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| THERMODYNAMICS - ENTROPY AND THE SECOND LAW - HEAT CYCLES | NC State University Faculty Access |
Memory Wire # 4F30.601 |
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Description: A wire made out of nickel and titanium, called nitinol, can be bent easily when cooled down and straightens forcefully when heated. It "remembers" a shape when molded while held in a flame. Straighten the wire in ice water, then hold in the flame again. It will go back to the shape you molded it to hold. Can be used to discuss various applications including nitinol engines and deployment of satellite antennas. Hazards: Keep away from face while doing the demo; the wire straightens quite forcefully and could cause injury. Purchased/Built: purchased Setup Time: 5 minutes Quant. in Demo Room: 1 |
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Home Manual Demo Suggestions NCSU Physics Demonstrations © 2007, North Carolina State University Department of Physics. The design of this site nor the contents may be copied without the express written permission of the NC State University Department of Physics. |
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