Magnetorheological Fluids Based on Ionic Liquids

Guerrero-Sanchez, Carlos; Lara-Ceniceros, Tania; Jimenez-Regalado, Enrique; Rasa, Mircea; Schubert, Ulrich S.

Abstract:

Magnetorheological fluids (MRFs) are dispersions of micrometer- sized (from 1 to 20 lm) magnetic particles in a carrier fluid, whose rheological behavior can be controlled by means of a magnetic field. Thus, MRFs can change from a liquid to a solidlike state and vice versa almost instantaneously. MRFs have been used in various technological applications since their first preparation. Applications of MRFs include semi-active shock absorbers in the automotive industry, dampers for seismic damage controls in civil engineering, seals, valves, robotics, and microelectronic devices. In medicine, MRFs have been proposed for drug delivery and cancer therapeutic methods.[11–14] Current fundamental research on MRFs focuses mainly on the settling of dispersed magnetic particles (and redispersion phenomena), which may restrict their use in specific applications.

Year:

2007

Type of Publication:

Article

Journal:

Advanced Materials

Volume:

19

Pages:

1740 - 1747