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shape memory |
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shape memory, property possessed by certain alloys alloy (ăl`oi, əloi`) [O. Fr. ..... Click the link for more information. that allows them to return, when heated, to their original shape after having been deformed. This effect results because, as the alloy is deformed, it undergoes a martensitic (or athermal) transformation—a solid-state transition that rapidly changes the crystalline structure of the alloy without thermal activation—that is readily reversed once an appropriate amount of heat is applied. Among the alloys are copper-aluminum-nickel, copper-zinc-aluminum, nickel-titanium, and iron-manganese-silicon. Applications of shape memory include heat-activated fasteners, switches, eyeglass frames, orthopedic devices, teeth braces, and blood clot filters. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The material boasts excellent accuracy, speed, and shape memory, making it suitable for functional prototypes and master patterns, the company says. In addition to exploring nanotechnology, participants will be informed on conductive polymers, shape memory polymers, and more. Not only do they have embedded microchips [which make them "smart"], they are made with shape memory materials that allow them to be fixed and released remotely, time after time. |
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