Results 31 to 40 of about 3,774 (207)

Sedimentation upon different carrier liquid in giant electrorheological fluid and its application

open access: yesFrontiers in Materials, 2014
When giant electrorheological (GER) fluid is settled after some time, particles can precipitate out of the oil in a multistep process that involves the formation of larger particles, the aggregation of colloids, and eventual sedimentation.
Yaying eHong, Weijia eWen
doaj   +1 more source

Review of the Electrorheological (Er) Effect of Polyurethane-based Er Fluids

open access: yesApplied Rheology, 2008
Electrorheological fluids (ERF) change viscosity when an electric field is applied. A special type of ERF consists of polyurethane particles which are doped with Li+ and /or Zn2+ cations and suspended in silicone oil.
Schneider S., Eibl S.
doaj   +1 more source

The electrorheology of suspensions consisting of Na-Fluorohectorite synthetic clay particles in silicon oil

open access: yes, 2010
Under application of an electric field greater than a triggering electric field $E_c \sim 0.4$ kV/mm, suspensions obtained by dispersing particles of the synthetic clay fluoro-hectorite in a silicon oil, aggregate into chain- and/or column-like ...
B. Schjelderupsen   +7 more
core   +3 more sources

Reynolds Number Effects in the Flow of a Vočadlo Electrorheological Fluid in a Curved Gap

open access: yesInternational Journal of Applied Mechanics and Engineering, 2017
Many electrorheological fluids (ERFs) as fluids with micro-structure demonstrate a non-Newtonian behaviour. Rheometric measurements indicate that some flows of these fluids may by modelled as the flows of a Vočadlo ER fluid.
A. Walicka, J. Falicki
doaj   +1 more source

Ground state of a polydisperse electrorheological solid: Beyond the dipole approximation

open access: yes, 2002
The ground state of an electrorheological (ER) fluid has been studied based on our recently proposed dipole-induced dipole (DID) model. We obtained an analytic expression of the interaction between chains of particles which are of the same or different ...
A. Lukkarinen   +23 more
core   +2 more sources

Scalable High‐Force Zipping Electrostatic Actuators

open access: yesAdvanced Intelligent Systems, EarlyView.
An electrostatic actuator architecture is presented that combines high energy density with forces and strokes suited for wearable soft robotics. By folding patterned thin films into a scalable honeycomb of zipping units, performance becomes tunable through series–parallel design, achieving over 40 N and 28 J/kg.
Fabio Caruso   +2 more
wiley   +1 more source

New nonlinear dielectric materials: Linear electrorheological fluids under the influence of electrostriction

open access: yes, 2004
The usual approach to the development of new nonlinear dielectric materials focuses on the search for materials in which the components possess an inherently large nonlinear dielectric response.
A. Kawai   +5 more
core   +3 more sources

Plasmakristall‐4 Experiment: 10 Years of Operation in Orbit

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT Plasmakristall‐4 (PK‐4) is a microgravity complex plasma laboratory operated for 10 years on board the International Space Station. Its main purpose is the particle‐resolved investigation of generic condensed matter phenomena using strongly coupled suspensions of microparticles immersed in low‐pressure gas‐discharge plasmas.
M. Pustylnik   +3 more
wiley   +1 more source

Weak Solutions for a Class of Nonlocal Singular Problems Over the Nehari Manifold

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT In this paper, we consider a nonlocal model of dilatant non‐Newtonian fluid with a Dirichlet boundary condition. By using the Nehari manifold and fibering map methods, we obtain the existence of at least two weak solutions, with sign information.
Zhenfeng Zhang   +2 more
wiley   +1 more source

Possible Mechanisms of String Formation in Complex Plasmas at Elevated Pressures

open access: yesMolecules, 2021
Possible mechanisms of particle attraction providing formation of the field aligned microparticle strings in complex plasmas at elevated gas pressures are theoretically investigated in the light of the Plasmakristall-4 (PK-4) experiment on board the ...
Victoria Yaroshenko, Mikhail Pustylnik
doaj   +1 more source

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