% water, yield stress reached its maximum valve of 1118 Pa after which it decreased with increasing water content. At the same water content, yield stress increased linearly with increasing in either electric field strength or particle concentration. The ERF based on BC particles was introduced into the poly (dimethylsiloxane) (PDMS) gels to prepare electric field sensitive composite gel. Electric fields were applied to these composite gels using flexible electrodes. Compressions of these gels with varying PDMS/ERF ratios were confirmed by the electrode displacement. It was found that 50/50 PDMS/ERF gel exhibited the maximum displacement of 102um at 2 kV/mm electric field.

Frequency dependence of electrorheological fluids in an ac electric field

1995 ◽  
Vol 52 (6) ◽  
pp. 6329-6332 ◽  
Author(s):  
Kunquan Lu ◽  
Weijia Wen ◽  
Chenxi Li ◽  
Sishen Xie
Keyword(s):  
Electric Field ◽  
Frequency Dependence ◽  
Electrorheological Fluids ◽  
Ac Electric Field

THE ELECTRORHEOLOGICAL FLUIDS WITH HIGH SHEAR STRESS

2005 ◽  
Vol 19 (07n09) ◽  
pp. 1065-1070 ◽  
Author(s):  
KUNQUAN LU ◽  
RONG SHEN ◽  
XUEZHAO WANG ◽  
GANG SUN ◽  
WEIJIA WEN
Keyword(s):  
Shear Stress ◽  
Electric Field ◽  
Yield Stress ◽  
High Performance ◽  
Electrorheological Fluids ◽  
Stress Effect ◽  
High Shear ◽  
High Shear Stress ◽  
Effective Factors ◽  
Er Fluids

A series of high performance ER fluids newly manufactured in our laboratory are presented. The yield stress of those ER fluids can reach several tens of kPa, 100 kPa and even 200 kPa, respectively. For understanding the high shear stress effect a model is proposed base on the electric field induced molecular bounding effect. The main effective factors in fabricating the high performance ER are discussed.

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