Free Newsletters - Space News - Defense Alert - Environment Report - Energy Monitor
. 24/7 Space News .




TECH SPACE
Researchers Build 3-D Structures Out of Liquid Metal
by Staff Writers
Raleigh NC (SPX) Jul 11, 2013


Researchers have developed three-dimensional structures out of liquid metal. Image: Michael Dickey.

Researchers from North Carolina State University have developed three-dimensional (3-D) printing technology and techniques to create free-standing structures made of liquid metal at room temperature.

"It's difficult to create structures out of liquids, because liquids want to bead up. 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," says Dr. Michael Dickey, an assistant professor of chemical and biomolecular engineering at NC State and co-author of a paper describing the work.

The researchers developed multiple techniques for creating these structures, which can be used to connect electronic components in three dimensions. White it is relatively straightforward to pattern the metal "in plane" - meaning all on the same level - these liquid metal structures can also form shapes that reach up or down.

One technique involves stacking droplets of liquid metal on top of each other, much like a stack of oranges at the supermarket. The droplets adhere to one another, but retain their shape - they do not merge into a single, larger droplet. Video of the process is available here.

Another technique injects liquid metal into a polymer template, so that the metal takes on a specific shape. The template is then dissolved, leaving the bare, liquid metal in the desired shape. The researchers also developed techniques for creating liquid metal wires, which retain their shape even when held perpendicular to the substrate.

Dickey's team is currently exploring how to further develop these techniques, as well as how to use them in various electronics applications and in conjunction with established 3-D printing technologies.

"I'd also like to note that the work by an undergraduate, Collin Ladd, was indispensable to this project," Dickey says. "He helped develop the concept, and literally created some of this technology out of spare parts he found himself."

The paper, "3-D Printing of Free Standing Liquid Metal Microstructures," is published online in Advanced Materials. Ladd, a recent NC State graduate, is lead author. Co-authors are Dickey; former NC State Ph.D. student Dr. Ju-Hee So; and Dr. John Muth, a professor of electrical and computer engineering at NC State.

The work was supported by a National Science Foundation CAREER award and the National Science Foundation's ASSIST Engineering Research Center at NC State.

"3-D Printing of Free Standing Liquid Metal Microstructures" Collin Ladd, Ju-Hee So, John Muth and Michael D. Dickey, North Carolina State University; Published: Online July 4 in Advanced Materials

.


Related Links
North Carolina State University
Space Technology News - Applications and Research






Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News





TECH SPACE
Bioengineers Use Adhesion to Combine Silicones and Organic Materials
Urbana IL (SPX) Jul 11, 2013
Introductory chemistry students learn that oil and water repel each other. So do other hydrophobic substances, which carry no electric charge, and hydrophilic substances, which carry an electric charge that allows them to mix with water. In a study reported in Angewandte Chemie, a group of University of Illinois bioengineers have found a way to strongly adhere hydrogels to hydrophobic sili ... read more


TECH SPACE
Scientist says Earth may once have been orbited by two moons

Dust hazard for Moon missions: scientists

NASA Seeks Information on Commercial Robotic Lunar Lander Capabilities

Orbiting astronaut controls robot on Earth, testing feasibility of CU-Boulder project on far side of the moon

TECH SPACE
Mars Rover Curiosity Begins Trek Toward Mount Sharp

Science Team Outlines Goals for NASA's 2020 Mars Rover

Is Mars mission Indian rocket's silver jubilee flight?

NASA's next Mars rover will advance hunt for past life

TECH SPACE
NASA Selects Seven Projects for 2014 X-Hab Innovation Challenge

Space seeds could "benefit" traditional Chinese medicines

Kennedy Facilities Key to NASA's Transition

Voyager 1 Explores Final Frontier Of Our Solar Bubble

TECH SPACE
China's space tracking ship Yuanwang-5 berths at Jakarta for replenishment

China plans to launch Tiangong-2 space lab around 2015

Twilight for Tiangong

China calls for international cooperation in manned space program

TECH SPACE
Station Astronauts Complete First of Two July Spacewalks

Russia to go ahead with space freighter launch

ISS technology to 'hear' potential leaks

Russian cosmonauts conduct space station tasks in spacewalk

TECH SPACE
Special group to be set up for inspecting production of Proton-M carrier rockets

Two Rockets Launched From Wallops

Specialists unrelated to Khrunichev to check Proton-M rocket production

Proton Rocket to Stay in Demand Despite Accidents

TECH SPACE
Gaps in dust around stars may not indicate planets as many believe

Hubble Telescope reveals variation between hot extrasolar planet atmospheres

UCSB Astronomer Uncovers The Hidden Identity Of An Exoplanet

Gas-Giant Exoplanets Cling Close to Their Parent Stars

TECH SPACE
Experts row over 'earliest' Chinese inscriptions find

Designer droplets open new possibilities

Silicon oxide memories transcend a hurdle

Researchers Build 3-D Structures Out of Liquid Metal




The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement