Featured Research

from universities, journals, and other organizations

UIC Engineer Discovers New Diamond Applications

Date:
October 20, 1999
Source:
University Of Illinois At Chicago
Summary:
Since 1956, when scientists discovered how to make artificial diamonds in a laboratory under high pressure, researchers have attempted to find a pressure limit that would cause diamonds to structurally collapse. Until now, this pressure limit could not be reached.

Since 1956, when scientists discovered how to make artificial diamonds in a laboratory under high pressure, researchers have attempted to find a pressure limit that would cause diamonds to structurally collapse. Until now, this pressure limit could not be reached. As reported in the Oct. 14 issue of Nature, Yury Gogotsi, assistant professor of mechanical engineering from the University of Illinois at Chicago and his colleagues, Andreas Kailer and Klaus Nickel from the University of Tuebingen, Germany, have -- through an alternate method, called shearing -- done just that.

While most scientists have attempted to use compression to change the cubic arrangement of diamonds that gives them their hardness, Gogotsi and his colleagues essentially sheared a diamond layer by layer until it formed graphite, commonly used in pencil lead. This shearing can be done simply by pushing a sharp diamond stylus into the diamond surface.

The resulting diamond shavings may be useful substrates in making computer chips, for example, which could enable more powerful processors. Likewise, such artificial "gems" can be used to make machine components and gears. The discovery also suggests how to cut and polish hard diamond crystals in a more efficient way and will enable new applications for diamonds.

Diamonds have been a mainstay in science and technology for decades.

"The use of diamonds in industry far exceeds the use of diamonds for jewelry," Gogotsi says. "They are a widely used industrial product because they have the highest thermal conductivity and are the hardest of any known material."

"We've expanded the limits of our knowledge today," Gogotsi says. "It's something that's been considered impossible for more than 40 years."

With 25,000 students, the University of Illinois at Chicago is the largest and most diverse university in the Chicago area. UIC is home to the largest medical school in the United States and is one of the 88 leading research universities in the country. Located just west of Chicago's Loop, UIC is a vital part of the educational, technological and cultural fabric of the area.


Story Source:

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


Cite This Page:

University Of Illinois At Chicago. "UIC Engineer Discovers New Diamond Applications." ScienceDaily. ScienceDaily, 20 October 1999. <www.sciencedaily.com/releases/1999/10/991020080444.htm>.
University Of Illinois At Chicago. (1999, October 20). UIC Engineer Discovers New Diamond Applications. ScienceDaily. Retrieved July 29, 2014 from www.sciencedaily.com/releases/1999/10/991020080444.htm
University Of Illinois At Chicago. "UIC Engineer Discovers New Diamond Applications." ScienceDaily. www.sciencedaily.com/releases/1999/10/991020080444.htm (accessed July 29, 2014).

Share This




More Matter & Energy News

Tuesday, July 29, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Climate Change Could Cost Billions, According To White House

Climate Change Could Cost Billions, According To White House

Newsy (July 29, 2014) A report from the White House warns not curbing greenhouse gas emissions could cost the U.S. billions. Video provided by Newsy
Powered by NewsLook.com
Stranded Whale Watching Boat Returns to Boston

Stranded Whale Watching Boat Returns to Boston

Reuters - US Online Video (July 29, 2014) Passengers stuck overnight on a whale watching boat return safely to Boston. Linda So reports. Video provided by Reuters
Powered by NewsLook.com
Baluchistan Mining Eyes an Uncertain Future

Baluchistan Mining Eyes an Uncertain Future

AFP (July 29, 2014) Coal mining is one of the major industries in Baluchistan but a lack of infrastructure and frequent accidents mean that the area has yet to hit its potential. Duration: 01:58 Video provided by AFP
Powered by NewsLook.com
Easier Nuclear Construction Promises Fall Short

Easier Nuclear Construction Promises Fall Short

AP (July 29, 2014) The U.S. nuclear industry started building its first new plants using prefabricated Lego-like blocks meant to save time and prevent the cost overruns that crippled the sector decades ago. So far, it's not working. (July 29) Video provided by AP
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