Results 91 to 100 of about 159 (141)
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2007
"Smart" materials can adaptively change or respond to an external stimulus producing a useful effect. Mechanical stresses, temperature, electric or magnetic fields, photon radiation or chemicals are typical examples of stimuli. A useful effect usually means a dramatic change of either one physical property (mechanical, electrical, appearance), the ...
Hutter, Kolumban +2 more
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"Smart" materials can adaptively change or respond to an external stimulus producing a useful effect. Mechanical stresses, temperature, electric or magnetic fields, photon radiation or chemicals are typical examples of stimuli. A useful effect usually means a dramatic change of either one physical property (mechanical, electrical, appearance), the ...
Hutter, Kolumban +2 more
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Electrorheological effects of polyaniline‐type electrorheological fluids
Journal of Applied Polymer Science, 2002AbstractThree kinds of particles—polyaniline (PANI), poly(o‐toludine) (POT), and brominated polyaniline (Br‐PANI)—were synthesized. With chlorinated paraffin as a disperse oil, their electrorheological (ER) effects were determined so that the influence of the phenyl substitute group on the ER effects could be considered.
Liucheng Zhang, Kai Su, Xiucuo Li
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Science, 1992
Suspensions of polarizable particles in nonpolarizable solvents form fibrillated structures in strong electric fields. The resulting increase in viscosity of these "electrorheological" fluids can couple electrical to hydraulic components in a servomechanism. The physical properties of these fluids are unusual owing to the long-range, anisotropic nature
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Suspensions of polarizable particles in nonpolarizable solvents form fibrillated structures in strong electric fields. The resulting increase in viscosity of these "electrorheological" fluids can couple electrical to hydraulic components in a servomechanism. The physical properties of these fluids are unusual owing to the long-range, anisotropic nature
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Rheology of electrorheological fluids
Physical Review Letters, 1992We present experimental and theoretical results on the shear thinning of electrorheological fluids. Rheological measurements on a model fluid consisting of monodisperse silica spheres immersed in a dielectric liquid show a power-law dependence \ensuremath{\mu}\ensuremath{\propto}\ensuremath{\gamma}${\mathrm{\ifmmode \dot{}\else \.{}\fi{}}}^{\mathrm ...
, Halsey, , Martin, , Adolf
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Electrorheological Toners for Electrophotography
Journal of Colloid and Interface Science, 2002The electrorheological (ER) behavior of pigment suspensions dispersed in a nonaqueous solvent was examined for their application as liquid toners for electrophotography. In electric fields, particles can align into chains along the field vector by dielectric polarization forces and the suspensions undergo a rapid transition from Newtonian fluids to ...
Yasufumi, Otsubo, Yasuharu, Suda
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First Observation of Electrorheological Plasmas
Physical Review Letters, 2008We report the experimental discovery of "electrorheological (ER) complex plasmas," where the control of the interparticle interaction by an externally applied electric field is due to distortion of the Debye spheres that surround microparticles (dust) in a plasma.
Ivlev, A. +12 more
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Electrorheological suspensions
Advances in Colloid and Interface Science, 2002The objective of this article is to give a review of electrorheological (ER) suspensions whose rheological properties can abruptly change under an external electric field. Attention is given to the physical backgrounds behind ER phenomena reported recently.
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A NOTE TO SECONDARY ELECTRORHEOLOGICAL PATTERNS
Electro-Rheological Fluids and Magneto-Rheological Suspensions, 2011The development and character of ring structures created in the suspension of glass beads in an electric field flow were investigated. Two suspension media significantly differing in viscosity were used. The influence of various sequences of electric field strength and shear application, as well as shearing intensity with respect to the development of ...
Stěnička, Martin +4 more
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An Electrorheological Tactile Display
Presence: Teleoperators and Virtual Environments, 1992In addition to force and torque reflection, teleoperation also requires a degree of tactile feedback. This is particularly important where knowledge of a surface topology is desired, such as might be encountered by an underwater or space exploration vehicle.
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Russian Journal of General Chemistry, 2010
Advances in one of the most promising fields of the chemistry of smart materials, specifically, electrorheological fluids are considered. The electrorheological effect and the structure and properties of electrorheological fluids are described. Modern views on the nature of the electrorheological effect are considered.
A. V. Agafonov, A. G. Zakharov
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Advances in one of the most promising fields of the chemistry of smart materials, specifically, electrorheological fluids are considered. The electrorheological effect and the structure and properties of electrorheological fluids are described. Modern views on the nature of the electrorheological effect are considered.
A. V. Agafonov, A. G. Zakharov
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