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Guru3D.com » News » Shape Reconfigurable Liquid Metal Video

Shape Reconfigurable Liquid Metal Video

by Hilbert Hagedoorn on: 09/18/2014 08:46 AM | source: | 6 comment(s)

Researchers at NC State have developed a new method to control the interfacial energy of a liquid metal via electrochemical deposition (or removal) of an oxide layer on its surface using ~1 volt. Liquid metals have very large surface tension and therefore typically adopt a spherical shape. Surfactants, like soap, can lower the interfacial tension between two dissimilar liquids (for example, water and oil), but have negligible impact on the large interfacial tensions of liquid metal. Unlike conventional surfactants, the approach here can tune the interfacial tension of a metal significantly (from ~7x that of water to near zero), rapidly, and reversibly using only modest voltages. These properties can be harnessed to induce new electrohydrodynamic phenomena for manipulating liquid metal alloys based on gallium, which may enable shape-reconfigurable metallic components in electronic, electromagnetic, and microfluidic devices without the use of toxic mercury. The results also suggest that oxides—which are ubiquitous on most metals and semiconductors—may be harnessed to lower interfacial energy between dissimilar materials. 







« Samsung unveils S27D590C curved 27-inch monitor · Shape Reconfigurable Liquid Metal Video · Samsung Mass Producing 20-Nanometer 6Gb LPDDR3 Mobile DRAM »

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BLEH!
Senior Member



Posts: 6049
Joined: 2010-10-17

#4915337 Posted on: 09/18/2014 09:29 AM
That's awesome.

Darkest
Senior Member



Posts: 10121
Joined: 2003-03-25

#4915366 Posted on: 09/18/2014 09:52 AM
Obligatory Terminator post.



Joking aside, that's pretty cool.

Mato87
Senior Member



Posts: 282
Joined: 2012-11-22

#4915493 Posted on: 09/18/2014 12:19 PM
Holyyy Spaghetti !!
Have the Cyberdyne Systems been founded yet?

schmidtbag
Senior Member



Posts: 5631
Joined: 2012-11-10

#4915560 Posted on: 09/18/2014 02:08 PM
This is pretty impressive, and nice to see gallium have a purpose that takes advantage of its liquid state properties. I'll be interested to see what they can manage to release with this, because as of right now I don't see any use. If they gave examples during the video, I didn't hear it since I don't have speakers on my office computer.

Loobyluggs
Senior Member



Posts: 4058
Joined: 2008-09-07

#4915570 Posted on: 09/18/2014 02:24 PM
Never before have I seen a video with such a completely inappropriate musical choice.

Try playing it on your phone whilst on a train or sipping coffee with the music turned up, and watch as people give you 'that look'.

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