| Budget Amount *help |
¥19,370,000 (Direct Cost: ¥14,900,000、Indirect Cost: ¥4,470,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2013: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2012: ¥11,960,000 (Direct Cost: ¥9,200,000、Indirect Cost: ¥2,760,000)
Fiscal Year 2011: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Outline of Final Research Achievements |
We have investigated the effects of the various factors on the negative magneto-rheological properties of hematite particle suspensions theoretically and experimentally. Brownian dynamics simulations have been performed in order to investigate the relationship between the magneto-rheological properties and the phase change of aggregates. From the experimental study, we have verified that the negative magneto-rheological effect surely arises in an actual hematite particle suspension. From the theoretical analysis, we have developed the Brownian dynamics simulation method that takes into account the spin Brownian motion and clarified in detail the influence of the various factors on the negative magneto-rheological properties. From these studies, we have succeeded in obtaining the valuable information for controlling the negative magneto-rheological properties of hematite particle suspensions by means of an external magnetic and flow field.
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