HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
News
Materials & Assembly

Video: 3D-Printed Liquid Metal Structures at Room Temperature

NO RATINGS
View Comments: Oldest First|Newest First|Threaded View
Page 1/2  >  >>
TJ McDermott
User Rank
Blogger
Terminator has ruined us
TJ McDermott   8/19/2013 10:03:48 AM
NO RATINGS
Come on, you KNOW you thought that first when you read the title.  OK, set that aside, and the technology is jaw-dropping.  The future is going to be fun!

Ann R. Thryft
User Rank
Blogger
Re: Terminator has ruined us
Ann R. Thryft   8/19/2013 1:07:06 PM
NO RATINGS
TJ, you might be surprised how many times the NCSU press release got republished with the word "Terminator" in the title and lead paragraph. To be honest, that wasn't the first thing I thought of.

JimT@Future-Product-Innovations
User Rank
Blogger
OK, then: “Rise of the Silver Surfer”.
JimT@Future-Product-Innovations   8/20/2013 2:14:23 PM
NO RATINGS
TJ – good statement; this IS jaw-dropping.  I wonder how well it might stand up to any prolonged use, as it appears to be pretty "fluid" (or, damageable).  Also, I have no idea how stable ( or, safe & non-toxic?) Gallium is.  I do know from my work with touch-screens and LCDs that Indium is pretty inert.

Greg M. Jung
User Rank
Platinum
Extruded Metal
Greg M. Jung   8/25/2013 12:44:54 PM
NO RATINGS
I was especially impressed with the extruded metal process to make wires and to connect circuits.  I could see an application for rapid prototype PCB's being made in the future (without the use of the old 'green wire' technique).

Ann R. Thryft
User Rank
Blogger
Re: Extruded Metal
Ann R. Thryft   8/26/2013 1:17:59 PM
NO RATINGS
I had a similar "vision" Greg about the use of these wires. I still think it all looks like magic.



Cabe Atwell
User Rank
Blogger
Re: Extruded Metal
Cabe Atwell   8/27/2013 2:31:01 PM
NO RATINGS
Incredible. I'm curious as to how much voltage can be delivered through the wire before it melts.

Ann R. Thryft
User Rank
Blogger
Re: Extruded Metal
Ann R. Thryft   8/27/2013 4:23:38 PM
NO RATINGS
Isn't this a mind-boggle? To answer your question, the paper does not mention voltage at all. It does say "Injection of liquid metal into microchannels is an established method to shape the metal for reconfigurable wires and antennas, interconnects, electrical components for microfluidics, and "soft" electrodes for electrical characterizations of thin films."

William K.
User Rank
Platinum
Printed liquid metal
William K.   8/31/2013 8:33:31 PM
NO RATINGS
This is quite impressive but not quite jaw dropping. Some of these alloys have ben around for a while, such as Kirksite, a low temperature melting metal used for a number of things, and quite hard, also.

The electrical properties would be interesting to know, and I can see that it probably has a bit of resistance, so it would not work for high currents. My concern would be the lack of strength. Consider what could happen if the assembly with this material as the interconnect got bumped a bit too hard, and the connections rearranged themselves. THAT could be quite a pain.

Ann R. Thryft
User Rank
Blogger
Re: Printed liquid metal
Ann R. Thryft   9/3/2013 12:02:58 PM
NO RATINGS
William, that was my concern, too about strength. There's not much in the article about this. The authors do describe one experimental prototype device, where "The liquid metal bridge connecting the LEDs functioned up to the strain limit of PDMS [polydimethylsiloxane] (Figure 4 b, ∼ 35% strain) and while being flexed without losing its electrical continuity."
Not much is said about electrical properties, but one thing they mentioned was that "electrical resistance remains largely unaffected because the skin is thin. In addition, the liquid metal adheres to most surfaces and alloys with many metals to form ohmic contacts."

William K.
User Rank
Platinum
Re: Printed liquid metal
William K.   9/3/2013 4:27:30 PM
NO RATINGS
Ann, those two descriptors make me quite concerned, since they also describe mercury quite well. It also alloys with many other metals and also develops a very thin skin. Actually, it develops a thin film, I would not call it a skin.

So now comes a question about the toxisity of this wonderful new material. Isn't it awful when people keep asking pointy questions?

Page 1/2  >  >>
Partner Zone
Latest Analysis
The new draw-it-on-a-napkin is the CAD program. As CAD programs become more ubiquitous and easier to use, they have replaced 2D sketching for early concepting.
These free camps are designed for children ages 10 to 18. Attendees are introduced to 3D CAD software and shown how 3D printers can make their work a reality. Here we check out the stops in California and Utah.
A University of Chicago graduate has invented a compact elliptical trainer that lets people work out at their desk while they work.
Dean Kamen told an audience at MD&M East 2014 that FDA regulators aren't to blame for stalling innovation in the medical device industry. Hear what he had to say.
Battery maker LG Chem Power Inc. plans to offer a new cell chemistry that could serve as the foundation for an affordable electric car with a 200-mile driving range by 2017.
More:Blogs|News
Design News Webinar Series
7/23/2014 11:00 a.m. California / 2:00 p.m. New York
7/17/2014 11:00 a.m. California / 2:00 p.m. New York
6/25/2014 11:00 a.m. California / 2:00 p.m. New York
5/13/2014 10:00 a.m. California / 1:00 p.m. New York / 6:00 p.m. London
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Aug 4 - 8, Introduction to Linux Device Drivers
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Next Class: August 12 - 14
Sponsored by igus
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service