Featured Research

from universities, journals, and other organizations

Scientists Determine Strength Of 'Liquid Smoke'

Date:
July 31, 2008
Source:
DOE/Lawrence Livermore National Laboratory
Summary:
Researchers have created a 3-D image of a material referred to as "liquid smoke." Aerogel, also known as liquid smoke or "San Francisco fog," is an open-cell polymer with pores smaller than 50 nanometers in diameter. For the first time, Lawrence Livermore and Lawrence Berkeley scientists have peered into this material and created three-dimensional images to determine its strength and potential new applications.

Section and isosurface rendering of a 500-nanometer cube from the interior of the 3D volume. The foam structure shows globular nodes that are interconnected by thin beam-like struts. Approximately 85 percent of the total mass is associated with the nodes, and there is no evidence of a significant fraction of dangling fragments.
Credit: Image courtesy of DOE/Lawrence Livermore National Laboratory

Researchers have created a 3D image of a material referred to as "liquid smoke."

Related Articles


Aerogel, also known as liquid smoke or "San Francisco fog," is an open-cell polymer with pores smaller than 50 nanometers in diameter.

For the first time, Lawrence Livermore and Lawrence Berkeley scientists have peered into this material and created three-dimensional images to determine its strength and potential new applications.

Aerogel is a form of nanofoam, an engineered material designed for high strengh-to-weight ratio. Such nanofoam structires are also present in the fields of geology, phospholipids, cells, bone structure, polymers and structural materials, wherever lightness and strength are needed.

These mesoporous (2-50 nanometer-sized pores) crystalline materials can be used as catalysts for cleaner fuels and for the diffusion of water and oil in porous rocks. The structure and diffusion properties of nanofoams are determined by their structure.

Aerogels have the highest internal surface area per gram of material of any known materials because of its complicated, cross-linked internal structure. They also exhibit the best electrical, thermal and sound insulation properties of any known solid. It's not easy to see inside aerogel to determine the topology and structure at nanoscale-length scales because the smallest pore is normally too small to be observed internally by any conventional microscope.

But Livermore scientist Anton Barty and Lawrence Berkeley researcher and former LLNL scientist Stefano Marchesini were determined. They inverted coherent X-ray diffraction patterns to capture the three-dimensional bulk lattice arrangement of a micron-sized piece of aerogel.

"By imaging an isolated object at high resolution in three dimensions, we've opened the door to a range of applications in material science, nanotechnology and cellular biology," Barty said.

For about 20 years, Livermore has developed and improved aerogels for national security applications, synthesized electrically conductive inorganic aerogels for use as supercapacitors, and as a water purifier for extracting harmful contaminants from industrial waste or for desalinizing seawater, and even used aerogel to capture stardust particles during NASA's Stardust mission.

The new research shows that the lattice structure within aerogel is weaker than expected. The researchers saw a structure made up of nodes connected by thin beams.

"This blob and beam structure explains why these low-density materials are weaker than predicted and explains the high mass scaling exponent seen in the materials," Barty said.

In the future, the 3D analysis could be applied to other porous materials and could help modeling filtration problems such as oil and water in minerals, Barty said.

Other Livermore researchers include Aleksandr Noy, Stefan Hau-Riege, Alexander Artyukhin, Ted Baumann, James Stolken, Tony van Buuren, John Kinney and former LLNL researcher Henry Chapman, who is now at the Centre for Free Electron Laser Science, DESY, in Hamburg, Germany.

The team used the Advanced Photon Source at Argonne National Laboratory for the experiments.

The research appears in the July 29 issue of the journal Physical Review Letters.


Story Source:

The above story is based on materials provided by DOE/Lawrence Livermore National Laboratory. Note: Materials may be edited for content and length.


Cite This Page:

DOE/Lawrence Livermore National Laboratory. "Scientists Determine Strength Of 'Liquid Smoke'." ScienceDaily. ScienceDaily, 31 July 2008. <www.sciencedaily.com/releases/2008/07/080729234306.htm>.
DOE/Lawrence Livermore National Laboratory. (2008, July 31). Scientists Determine Strength Of 'Liquid Smoke'. ScienceDaily. Retrieved January 26, 2015 from www.sciencedaily.com/releases/2008/07/080729234306.htm
DOE/Lawrence Livermore National Laboratory. "Scientists Determine Strength Of 'Liquid Smoke'." ScienceDaily. www.sciencedaily.com/releases/2008/07/080729234306.htm (accessed January 26, 2015).

Share This


More From ScienceDaily



More Matter & Energy News

Monday, January 26, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Hector the Robot Mimics a Giant Stick Insect

Hector the Robot Mimics a Giant Stick Insect

Reuters - Innovations Video Online (Jan. 26, 2015) A robot based on a stick insect can navigate difficult terrain autonomously and adapt to its surroundings. Tara Cleary reports. Video provided by Reuters
Powered by NewsLook.com
Obama Reveals Nuclear Breakthrough on Landmark India Trip

Obama Reveals Nuclear Breakthrough on Landmark India Trip

Reuters - News Video Online (Jan. 25, 2015) In a glow of bonhomie, U.S. President Barack Obama and Indian Prime Minister Narendra Modi unveil a deal aimed at unlocking billions of dollars in nuclear trade. Pavithra George reports. Video provided by Reuters
Powered by NewsLook.com
NTSB: Missing Planes' Black Boxes Should Transmit Wirelessly

NTSB: Missing Planes' Black Boxes Should Transmit Wirelessly

Newsy (Jan. 23, 2015) In light of high-profile plane disappearances in the past year, the NTSB has called for changes to make finding missing aircraft easier. Video provided by Newsy
Powered by NewsLook.com
Iconic Metal Toy Meccano Goes Robotic

Iconic Metal Toy Meccano Goes Robotic

Reuters - Innovations Video Online (Jan. 22, 2015) Classic children&apos;s toy Meccano has gone digital, releasing a programmable kit robot that can be controlled by voice recognition. The toymakers say Meccanoid G15 KS is easy to use and is compatible with existing Meccano pieces. Jim Drury reports. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins