‘Terminator’-like liquid metal moves and stretches in 3D space (video)

canadafreepress.com | 3/20/2019 | American Chemical Society
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In the blockbuster Terminator movie franchise, an evil robot morphs into different human forms and objects and oozes through narrow openings, thanks to its “liquid-metal” composition. Although current robots don’t have these capabilities, the technology is getting closer with the development of new liquid metals that can be manipulated in 3D space with magnets. Reported in ACS Applied Materials & Interfaces, the materials could someday find applications in soft robotics. Watch them in action here.

Metals that are liquids at room temperature, such as gallium and certain alloys, have unique properties including high conductivity, low melting point and high deformability. These properties make them attractive for use in soft robots and flexible electronics. By adding magnetic particles, such as nickel or iron, researchers can produce liquid metals that they can manipulate with magnets. However, because of their high surface tension, most magnetic liquid metals can only move horizontally, and they must be immersed completely in liquid to avoid forming a paste. Liang Hu, Jing Liu and colleagues wanted to make a magnetic liquid metal that they could move and stretch both horizontally and vertically, without needing...
(Excerpt) Read more at: canadafreepress.com
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