Material | Shape memory alloys (SMA) |
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Shape-Memory Alloys are metals that, after being strained, at a certain temperature revert back to their original shape. A change in their crystal structure above their transformation temperature causes them to return to their original shape.
SMAs enable large forces (generated when encountering any resistance during their transformation) and large movements actuation, as they can recover large strains. |
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Category
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Responsive (smart) materials, Mooving materials |
Products
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SMA stent for veins Superelastic glasses Coffeepot thermostat Electrical connector |
Processes
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Shape Memory Alloys "training" |
Similar materials
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Nickel-Titanium alloy Copper-base alloys Iron-base alloys |
References
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Shape Memory Applications Inc. Nitinol Devices & Components Inc. G. RAU GmbH & Co. |
Additional Info
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Shape-memory materials are also superelastic, namely they are able to sustain a large deformation at a constant temperature, and when the deforming force is released they return to their original undeformed shape. Typically, elastic strain up to 10%. |
Photo
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Thomas Nissen (Computer graphics) |
Copyright
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