Featured Research

from universities, journals, and other organizations

Researchers Beat Small Ceramic Fibre Health Problem To Spin Solutions For Furnaces, Aerospace And Shields For Mobile Phones

Date:
April 21, 1999
Source:
University Of Warwick
Summary:
Researchers at the Warwick Process Technology Group have devised a manufacturing technique for spun-fibre based ceramics that allows manufacturers to produce high tech ceramic fibres without the creation of very small diameter fibres that can be a health risk.

Researchers at the Warwick Process Technology Group have devised a manufacturing technique for spun-fibre based ceramics that allows manufacturers to produce high tech ceramic fibres without the creation of very small diameter fibres that can be a health risk.

Fine ceramic fibres have been about for many years. They are used because fineness is a desirable property in a range of applications. Unlike the bulk forms of ceramic, fine fibres are strong and flexible and unlike coarser fibres they do not scratch and irritate the skin. They can be used for a host of applications, from forming the walls of high temperature furnaces to acting as light weight components in planes and cars, and they can also be incorporated into a composite material with the properties of the normally brittle and hard ceramic in a tougher and more handleable form.

Fine fibres have the best thermal insulation properties and good thermal shock resistance, and do not crumple up when heated and cooled over and over again. In the home we see them in the artificial coal in gas fires and around the heating elements on hot plates.

How fine they can be has returned as a major health issue, with new legislation having come in at the beginning of this year. Ceramic fibres finer than 1 micron diameter are now known to be carcinogenic, and fibres finer than 3 microns are respired into the lungs. Processes making these fine fibres produce a spread of diameters, and even the best current materials contain a large proportion of fibres which can be respired. Some products even contain both dangerously fine and irritatingly coarse fibre!

Now the problem of achieving the desirable properties of fine ceramic fibres in an absolutely safe product is being addressed by a research team of chemical engineers, materials scientists and chemists at the Warwick Process Technology Group. They have developed a process which can manufacture a range of these high tech ceramic materials free from dangerously fine, or irritatingly coarse, fibres.

The Fibres Research Group at Warwick use a Sol-Gel blow-spinning technique, which is configured to produce very even fibers with none less than 3 microns in diameter. Their methods also pay particular attention to the formation of the spinning sol to the extent that they can make fibres of magnetic, piezoelectric and conductive ceramics, as well as the high temperature refractory fibres usually associated with ceramic processing. The materials made by this process can create a range of high tech ceramics such as:

* Highly heat resistant materials for use in very high temperature furnaces

* Materials treated to act as microwave shields – for use in mobile phones for example

* High performance lightweight components for the automobile and aerospace industry

* Magnetic, piezoelectric and conductive fibres for use in composite materials

* Medical implants - even artificial muscles


Story Source:

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


Cite This Page:

University Of Warwick. "Researchers Beat Small Ceramic Fibre Health Problem To Spin Solutions For Furnaces, Aerospace And Shields For Mobile Phones." ScienceDaily. ScienceDaily, 21 April 1999. <www.sciencedaily.com/releases/1999/04/990421073116.htm>.
University Of Warwick. (1999, April 21). Researchers Beat Small Ceramic Fibre Health Problem To Spin Solutions For Furnaces, Aerospace And Shields For Mobile Phones. ScienceDaily. Retrieved July 23, 2014 from www.sciencedaily.com/releases/1999/04/990421073116.htm
University Of Warwick. "Researchers Beat Small Ceramic Fibre Health Problem To Spin Solutions For Furnaces, Aerospace And Shields For Mobile Phones." ScienceDaily. www.sciencedaily.com/releases/1999/04/990421073116.htm (accessed July 23, 2014).

Share This




More Matter & Energy News

Wednesday, July 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Boeing Ups Outlook on 52% Profit Jump

Boeing Ups Outlook on 52% Profit Jump

Reuters - Business Video Online (July 23, 2014) Commercial aircraft deliveries rose seven percent at Boeing, prompting the aerospace company to boost full-year profit guidance- though quarterly revenues missed analyst estimates. Bobbi Rebell reports. Video provided by Reuters
Powered by NewsLook.com
Europe's Car Market on the Rebound?

Europe's Car Market on the Rebound?

Reuters - Business Video Online (July 23, 2014) Daimler kicks off a round of second-quarter earnings results from Europe's top carmakers with a healthy set of numbers - prompting hopes that stronger sales in Europe will counter weakness in emerging markets. Hayley Platt reports. Video provided by Reuters
Powered by NewsLook.com
9/11 Commission Members Warn of Terror "fatigue" Among American Public

9/11 Commission Members Warn of Terror "fatigue" Among American Public

Reuters - US Online Video (July 22, 2014) Ten years after releasing its initial report, members of the 9/11 Commission warn of the "waning sense of urgency" in combating terrorists attacks. Mana Rabiee reports. Video provided by Reuters
Powered by NewsLook.com
Government Approves East Coast Oil Exploration

Government Approves East Coast Oil Exploration

AP (July 18, 2014) The Obama administration approved the use of sonic cannons to discover deposits under the ocean floor by shooting sound waves 100 times louder than a jet engine through waters shared by endangered whales and turtles. (July 18) 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