Results 41 to 50 of about 754 (161)

Recent progress in the growth and applications of graphene as a smart material: A review

open access: yesFrontiers in Materials, 2015
Innovative breakthroughs in fundamental research and industrial applications of graphene material have made its mass and low-cost production a necessary step toward its real world applications.
Brahim eAissa   +4 more
doaj   +1 more source

Electrorheology of Suspensions of Variously Protonated Polyaniline Particles under Steady and Oscillatory Shear

open access: yesApplied Rheology, 2010
Electrorheological (ER) and dielectric properties of silicone-oil suspensions of polyaniline (PANI) particles protonated with phosphoric and tetrafluoroboric acids to various doping level have been investigated.
Stenicka Martin   +5 more
doaj   +1 more source

Influence of the Electric Field on the Electrorheological Behaviour of Crystalline Cellulose Suspensions in Silicone Oils

open access: yesApplied Rheology, 1999
This work deals with electrorheological (ER) behaviour of moist crystalline cellulose dispersed in silicone oils of different viscosities (0.1, 0.35 and 1.0 Pa.s) in DC and 50 Hz AC electric fields.
Pavlínek V.   +3 more
doaj   +1 more source

Intercalation-enhanced electric polarization and chain formation of nano-layered particles

open access: yes, 2005
Microscopy observations show that suspensions of synthetic and natural nano-layered smectite clay particles submitted to a strong external electric field undergo a fast and extended structuring.
Brindley G. W.   +15 more
core   +1 more source

Impact of particle charge and electrorheology-effects on dust-acoustic waves in low pressure complex plasma under microgravity

open access: yesNew Journal of Physics
This study investigates the influence of particle charge and electrorheological (ER) effects on microparticle dynamics and dust-acoustic wave propagation in low-pressure complex plasmas under microgravity conditions. Experiments were conducted using PK-4
L Wimmer   +9 more
doaj   +1 more source

Electrical controlled rheology of a suspension of weakly conducting particles in dielectric liquid [PDF]

open access: yes, 2006
The properties of suspensions of fine particles in dielectric liquid (electrorheological fluids) subjected to an electric field lead to a drastic change of the apparent viscosity of the fluid. For high applied fields (~ 3-5 kV/mm) the suspension congeals
Ayela, F.   +3 more
core   +2 more sources

Nonlinear ac response of anisotropic composites

open access: yes, 2001
When a suspension consisting of dielectric particles having nonlinear characteristics is subjected to a sinusoidal (ac) field, the electrical response will in general consist of ac fields at frequencies of the higher-order harmonics.
C. K. Lo   +22 more
core   +2 more sources

Mechanisms of Magneto- and Electro-Rheology: Recent Progress and Unresolved Issues

open access: yesApplied Rheology, 2001
An electrorheological fluid (ERF) (magnetorheological fluid - MRF) is a particulate suspension which shows a dramatic increase in flow resistance upon application of an external electric (magnetic) field. In both systems, the fundamental physical process
See Howard
doaj   +1 more source

Energetic Instability Unjams Sand and Suspension

open access: yes, 2004
Jamming is a phenomenon occurring in systems as diverse as traffic, colloidal suspensions and granular materials. A theory on the reversible elastic deformation of jammed states is presented.
A. Schofield   +9 more
core   +1 more source

Tactile graphical display for the visually impaired information technology applications [PDF]

open access: yes, 2013
This paper presents an interactive tactile graphical display, for the visually impaired information technology access applications. The display consists of a matrix of dots. Each dot is an electro rheological micro actuator.
Fekkai, S, Shafik, M
core  

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