Menu
It's not a Terminator, but scientists create liquid metal with 3D printer

It's not a Terminator, but scientists create liquid metal with 3D printer

They're not creating a T-1000 robot assassin, but they are building electronic components

It may not quite be a character out of the Terminator 2, but university scientists have developed a way to use 3D printing to create structures made out of liquid metal.

Researchers at North Carolina State University use 3D printing to stack droplets of liquid metal on top of each other, likening the effect to a stack of oranges at the grocery store. The droplets adhere to each other but retain their own shape instead of melding into one large droplet, the university reports.

While many people might be picturing Terminator 2's T-1000, a shapeshifting robot assassin made of liquid metal, university researchers have slightly different plans for the technology. Scientists are focused, at this point, on using their 3D printing techniques to build wires for building and connecting electronic components.

"It's difficult to create structures out of liquids, because liquids want to bead up," said Michael Dickey, an assistant professor of chemical and biomolecular engineering at North Carolina State, in a statement. "But we've found that a liquid metal alloy of gallium and indium reacts to the oxygen in the air at room temperature to form a 'skin' that allows the liquid metal structures to retain their shapes."

Another technique that Dickey and his team created injects liquid metal into a polymer template. The metal takes on the shape of the template but then the template dissolves, leaving the bare metal.

Three-dimensional printing has been making great strides in recent months.

In June, researchers at Harvard University and the University of Illinois at Urbana-Champaign announced that they had used 3D printing to produce lithium-ion batteries the size of a grain of sand.

NASA scientists talked this spring about taking 3D printers into space to produce tools, and even food, for astronauts.

"As NASA ventures further into space, [whether] redirecting an asteroid or sending humans to Mars, we'll need transformative technology to reduce cargo weight and volume," NASA's chief administrator Charles Bolden said in May. "In the future, perhaps astronauts will be able to print the tools and components they need in space."

Some 3D technologies are even driving controversy. Lawmakers and the public took notice earlier this year when the organization Defense Distributed fired a handgun made with 3D printing technology, prompting the New York City Council to introduce legislation that would prohibit anyone other than those licensed as gunsmiths from using 3D printers to make guns and related equipment. The state of California Assembly also introduced a bill banning guns made using 3D printing.

Scientists at North Carolina State University use 3D printing to create structures made out of liquid metal.

This article, It's not a Terminator, but scientists create liquid metal with 3D printer, was originally published at Computerworld.com.

Sharon Gaudin covers the Internet and Web 2.0, emerging technologies, and desktop and laptop chips for Computerworld. Follow Sharon on Twitter at @sgaudin, on Google+ or subscribe to Sharon's RSS feed. Her email address is sgaudin@computerworld.com.

See more by Sharon Gaudin on Computerworld.com.

Read more about emerging technologies in Computerworld's Emerging Technologies Topic Center.


Follow Us

Join the newsletter!

Error: Please check your email address.

Tags hardwareEmerging Technologieshardware systemsNorth Carolina State University

Featured

Slideshows

Meet the top performing HP partners in NZ

Meet the top performing HP partners in NZ

HP honoured leading partners across the channel at the Partner Awards 2017 in New Zealand, recognising excellence across the entire print and personal systems portfolio.

Meet the top performing HP partners in NZ
Tech industry comes together as Lexel celebrates turning 30

Tech industry comes together as Lexel celebrates turning 30

Leading figures within the technology industry across New Zealand came together to celebrate 30 years of success for Lexel Systems, at a milestone birthday occasion at St Matthews in the City.​

Tech industry comes together as Lexel celebrates turning 30
HP re-imagines education through Auckland event launch

HP re-imagines education through Auckland event launch

HP New Zealand held an inaugural Evolve Education event at Aotea Centre in Auckland, welcoming over 70 principals, teachers and education experts to explore ways of shaping and enhancing learning using technology.

HP re-imagines education through Auckland event launch
Show Comments