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Elastic wires with liquid filling

31.12.2012

Conventional copper wires are good for high strength and low resistance, flexibility and ease of manufacture. However, they lack the elasticity that is sometimes very much in demand. To eliminate this drawback, you can twist the wire into a spiral, but scientists from the University of North Carolina in the USA were able to realize a more radical and beautiful idea.

The secret of the flexible and elastic wire they created is in its design. The elastic polymer insulation contains not copper, but an alloy of gallium and indium, which remains liquid at normal temperatures. Such a conductor can, without harm to itself and the connection it provides, lengthen eight times its original size.

One of the areas of application of such wires is "smart textiles" - a fabric with built-in electronic circuits. The main thing is not to tear or cut through the product from such a fabric so that the wires do not “leak”. Now scientists are thinking about how to minimize the consequences of such damage.

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