Featured Research

from universities, journals, and other organizations

Fast-tracking the manufacture of glasses

Date:
June 29, 2010
Source:
American Institute of Physics
Summary:
Old glass is not the same as new glass -- and the difference is not just due to manufacturing techniques. Unlike crystalline solids, glasses change as they age, increasing packing density and stability. Ideally, a glass should be cooled slowly, maybe over 10,000 years or so, but that is not usually practical. New research details the production of highly stable glass films of indomethacin by physical vapor deposition.

Old glass is not the same as new glass -- and the difference is not just due to manufacturing techniques. Unlike crystalline solids, glasses change as they age, increasing packing density and stability. Ideally, a glass should be cooled slowly, maybe over 10,000 years or so, but that is not usually practical.

Related Articles


Research reported in the Journal of Chemical Physics, published by the American Institute of Physics (AIP), details the production of highly stable glass films of indomethacin by physical vapor deposition. Researchers used alternating current nanocalorimetry to evaluate the heat capacity of the thin glass films. Heat capacity provides a way to probe the fundamental structure of the solid because it is related to particle vibrations. Heat capacity values were observed that are the equivalent to significantly aged conventional glasses.

"We like to call these glasses 'impossible materials' because their properties match things that would take a million years to manufacture using conventional techniques," says author Mark Ediger. The research is an international collaboration combining "interesting materials" from the University of Wisconsin-Madison and a "cool technology" from the University of Rostock, Germany.

Ediger sees potential application of these techniques in manufacturing organic electronic devices such a photovoltaics. Current devices tend to wear out faster than manufacturers would like. "I am optimistic that we are learning to manipulate properties in a predictable way," he says. "If we can make an organic electronic material in ten minutes that would otherwise take a million years to prepare, we can manufacture things that people would not have considered before."


Story Source:

The above story is based on materials provided by American Institute of Physics. Note: Materials may be edited for content and length.


Journal Reference:

  1. Kenneth L. Kearns et al. Observation of low heat capacities for vapor-deposited glasses of indomethacin as determined by AC nanocalorimetry. Journal of Chemical Physics, 2010; [link]

Cite This Page:

American Institute of Physics. "Fast-tracking the manufacture of glasses." ScienceDaily. ScienceDaily, 29 June 2010. <www.sciencedaily.com/releases/2010/06/100629170947.htm>.
American Institute of Physics. (2010, June 29). Fast-tracking the manufacture of glasses. ScienceDaily. Retrieved October 25, 2014 from www.sciencedaily.com/releases/2010/06/100629170947.htm
American Institute of Physics. "Fast-tracking the manufacture of glasses." ScienceDaily. www.sciencedaily.com/releases/2010/06/100629170947.htm (accessed October 25, 2014).

Share This



More Matter & Energy News

Saturday, October 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

IKEA Desk Converts From Standing to Sitting With One Button

IKEA Desk Converts From Standing to Sitting With One Button

Buzz60 (Oct. 24, 2014) IKEA is out with a new convertible desk that can convert from a sitting desk to a standing one with just the push of a button. Jen Markham explains. Video provided by Buzz60
Powered by NewsLook.com
Ebola Protective Suits Being Made in China

Ebola Protective Suits Being Made in China

AFP (Oct. 24, 2014) A factory in China is busy making Ebola protective suits for healthcare workers and others fighting the spread of the virus. Duration: 00:38 Video provided by AFP
Powered by NewsLook.com
Real-Life Transformer Robot Walks, Then Folds Into a Car

Real-Life Transformer Robot Walks, Then Folds Into a Car

Buzz60 (Oct. 24, 2014) Brave Robotics and Asratec teamed with original Transformers toy company Tomy to create a functional 5-foot-tall humanoid robot that can march and fold itself into a 3-foot-long sports car. Jen Markham has the story. Video provided by Buzz60
Powered by NewsLook.com
Police Testing New Gunfire Tracking Technology

Police Testing New Gunfire Tracking Technology

AP (Oct. 24, 2014) A California-based startup has designed new law enforcement technology that aims to automatically alert dispatch when an officer's gun is unholstered and fired. Two law enforcement agencies are currently testing the technology. (Oct. 24) 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:

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