Topic
Electrorheological fluid
About: Electrorheological fluid is a research topic. Over the lifetime, 2302 publications have been published within this topic receiving 44902 citations.
Papers published on a yearly basis
Papers
Book•
26 Nov 1998
TL;DR: In this article, the authors present a comprehensive overview of the properties and properties of complex fluids and their properties in terms of physics, chemistry, physics theory, and physics of complex fluid properties.
Abstract: Part I: Fundamentals 1. Introduction to Complex Fluids 1.3 Rheological Measurements and Properties 1.4 Kinematics and Stress 1.5 Flow, Slip, and Yield 1.6 Structural Probes of Complex Fluids 1.7 Computational Methods 1.8 The Stress Tensor 1.9 Summary 2. Basic Forces 2.1 Intoduction 2.3 Van der Waals Interactions 2.4 Electrostatic Interactions 2.5 Hydrogen-Bonding, Hydrophobic, and Other Interactions 2.6 Summary Part II: Polymers, Glassy Liquids, and Polymer Gels 3. Polymers 3.1 Introduction 3.2 Equilibrium Properties 3.3 Intrinsic Viscosity and Overlap Concentration 3.4 Elementary Molecular Theories 3.5 Linear Viscoelasticity and Time-Temperature Superposition 3.6 The Rheology of Dilute Polymer Solutions 3.7 The Rheology of Entangled Polymers 3.8 Summary 4. Glassy Liquids 4.1 Introduction 4.2 Phenomenology of the Glass Transition 4.3 Free-Volume Theories 4.4 Entropy Theories 4.5 Nonlinear Relaxation and Aging 4.6 Mode-Coupling Theory and Colloidal Hard-Sphere Glasses 4.7 Analog Models 4.8 Rheology of Glassy Liquids 4.9 Summary 5. Polymer Gels 5.1 Introduction 5.2 Gelation Theoies 5.3 Rheology of Chemical Gels and Near-Gels 5.4 Rheology of Physical Gels 5.5 Summary Part III: Suspensions 6. Particulate Suspensions 6.1 Introduction 6.2 Hard, and Slightly Deformable Spheres 6.3 Nonspherical Particles 6.4 Electrically Charged Particles 6.5 Particles in Viscoelastic Liquids: "Filled Melts" 6.6 Summary 7. Particulate Gels 7.1 Introduction 7.2 Particle Interactions in Suspensions 7.3 Rheology of Particulate Gels 7.4 Summary 8. Electro- and Magneto-Responsive Suspensions 8.1 Introduction 8.2 Electrorheological Fluids 8.3 Magnetorheological Fluids 8.4 Ferrofluids 8.5 Summary 9. Foams, Emulsions, and Blends 9.1 Introduction 9.2 Emulsion Preparation 9.3 Rheology of Emulsions and Immiscible Blends 9.4 Structure and Coarsening of Foams 9.5 Rheology of Foams 9.6 Summary Part IV: Liquid Crystals and Self-Assembling Fluids 10. Liquid Crystals 10.1 Introduction 10.2 Nematics 10.3 Cholesterics: Chiral Nemantics 10.4 Smectics 10.5 Summary 11. Liquid Crystalline Polymers 11.1 Introduction 11.2 Molecular Characteristics of Liquid Crystalline Polymers 11.3 Flow Properties of Nematic LCP's 11.4 Molecular Dynamics of Polymeric Nematics 11.5 Molecular Theory for the Rheology of Polymeric Nematics 11.6 Summary 12. Surfactant Solutions 12.1 Introduction 12.2 Methods of Predicting Microstructures 12.3 Disordered Micellar Solutions 12.4 Surfactant Liquid Crystals 12.5 Summary 13. Block Copolymers 13.1 Introduction 13.2 Thermodynamics of Block Copolymers 13.3 Rheology and Shear-Aligning of Block Copolymers 13.4 Summary Appendix: Momentum-Balance Equations in the Absence of Inertia
4,099 citations
1 Jan 2000
TL;DR: In this paper, a mathematical framework for modeling electrorheological fluids with shear-dependent viscosities is presented for steady flows and unsteady flows, respectively, and stable flows.
Abstract: Modeling of electrorheological fluids.- Mathematical framework.- Electrorheological fluids with shear dependent viscosities: Steady flows.- Electrorheological fluids with shear dependent viscosities: Unsteady flows.
2,169 citations
TL;DR: In this article, the authors describe some of the phenomena found to have their origin in electrically induced fibration of small particles in fluid liquid suspension, including the induced shear resistances found in layers of the fluid when bounded by potentialized electrode surfaces.
Abstract: This paper describes some of the phenomena found to have their origin in electrically induced fibration of small particles in fluid liquid suspension. Particular attention is given to induced shear resistances found in layers of the fluid (0.01 to 0.15 cm) when bounded by potentialized electrode surfaces. Ingredients and manner of compounding concentrated fluids capable of reversible shear resistance up to several hundred grams per cm2 are described. Dynamic induced shear resistance or the corresponding induced bulk viscosity are shown to be a parabolic function of field strength wherein parameters dependent on surface conditions of the particles are involved. Various properties of these fluids are discussed with regard to the mechanism of induced fibration, its application in slip clutches and other hydraulic devices, and some of the factors for best results. Consideration is given to the analogous magnetically induced fibration of ferromagnetic particles in fluid suspension. It is found that the observe...
1,269 citations
TL;DR: This work fabricated electrorheological suspensions of coated nanoparticles that show electrically controllable liquid–solid transitions that can reach a yield strength of 130 kPa, breaking the theoretical upper bound on conventional ER static yield stress.
Abstract: Electrorheology (ER) denotes the control of a material's flow properties (rheology) through an electric field1,2,3,4,5,6,7,8,9,10. We have fabricated electrorheological suspensions of coated nanoparticles that show electrically controllable liquid–solid transitions. The solid state can reach a yield strength of 130 kPa, breaking the theoretical upper bound on conventional ER static yield stress that is derived on the general assumption that the dielectric and conductive responses of the component materials are linear. In this giant electrorheological (GER) effect, the static yield stress displays near-linear dependence on the electric field, in contrast to the quadratic variation usually observed11,12,13,14,15,16. Our GER suspensions show low current density over a wide temperature range of 10–120 °C, with a reversible response time of <10 ms. Finite-element simulations, based on the model of saturation surface polarization in the contact regions of neighbouring particles, yield predictions in excellent agreement with experiment.
618 citations
TL;DR: In this paper, the authors discuss the phenomenon of electrorheology in relation to possible mechanisms involving polarization of dispersions in flow and make comparisons between electorheological activity and dielectric properties.
Abstract: The phenomenon of electrorheology is discussed in relation to possible mechanisms involving polarization of dispersions in flow. Data relating such polarization during flow are presented, and comparisons between electrorheological activity and dielectric properties are made. The importance of the rate of polarization as well as its magnitude is stressed. How such considerations led to electrorheological fluids based on dispersed semiconducting polymers as an alternative to traditional water containing polyelectrolytes is discussed, and some of the dielectric and electrorheological properties of these new electrorheological fluids are described.
395 citations
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Performance Metrics
| Year | Papers |
|---|---|
| 2025 | 21 |
| 2024 | 28 |
| 2023 | 24 |
| 2022 | 58 |
| 2021 | 30 |
| 2020 | 48 |