Transformations of Liquid Metals in Ionic Liquid

Abstract: Experimental studies were carried out on the motions and transformations of liquid metal in ionic liquid under applied electric field. The induced vortex rings and flows of ionic liquid were determined via the photographs taken sequentially over the experiments. The polarization of electric double layer of liquid metals was employed to explain the flow of ionic liquid with the presence of liquid metal. Unlike former observation of liquid metal machine in conventional solution, no gas bubble was generated throughout the whole experiments, which makes it possible to encapsulate the liquid system for fabricating soft robots.