Science Fair Project Encyclopedia
Electrorheological fluid
Electrorheological (ER) fluids are suspensions of extremely fine particles (up to 50 micrometres) in non-conducting fluids. The apparent viscosity of these fluids changes reversibly by an order of 100000 in response to an electric field.
For example, a typical ER fluid can go from the consistency of a liquid to that of a gel, and back, with response times on the order of milliseconds. The change in viscosity is proportional to the applied potential.
10-26-2009 08:16:03
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details