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




TECH SPACE
Researchers Use Liquid Metal to Create Wires That Stretch Eight Times Their Original Length
by Staff Writers
Raleigh NC (SPX) Dec 21, 2012


The tube, filled with liquid metal, can be stretched many times its original length. For a larger version of this image please go here.

Researchers from North Carolina State University have created conductive wires that can be stretched up to eight times their original length while still functioning. The wires can be used for everything from headphones to phone chargers, and hold potential for use in electronic textiles.

To make the wires, researchers start with a thin tube made of an extremely elastic polymer and then fill the tube with a liquid metal alloy of gallium and indium, which is an efficient conductor of electricity.

"Previous efforts to create stretchable wires focus on embedding metals or other electrical conductors in elastic polymers, but that creates a trade-off," says Dr. Michael Dickey, an assistant professor of chemical and biomolecular engineering at NC State and co-author of a paper on the research.

"Increasing the amount of metal improves the conductivity of the composite, but diminishes its elasticity," Dickey says.

"Our approach keeps the materials separate, so you have maximum conductivity without impairing elasticity. In short, our wires are orders of magnitude more stretchable than the most conductive wires, and at least an order of magnitude more conductive than the most stretchable wires currently in the literature." Video of the stretchable wires is available here.

While the manufacturing of the new wires is relatively straightforward, Dickey notes that one challenge needs to be addressed before the wires can be considered for popular products: how to minimize leakage of the metal if the wires are severed.

The paper, "Ultrastretchable Fibers with Metallic Conductivity Using a Liquid Metal Alloy Core," is published online in Advanced Functional Materials. The paper was co-authored by Shu Zhu, a former undergraduate at NC State; Dr. Ju-Hee So, a former Ph.D. student at NC State; Robin Mays and William Barnes, Ph.D. students at NC State; Dr. Sharvil Desai, a former postdoctoral researcher at NC State; and Dr. Behnam Pourdeyhimi, the William A. Klopman Distinguished Chaired Professor of Materials in NC State's College of Textiles and a professor of chemical and biomolecular engineering in the university's College of Engineering.

.


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
pH measurements: How to see the real face of electrochemistry and corrosion?
Warsaw, Poland (SPX) Dec 21, 2012
For several decades antimony electrodes have been used to measure the acidity/basicity - and so to determine the pH value. Unfortunately, they allow for measuring pH changes of solutions only at a certain distance from electrodes or corroding metals. Researchers at the Institute of Physical Chemistry of the Polish Academy of Sciences developed a method for producing antimony microelectrode ... read more


TECH SPACE
GRAIL Lunar Impact Site Named for Astronaut Sally Ride

NASA probes crash into the moon

No plans of sending an Indian on moon

Rocket Burn Sets Stage for Dynamic Moon Duos' Lunar Impact

TECH SPACE
Opportunity For Some Shoulder Workout At Copper Cliff

Enabling ChemCam to Measure Key Isotopic Ratios on Mars and Other Planets

Curiosity Rover Explores 'Yellowknife Bay'

Curious About Life: Interview with Darby Dyer

TECH SPACE
White House to honor scientists, inventors

TDRS-K Arrives at Kennedy for Launch Processing

Sierra Nevada Corporation Selected by NASA to Receive Human Spaceflight Certification Products Contract

NASA Progressing Toward First Launch of Orion Spacecraft

TECH SPACE
Mr Xi in Space

China plans manned space launch in 2013: state media

China to launch manned spacecraft

Tiangong 1 Parked And Waiting As Shenzhou 10 Mission Prep Continues

TECH SPACE
Three astronauts blast off for ISS in Russian craft

Soyuz rocket brings trio to space station

ISS Orbit Raised Ahead of Crew Arrival

Station Crew Does Maintenance as Soyuz Rolls to Launch Pad

TECH SPACE
Ariane 5 ECA orbits Skynet 5D and Mexsat Bicentenario satellites

Payload integration complete for final 2012 Ariane 5 mission

Arctic town eyes future as Europe's gateway to space

ISRO planning 10 space missions in 2013

TECH SPACE
Nearby star is good candidate for Earth-like planets

Venus transit and lunar mirror could help astronomers find worlds around other stars

Astronomers discover and 'weigh' infant solar system

Search for Life Suggests Solar Systems More Habitable than Ours

TECH SPACE
EU: Samsung injunctions against Apple breach rules

MEXSAT Bicentenario Satellite Sends First Signals from Space

JILA physicists achieve elusive 'evaporative cooling' of molecules

Sustainable way to make a prized fragrance ingredient




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