Magnetorheological effect

Jacob Rabinow, a researcher at the National Bureau of Standards (since renamed as the National Institute of Standards and Technology), discovers the magnetorheological effect. 

Fig. 5 Magnetorheological effect of carbonyl iron particles in uniform magnetic field, a Magnetite suspension in the absence of external field, b The same suspension in the presence of 100 mT uniform magnetic field. The direction of forming chains is parallel to the field direction, as shown by the arrow [78]...

Kordonsky, W. Magnetorheological Effect as a Base of New Devices and Technologies. J. Magnetics and Magnetic Materials 122 (1993), pp. 395-398... 

Keywords smart materials, magnetic fillers, magnetorheological composites, elastomers, magnetic properties, mechanical properties, magnetorheological effect... 

MRE composites were prepared according to commonly used methods. Micro- and nanosized iron oxides and carbonyl iron powder were the active fillers of acrylonitrile -butadiene and ethylene - propylene rubber. It was found that micro- and nano- sized iron oxides and carbonyl iron powder improved mechanical properties of elastomers. They also changed their magnetic properties and reinforced the magnetorheological effects of the composites. 

Lokander M, Stenberg B, (2003) Improving the magnetorheological effect in isotropic... 

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