Shrink-Wrapping Spacesuits Feel Like 'Second-Skin'

September 18, 2014 6:36 PM

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Shrink-Wrapping Spacesuits Feel Like 'Second-Skin'

The coils are made from a shape-memory alloy (SMA) — a type of material that “remembers” an engineered shape and, when bent or deformed, can spring back to this shape when heated.

The team incorporated the coils in a tourniquet-like cuff, and applied a current to generate heat. At a certain trigger temperature, the coils contract to their “remembered” form, such as a fully coiled spring, tightening the cuff in the process. In subsequent tests, the group found that the pressur...

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