Featured Research

from universities, journals, and other organizations

Researchers Analyze Nanostructures With Transportation Applications

Date:
March 15, 2001
Source:
Northwestern University
Summary:
Northwestern University researchers have become the first to image and analyze a class of nanostructures that are stronger and lighter than steel and that could be used in the transportation industry, possibly as hard coatings on gears to improve the efficiency of vehicles or as an oxidation-resistant outer coating for airplane windows.

Evanston, IL — Northwestern University researchers have become the first to image and analyze a class of nanostructures that are stronger and lighter than steel and that could be used in the transportation industry, possibly as hard coatings on gears to improve the efficiency of vehicles or as an oxidation-resistant outer coating for airplane windows.

Once developed fully, the nanostructures also could be embedded in other materials, such as polymers, to increase their strength.

The analysis of the single-walled boron nitride (BN) nanostructures will be published in the March 12 issue of the journal Physical Review Letters.

"Knowledge of these exotic new structures will open the doors to making novel hard coatings for a variety of materials," said Laurence Marks, director of the new Center for Transportation Nanotechnology at Northwestern. "Understanding the strengths and weaknesses of the BN nanostructures will enable us to make better materials at a reasonable cost."

The structures include tiny nanotubes made up of atoms of boron and nitrogen that are more oxidation resistant and are expected to have better mechanical and electronic properties than their well-known cousins, carbon nanotubes.

Marks, who also is professor of materials science and engineering, led a team in imaging the BN nanostructures — tubes, buckyballs and cones that are more than 1,000 times smaller than a human hair. The high-resolution, high-vacuum electron microscope used for the study was designed and built at Northwestern and is the only one of its kind.

The researchers have shown that the BN nanostructures, which have walls only one atom thick, are essentially made up of hexagons of boron and nitrogen with the occasional fourfold and eightfold rings connecting them and allowing them to bend, giving them their distinct shapes. Carbon nanotubes, on the other hand, are primarily hexagons with occasional fivefold and sevenfold rings.

Marks and his team made the nanostructures by directly depositing boron and nitrogen onto a substrate, unlike with the creation of carbon nanotubes, which are normally made in the gas phase.

The other author on the paper is Erman Bengu, currently a research engineer at Intel Corporation in San Francisco. The research was supported by the Air Force Office of Scientific Research.

An article describing Marks’ paper, published by the American Physical Society, is on the Web site of Physical Review Focus at http://focus.aps.org.

Northwestern University, a leader in nanotechnology research and home of the first federally funded nanotechnology facility in the country, established the Center for Transportation Nanotechnology in November 2000 to advance the education and research frontiers of nanotechnology as applied to the transportation sector. The center, which is part of the University’s Institute for Nanotechnology, brings together scientists, engineers and transportation experts to develop new technologies that will lead to faster, cheaper and safer transportation systems.


Story Source:

The above story is based on materials provided by Northwestern University. Note: Materials may be edited for content and length.


Cite This Page:

Northwestern University. "Researchers Analyze Nanostructures With Transportation Applications." ScienceDaily. ScienceDaily, 15 March 2001. <www.sciencedaily.com/releases/2001/03/010312071600.htm>.
Northwestern University. (2001, March 15). Researchers Analyze Nanostructures With Transportation Applications. ScienceDaily. Retrieved September 21, 2014 from www.sciencedaily.com/releases/2001/03/010312071600.htm
Northwestern University. "Researchers Analyze Nanostructures With Transportation Applications." ScienceDaily. www.sciencedaily.com/releases/2001/03/010312071600.htm (accessed September 21, 2014).

Share This



More Matter & Energy News

Sunday, September 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Thousands March in NYC Over Climate Change

Thousands March in NYC Over Climate Change

AP (Sep. 21, 2014) — Accompanied by drumbeats, wearing costumes and carrying signs, thousands of demonstrators filled the streets of Manhattan and other cities around the world on Sunday to urge policy makers to take action on climate change. (Sept. 21) Video provided by AP
Powered by NewsLook.com
What This MIT Sensor Could Mean For The Future Of Robotics

What This MIT Sensor Could Mean For The Future Of Robotics

Newsy (Sep. 20, 2014) — MIT researchers developed a light-based sensor that gives robots 100 times the sensitivity of a human finger, allowing for "unprecedented dexterity." Video provided by Newsy
Powered by NewsLook.com
MIT BioSuit A New Take On Traditional Spacesuits

MIT BioSuit A New Take On Traditional Spacesuits

Newsy (Sep. 19, 2014) — The MIT BioSuit could be an alternative to big, bulky traditional spacesuits, but the concept needs some work. Video provided by Newsy
Powered by NewsLook.com
New Music With Recycled Instruments at Colombia Fest

New Music With Recycled Instruments at Colombia Fest

AFP (Sep. 19, 2014) — Jars, bottles, caps and even a pizza box, recovered from the trash, were the elements used by four musical groups at the "RSFEST2014 Sonorities Recycling Festival", in Colombian city of Cali. Duration: 00:49 Video provided by AFP
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:
from the past week

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