Scientists have learned how to print three-dimensional objects from molten metal




In an attempt to create the main antagonist of the film “Terminator 2: Judgment Day» T-1000 scientists from the University of North Carolina was able to develop and master the technology to print three-dimensional objects from a liquid metal (an alloy of indium and gallium) at room temperature.

A group of scientists led by Dr. Michael Dickey, assistant professor of chemical and biomolecular engineering, was able to develop such an alloy of indium and gallium, which after printing can stably hold the desired shape. The alloy reacts with the oxygen and the printed pattern surface of the balls and binder yarns is formed of a thin film oxide.

This kind of “skin” does not only form a stable printed objects, but also keeps the alloy in the liquid state. Thus liquid metal printed by the printer 3D-object can be coated with a polymer which can retain its shape for a long time.

In the foreseeable future, this technology can help in the creation of flexible and elastic wires, which have been shown by researchers from the University of North Carolina in December 2012 . Development will also find use in biocompatible tissue electrode .

Did robots of the molten metal in the future become a reality. Finally it is worth noting the fact that indium and gallium are not toxic, in contrast to the same mercury.

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