Shima, P. D. ; Philip, John ; Baldev Raj, (2009) Magnetically controllable nanofluid with tunable thermal conductivity and viscosity Applied Physics Letters, 95 (13). 133112_1-133112_3. ISSN 0003-6951
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Official URL: http://link.aip.org/link/?APPLAB/95/133112/1
Related URL: http://dx.doi.org/10.1063/1.3238551
Abstract
We report the viscosity (η) and thermal conductivity (k) enhancement in a stable magnetic nanofluid containing particles size <10 nm as a function of volume fraction (vol %), shear rate, magnetic field, and time. Without field, the η enhancement of nanoparticle is much larger than that of k. In a nanofluid with 0.078 vol %, the k/η ratio is tunable from 0.725 to 2.35 by controlling the applied field. Our results show that magnetic nanofluids with tunable k/η ratio can be used as multifunctional "smart materials" for miniature cooling cum damping applications.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Institute of Physics. |
| ID Code: | 40461 |
| Deposited On: | 24 May 2011 06:36 |
| Last Modified: | 24 May 2011 06:36 |
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