Nano Archive

Magnetic carbonyl iron nanoparticle based magnetorheological suspension and its characteristics

Park, Bong Jun and Song, Kang Hyun and Choi, Hyoung Jin (2009) Magnetic carbonyl iron nanoparticle based magnetorheological suspension and its characteristics. Materials Letters, 63 (15). 1350 - 1352.

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Magnetic nano-sized carbonyl iron (CI) particle was prepared and adopted as an additive for micron-sized CI based magnetorheological (MR) fluid, in which the magnetic nanoparticle was fabricated via decomposition of pentacarbonyl iron (Fe(CO)5). Magnetic property and morphology of the nanoparticle were confirmed via vibration sample magnetometer (VSM) and transmission electron microscopy (TEM), respectively. MR fluids, consisting of micron-sized CI and carrier fluid, were investigated under different external magnetic field strengths via a rotational rheometer. Their flow behaviors at a steady shear mode were examined with and without a nano-sized magnetic additive under magnetic field strength. The MR fluid with magnetic CI nanoparticle added demonstrated slightly higher yield behaviors, suggesting that micron-sized CI and magnetic CI nanoparticle particle were being oriented in magnetic field direction under applied magnetic field and with strengthened structure.

Item Type:Article
Uncontrolled Keywords:Magnetic materials; Viscoelasticity; Carbonyl iron; Magnetorheological fluid; Magnetic nanoparticle
Subjects:Physical Science > Nanomagnetics
Material Science > Nanostructured materials
ID Code:6595
Deposited By:SPI
Deposited On:10 Feb 2010 17:40
Last Modified:10 Feb 2010 17:40

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