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Commercial applications of ferrofluids
Abstract Ferrofluids have been in the commercial arena for over two decades. In this paper, the most advanced, successful commercial applications of ferrofluids are discussed. These applicationsExpand
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NONMECHANICAL TORQUE‐DRIVEN FLOW OF A FERROMAGNETIC FLUID BY AN ELECTROMAGNETIC FIELD
Flows of ferromagnetic fluids (colloidal suspensions) are obtained by coupling to the suspended single‐domain particles with a rotating magnetic field. It is shown that very high rotation rates areExpand
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Theoretical aspects of demagnetization tensors
A magnetometric demagnetization tensor is defined for uniformly-magnetized samples of arbitrary geometry. It is shown that this is a real symmetric tensor with non-negative diagonal elements and unitExpand
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A review of damping applications of ferrofluids
Applications of magnetic liquid technology to damping phenomenon are reviewed. Products utilizing ferrofluids, such as a rotary viscous inertia damper, linear damper, damper/seal assembly, andExpand
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Dynamic Sealing with Magnetic Fluids
If a lip seal could use a liquid lip, the resulting perfect conformity to the rotating and stationary surfaces would negate the effects of surface finish and mechanical run-out. Magnetic fluids,Expand
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Thermal conductivity measurements on ferrofluids
The thermal conductivity of a number of ferrofluids consisting of colloidally dispersed Fe3O4 particles in diester, hydrocarbon, water and fluorcarbon carriers have been measured at 38°C. TheExpand
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Magnetostatic Measurement of Spacecraft Magnetic Dipole Moment
This paper describes a technique for determining the magnetic dipole moment of a spacecraft by sampling its magnetic field at constant radius. Integral equations relating magnetic field samples toExpand
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Non-Wearing Ferrofluidic Seals
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Computer Simulation of the Magnetic Dipole Interaction Problem
Interacting systems of a large number of hysteretic bistable magnetic particles have been studied by direct calculation using digital computers. In this paper, we discuss calculations made onExpand
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